Inflammation Of Sacroiliac Joint Icd 10

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Inflammation Of Sacroiliac Joint Icd 10
Diseases of the musculoskeletal system and connective tissue – Note

Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Type 2 Excludes

  • arthropathic psoriasis ( L40.5- )
  • certain conditions originating in the perinatal period ( P04 – P96 )
  • certain infectious and parasitic diseases ( A00-B99 )
  • compartment syndrome (traumatic) ( T79.A- )
  • complications of pregnancy, childbirth and the puerperium ( O00-O9A )
  • congenital malformations, deformations, and chromosomal abnormalities ( Q00-Q99 )
  • endocrine, nutritional and metabolic diseases ( E00 – E88 )
  • injury, poisoning and certain other consequences of external causes ( S00-T88 )
  • neoplasms ( C00-D49 )
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified ( R00 – R94 )

Diseases of the musculoskeletal system and connective tissue

Approximate Synonyms

  • Bilateral inflammation of sacroiliac joint
  • Bilateral sacroiliitis
  • Inflammation of left sacroiliac joint
  • Inflammation of right sacroiliac joint
  • Left sacroiliitis
  • Right sacroiliitis

ICD-10-CM M46.1 is grouped within Diagnostic Related Group(s) (MS-DRG v 40.0):

  • 551 Medical back problems with mcc
  • 552 Medical back problems without mcc

Convert M46.1 to ICD-9-CM Code History

  • 2016 (effective 10/1/2015) : New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016) : No change
  • 2018 (effective 10/1/2017) : No change
  • 2019 (effective 10/1/2018) : No change
  • 2020 (effective 10/1/2019) : No change
  • 2021 (effective 10/1/2020) : No change
  • 2022 (effective 10/1/2021) : No change
  • 2023 (effective 10/1/2022) : No change
  • Change (s) (in) (of) – see also Removal
    • inflammatory – see also Inflammation
      • sacroiliac M46.1
  • Inflammation, inflamed, inflammatory (with exudation)
    • joint NEC – see Arthritis
      • sacroiliac M46.1
  • Sacroiliitis NEC M46.1
  • Spondylitis (chronic) – see also Spondylopathy, inflammatory

    sacroiliac NEC M46.1

ICD-10-CM Codes Adjacent To M46.1 M46.00 site unspecified M46.01 occipito-atlanto-axial region M46.02 cervical region M46.03 cervicothoracic region M46.04 thoracic region M46.05 thoracolumbar region M46.07 lumbosacral region M46.08 sacral and sacrococcygeal region M46.09 multiple sites in spine M46.1 Sacroiliitis, not elsewhere classified M46.2 Osteomyelitis of vertebra M46.20 site unspecified M46.21 occipito-atlanto-axial region M46.22 cervical region M46.23 cervicothoracic region M46.24 thoracic region M46.25 thoracolumbar region M46.27 lumbosacral region M46.28 sacral and sacrococcygeal region Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

What is sacroiliac inflammation?

Introduction – Sacroiliitis is an inflammation of the sacroiliac joint (SI), usually resulting in pain. Often it is a diagnosis of exclusion. The sacroiliac joint (SI) is one of the largest joints in the body and is a common source of the buttock and lower back pain.

  1. It connects the bones of the ilium to the sacrum.
  2. Sacroiliitis can be particularly difficult to diagnose because its symptoms are similar to many other common sources of back pain.
  3. It often is overlooked as a source of back or buttock pain.
  4. Pain from this condition often is due to chronic degenerative causes yet relatively uncommon.

Sacroiliitis can be secondary to rheumatic, infectious, drug-related, or oncologic sources. Some specific examples of non-degenerative conditions that can lead to sacroiliitis are ankylosing spondylitis, psoriatic arthropathy, Bechet disease, hyperparathyroidism, and various pyogenic sources.

What is the ICD for sacroiliac joint?

ICD-10 code: S33.6 Sprain and strain of sacroiliac joint.

What is sacroiliac inflammation and dysfunction?

Introduction – Sacroiliac joint dysfunction is a term used to describe the pain of the sacroiliac joint (SI joint). It is usually caused by abnormal motion (i.e. hyper- or hypo-mobile) or malalignment of the sacroiliac joint. Sacroiliac joint syndrome is a significant source of pain in 15% to 30% of people with mechanical low back pain,

Sacroiliitis is not the same as SI joint dysfunction. Sacroiliitis is specific to an inflammatory processes present in the SI joint and the pain sensed is a direct result of those inflammatory processes, whereas sacroiliac joint dysfunction is a condition caused by abnormal motion or slight mispositioning of the SI joint.

Sacroiliac joint syndrome is a condition that is difficult to diagnose and is often overlooked by physicians and physiotherapists.

What is the ICD-10 code for arthritis in the SI joint?

98.

How long does it take for an inflamed sacroiliac joint to heal?

What is sacroiliac joint pain? – The SI joints are located between the iliac bones and the sacrum, connecting the spine to the hips. The two joints provide support and stability, and play a major role in absorbing impact when walking and lifting. From the back, the SI joints are located below the waist where two dimples are visible. Figure 1. The sacroiliac joints connect the base of the spine (sacrum) to the hip bones (ilium). Strong ligaments and muscles support the SI joints. There is a very small amount of motion in the joint for normal body flexibility. As we age our bones become arthritic and ligaments stiffen.

When the cartilage wears down, the bones may rub together causing pain (Fig.1). The SI joint is a synovial joint filled with fluid. This type of joint has free nerve endings that can cause chronic pain if the joint degenerates or does not move properly. Sacroiliac joint pain ranges from mild to severe depending on the extent and cause of injury.

Acute SI joint pain occurs suddenly and usually heals within several days to weeks. Chronic SI joint pain persists for more than three months; it may be felt all the time or worsen with certain activities. Other terms for SI joint pain include: SI joint dysfunction, SI joint syndrome, SI joint strain and SI joint inflammation.

What can cause sacroiliitis?

Sacroiliitis is linked to inflammatory arthritis of the spine. The inflammation may have different causes, including autoimmunity, microtrauma, exercise, and in some cases, infections. Sacroiliitis can also be associated with Crohn’s disease, inflammatory bowel disease, ulcerative colitis, and gout.

What causes sacroiliac joint pain?

Sacroiliac joint pain – Mayo Clinic Orthopedics & Sports Medicine The sacroiliac joints are the joints where the lower part of the spine (sacrum) connects to the pelvis. There are two sacroiliac joints, one on each side, with ligaments in each joint that hold the bones together.

Sacroiliac joint pain can be difficult to diagnose as other conditions can cause similar symptoms. Sacroiliac joint pain is most commonly felt in the low back and buttock but can also be referred into the thigh and leg. If numbness and tingling or weakness is present, an alternative diagnosis should be considered.

Sacroiliac pain can be aggravated with prolonged sitting or standing, standing on one leg, stair climbing, going from sit to stand, and with running. Potential causes of sacroiliac pain include arthritis, traumatic injury, pregnancy and post-partum, systemic inflammatory conditions, and infection.

  • Other potential contributors include spinal scoliosis, leg length discrepancy, and previous lumbar spine fusion.
  • Sometimes, there is no clear cause for sacroiliac pain.
  • The diagnosis of sacroiliac pain starts with a careful history and physical examination, which helps to distinguish sacroiliac pain from other potential etiologies.

Imaging is often recommended, starting with plain radiographs (X-rays). Sometimes your provider will recommend more advanced imaging, including a CT scan or MRI. If the diagnosis is not clear, a diagnostic (anesthetic) injection into the sacroiliac joint can provide valuable diagnostic information.

What medication is used for sacroiliitis?

Lifestyle and home remedies – Home treatments for sacroiliitis pain include:

Pain relievers you can get without a prescription. Medicines such as ibuprofen (Advil, Motrin IB, others) and acetaminophen (Tylenol, others) may help relieve the pain of sacroiliitis. Some of these medicines can cause stomach upset, or kidney or liver problems. Rest. Changing or not doing the activities that worsen pain might help. Using good posture is important. Ice and heat. Switching between ice and heat might help relieve sacroiliac pain.

Can sacroiliitis be cured?

What is the treatment for sacroiliac joint dysfunction? – You may be wondering, “can sacroiliac joint pain be cured?” Treatment for SI joint dysfunction is non-operative with very few exceptions. The most important thing to do is stop the activity causing your pain.

Ice or heat application to the injured areaOver the counter pain medicationPhysical adjustments by a chiropractor Brace for the lower backSteroid injections Physical therapy

Dr. Jasper says the average recovery time for a patient is four to six weeks, but that may vary depending on the patient’s overall health. Learn more about treatment options for neck and back pain at OrthoIndy.

Is sacroiliitis serious?

What complications are associated with sacroiliitis? – Left untreated, sacroiliitis causes a loss of mobility for some people. Untreated pain also can disrupt your sleep and lead to psychological conditions like depression, Sacroiliitis associated with ankylosing spondylitis can progress over time.

What are the symptoms of sacroiliac joint inflammation?

Symptoms – The most common symptoms for patients are lower back pain and the following sensations in the lower extremity: pain, numbness, tingling, weakness, pelvis/buttock pain, hip/groin pain, feeling of leg instability (buckling, giving way), disturbed sleep patterns, disturbed sitting patterns (unable to sit for long periods, sitting on one side), pain going from sitting to standing.

  1. Causes and Risk Factors While it is not clear how the pain is caused, it is thought that an alteration in the normal joint motion may be the culprit that causes sacroiliac pain.
  2. This source of pain can be caused by either: Too much movement (hypermobility or instability): The pain is typically felt in the lower back and/or hip and may radiate into the groin area.

Too little movement (hypomobility or fixation): The pain is typically felt on one side of the lower back or buttocks and can radiate down the leg. The pain usually remains above the knee, but at times pain can extend to the ankle or foot. The pain is similar to sciatica — or pain that radiates down the sciatic nerve — and is caused by a radiculopathy.

What type of arthritis affects the SI joint?

1. Osteoarthritis – More than 32 million Americans have symptoms of osteoarthritis (OA), 2 Centers for Disease Control and Prevention, National Center for Disease Prevention and Health Promotion. Osteoarthritis (OA). Last reviewed February 28, 2020. Accessed March 5, 2020.

https://www.cdc.gov/arthritis/basics/osteoarthritis.htm which is defined as a breakdown of cartilage in a joint. This breakdown can lead to complications that result in pain, swelling, and difficulty with movement. Given the vital role that the large SI joint plays in transferring upper body weight to the lower extremities, it is commonly affected in osteoarthritis.

People who have osteoarthritis in their SI joints often develop osteophytes or bone spurs around the joint, leading to pain and dysfunction. See What Is Hip Osteoarthritis?

What is SI joint syndrome ICD 9?

Management of sacroiliac joint disruption and degenerative sacroiliiti | CEOR Stacey J Ackerman, 1 David W Polly Jr, 2 Tyler Knight, 3 Tim Holt, 4 John Cummings 5 1 Covance Market Access Services Inc, San Diego, CA, USA; 2 University of Minnesota, Orthopaedic Surgery, Minneapolis, MN, USA; 3 Covance Market Access Services Inc, Gaithersburg, MD, USA; 4 Montgomery Spine Center, Orthopaedic Surgery, Montgomery, AL, USA; 5 Community Health Network, Neurosurgery, Indianapolis, IN, USA Introduction: Low back pain is common and originates in the sacroiliac (SI) joint in 15%–30% of cases.

Traditional SI joint disruption/degenerative sacroiliitis treatments include nonoperative care or open SI joint fusion. To evaluate the usefulness of newly developed minimally-invasive technologies, the costs of traditional treatments must be better understood. We assessed the costs of nonoperative care for SI joint disruption to commercial payers in the United States (US).

Methods: A retrospective study of claim-level medical resource use and associated costs used the MarketScan ® Commercial Claims and Encounters as well as Medicare Supplemental Databases of Truven Healthcare. Patients with a primary ICD-9-CM diagnosis code for SI joint disruption (720.2, 724.6, 739.4, 846.9, or 847.3), an initial date of diagnosis from January 1, 2005 to December 31, 2007 (index date), and continuous enrollment for ≥1 year before and 3 years after the index date were included.

Claims attributable to SI joint disruption with a primary or secondary ICD-9-CM diagnosis code of 71x.xx, 72x.xx, 73x.xx, or 84x.xx were identified; the 3-year medical resource use-associated reimbursement and outpatient pain medication costs (measured in 2011 US dollars) were tabulated across practice settings.

A subgroup analysis was performed among patients with lumbar spinal fusion. Results: The mean 3-year direct, attributable medical costs were $16,196 (standard deviation $28,592) per privately-insured patient (N=78,533). Among patients with lumbar spinal fusion (N=434), attributable 3-year mean costs were $91,720 (SD $75,502) per patient compared to $15,776 (SD $27,542) per patient among patients without lumbar spinal fusion (N=78,099).

  • Overall, inpatient hospitalizations (19.4%), hospital outpatient visits and procedures (14.0%), and outpatient pain medications (9.6%) accounted for the largest proportion of costs.
  • The estimated 3-year insurance payments attributable to SI joint disruption were $1.6 billion per 100,000 commercial payer beneficiaries.

Conclusion: The economic burden of SI joint disruption among privately-insured patients in the US is substantial, highlighting the need for more cost-effective therapies. Keywords: cost, epidural injection, lumbar spinal fusion surgery Introduction Low back pain is common, with 70%–85% of adults experiencing low back pain sometime during their lives.

The prevalence of chronic low back pain in the US ranges from 10%–45% – and has increased over the past few decades., The rising prevalence of chronic low back pain has led to increased costs including the direct costs of health care utilization and indirect costs of disability., Direct costs of low back pain in the US have been estimated between $12.2 billion and $90.6 billion based on a systematic review by Dagenais et al.

Back pain is a major contributor to increases in private insurance spending. In a national analysis of US private health insurance spending, back pain was the ninth largest contributor to increases in private health insurance spending between 1987 and 2002, with newborn/maternity care and cancer leading the spending increases.

  • Treated cases of back pain were the eighth most expensive medical condition, following cardiovascular disease, kidney problems, cancer, newborn/maternity care, heart disease, diabetes, and arthritis.
  • The sacroiliac (SI) joint is the generator of low back pain in 15%–30% of cases.
  • SI joint pain, described as SI joint disruption and/or degenerative sacroiliitis, has traditionally been treated with open SI joint arthrodesis surgery or nonoperative care.

Nonoperative care, which primarily treats the symptoms of SI joint pain, includes pain management and physical therapy. Pain management may entail prescription and nonprescription medications, radiofrequency ablation, and SI joint (epidural) injections.

Open SI joint arthrodesis surgery has been utilized when patients are refractory to nonoperative care. Unfortunately, open SI joint surgery is invasive, requiring bone harvesting and large incisions, and necessitates lengthy hospital stays and a long period of non-weight bearing. – Minimally invasive surgery (MIS) addresses the gap in the continuum of care between continued nonoperative care and invasive open arthrodesis surgery.

MIS has been shown to be safe and effective, and is being used with increasing frequency in the US., MIS offers the promise of a shorter inpatient or outpatient procedure with quicker recovery time., Because little has been published about the economic implications of nonoperative care among privately-insured patients with SI joint disruption and degenerative sacroiliitis, it is difficult to assess whether newer MIS techniques offer a viable treatment alternative among privately-insured patients who have failed nonoperative therapy.

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To help inform this discussion, the objective of this study was to determine the health resource utilization and costs of nonoperative care for SI joint disruption and degenerative sacroiliitis to commercial payers. Methods This research was performed according to guidelines (GPP2) established to minimize conflict of interest in pharmacoeconomic studies.

, A multispecialty panel comprising clinicians and methodologists (the coauthors of this paper) provided the framework for the economic analysis and made all decisions about the data analysis and interpretation of the results. The sponsor, SI-BONE, Inc (San Jose, CA, USA), did not participate in the data analysis, interpretation of the results, or writing of the manuscript.

SI-BONE, Inc, was provided a final version of the manuscript for informational purposes only. They did not provide comments or influence the content or writing of the manuscript. Study design and data sources In a retrospective economic analysis, medical resource use and associated costs to commercial payers for patients with SI joint disruption and/or degenerative sacroiliitis were assessed.

Commercially insured patients in the MarketScan ® Commercial Claims and Encounters (Commercial; Truven Health Analytics; Ann Arbor, MI, USA]) and Medicare Supplemental Databases (Truven Health Analytics) were included in the analysis. The MarketScan ® databases provide access to medical and prescription drug claims for privately-insured individuals in the US, including individuals with Medicare supplemental coverage.

The Commercial Database represents the inpatient and outpatient medical experience and outpatient prescription drug experience of several million individuals annually. These claims represent individuals covered by approximately 90 large employers and health plans. Insurance coverage is provided under a variety of fee-for-service and capitated health plans, including exclusive provider organizations, preferred provider organizations, point of service plans, indemnity plans, and health maintenance organizations.

The Medicare Supplemental Database contains the health care experience of individuals with Medicare supplemental insurance paid for by employers. Both the Medicare-covered portion of payment (represented as coordination of benefits amount) and the employer-paid portion are included in this database.

The MarketScan ® databases provide detailed reimbursement, use, and outcomes data for health care services performed in both inpatient and outpatient settings. The medical claims are linked to outpatient prescription drug claims and person-level enrollment data through the use of unique enrollee identifiers.

As no patient-identifying information was used in the analysis, institutional review board review or determination was not sought. All claims in the MarketScan ® database with an International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) code for SI joint disruption and/or degenerative sacroiliitis (ICD-9-CM diagnosis codes 720.2, 724.6, 739.4, 846.9, or 847.3) in the primary diagnosis field () were selected.

No attempt was made to exclude patients with a secondary diagnosis of inflammatory sacroiliitis (eg, ankylosing spondylitis, rheumatoid arthritis) because it has been the clinical experience of the authors that these patients still have substantial SI joint pain. For the base case analysis, ICD-9-CM code 721.3 (lumbosacral spondylosis) was not included but was included in the subsequent sensitivity analysis described below.

Medical claims were used to identify a primary diagnosis of SI joint disruption and/or degenerative sacroiliitis. The index date was identified as the initial date of diagnosis of SI joint disruption and/or degenerative sacroiliitis between January 1, 2005 and December 31, 2007.

Table 1 International classification of disease diagnosis codes used to identify degenerative sacroiliitis/sacroiliac joint disruption Note: a ICD-9-CM code 721.3 was excluded from the primary analysis and only included in the sensitivity analysis. Abbreviation: NOS, not otherwise specified.

Three years of commercial payer costs data were analyzed from the initial diagnosis of SI joint disruption and/or degenerative sacroiliitis. Because data prior to 2005 were not examined, the first mention of a diagnosis of SI joint disruption and/or degenerative sacroiliitis in the study period was not necessarily the first diagnosis for the patient (ie, the SI joint disruption and/or degenerative sacroiliitis might or might not have been newly diagnosed).

Three years of data were then extracted after the index date to investigate medical resource use and associated commercial payer costs (that is, insurance payments). Only patients with continuous enrollment for all 3 years were included in the analysis; this guaranteed that all patients in the analysis were alive for all 3 years, wherein they could have continued to be diagnosed and treated for SI joint disruption and/or degenerative sacroiliitis.

Due to the overlap of SI joint pathology and low back pain requiring spinal fusion, we conducted a subgroup analysis on SI joint disruption and/or degenerative sacroiliitis patients who underwent lumbar spinal fusion. Patients who underwent lumbar spinal fusion surgery were identified with ICD-9-CM procedure codes 81.05–81.08, 81.35–81.38, and 81.62–81.64 ().

This subgroup of patients underwent a lumbar spinal fusion in either the year prior to the index diagnosis of SI joint disruption and/or degenerative sacroiliitis (including data from 2004 for patients with an index diagnosis in 2005) or in the subsequent 3 years. A period of 1 year prior to the index diagnosis was used to define this subgroup for several reasons.

Specifically, patients who underwent lumbar spinal fusion within 1 year prior to receiving a diagnosis of SI joint disruption may represent either concomitant disease or potential misdiagnosis because this is a treatment for spinal, not SI joint, pathology.

  • These patients subsequently received a primary diagnosis of SI joint disruption and were treated with nonoperative care.
  • Of note, the period was limited to 1 year prior because it was not our intent to include patients with adjacent segment degeneration following spinal fusion.
  • Based upon the clinical experience of the authors, it is common for there to be a delay in diagnosis of SI joint disruption and/or degenerative sacroiliitis.

While it is unclear how often lumbar fusion is being performed on patients who really have SI pathology, it has been suggested that it is performed at least 5% of the time.

Table 2 International classification of disease procedure codes used to identify patients who underwent lumbar spinal fusion surgery a Note: a The following code algorithms were used: (81.62 AND ) or ( AND ).

Conversely, patients who underwent lumbar spinal fusion within 3 years after receiving a diagnosis of SI joint disruption may also represent concomitant disease or potential misdiagnosis. Whether misdiagnosis or multiple diagnoses, the lumbar spinal fusion subgroup analysis was conducted because lumbar spinal fusion patients with sacroiliac diagnoses may represent a group requiring greater medical resource utilization to treat than patients with the same diagnosis who have not had lumbar spinal fusion.

  • Construction of outcome variables Outcomes were investigated in the 3-year period following the index date.
  • SI joint disruption and/or degenerative sacroiliitis attributable costs were defined as claims with any of the following ICD-9-CM diagnosis codes in the primary or secondary diagnosis field: 71x.xx–73x.xx (disease of the musculoskeletal system and connective tissue, excluding 721.3) or 84x.xx (sprains and strains of joints and adjacent muscles).

Medical resource use and associated reimbursement were identified and evaluated for each subsequent year following the initial SI joint disruption and/or degenerative sacroiliitis diagnosis. Medical resource use was identified using Current Procedural Terminology codes that describe surgical procedures, hospital inpatient, hospital outpatient, physician office, and emergency room visits as well as other diagnostic tests and procedures including, but not limited to, physical therapy, chiropractic manipulation, prolotherapy, therapeutic injection (SI joint), trigger point injection, epidural steroid injection/selective nerve root block, facet block, pelvic x-ray, and magnetic resonance imaging (MRI)/computed tomography (CT) exams.

Outpatient pain medication costs were estimated as the costs of pharmacy claims for the following drug categories: salicylate analgesics/antipyretics, anti-inflammatory analgesics/antipyretics, opiate agonists, anti-depressants, benzodiazepines, anxiolytics, sedatives, and hypnotics. Total 3-year cumulative reimbursement (not including patient or supplemental plan contribution) was identified for each of these settings and for each medical resource and was reported in 2011 US dollars (USD).

Dollar amounts from 2009 and 2010 were converted to 2011 USD using the medical care component of the Consumer Price Index. Statistical analysis Analyses were performed for all patients with a diagnosis of SI joint disruption and/or degenerative sacroiliitis and for two subgroups: those with and without lumbar spinal fusion surgery.

Descriptive statistics were calculated from demographic characteristics and primary diagnoses at index date based on the initial index claim with a primary diagnosis of sacroiliitis, disorders of sacrum, SI subluxation, sprain/strain in SI region, or sprain/strain of sacrum. Direct medical resource utilization and commercial payer costs attributable to SI joint disruption were analyzed cumulatively over 3 years following initial diagnosis and across settings of care, including hospital inpatient, hospital outpatient, physician office, emergency department, and pharmacy costs.

All statistical analyses were performed using SAS version 9.1.3 (SAS Institute Inc, Cary, NC, USA). Results Demographics and primary diagnoses of overall study sample and subgroups In this commercial claims analysis, 78,533 patients were identified with SI joint disruption and/or degenerative sacroiliitis with continuous medical and pharmacy enrollment for at least 1 year before and 3 years after diagnosis ().

  1. Of these, 434 (0.6%) had lumbar spinal fusion surgery.
  2. The mean age of the overall population was 45.2 years () and most (74.1%) patients were insured through a preferred provider organization/point-of-service provider, followed by a health maintenance organization.
  3. The most common primary diagnoses were sacroiliac subluxation (33.9%), sacroiliitis (25.7%), and disorders of the sacrum (25.0%).

In the spinal fusion subgroup, the most common primary diagnoses were disorders of the sacrum (44.7%) and sacroiliitis (32.3% ).

Table 3 Patient attrition Notes: a Values represent the number of patients when ICD-9-CM code 721.3 is included for the sensitivity analysis; b SI joint disruption and/or degenerative sacroiliitis defined as: ICD-9-CM diagnosis codes 720.2, 724.6, 739.4, 846.9, or 847.3 in the primary diagnosis field; c the index date is defined as the calendar quarter of the earliest claim with a primary diagnosis code for degenerative sacroiliitis/SI joint disruption. Abbreviation: SI, sacroiliac.

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Table 4 Demographics and primary diagnosis of patients with SI joint disruption and/or degenerative sacroiliitis a Notes: Race was not included in the commercial database. a Degenerative sacroiliitis/SI joint disruption defined as: ICD-9-CM diagnosis codes 720.2, 724.6, 739.4, 846.9, or 847.3 in the primary diagnosis field; b sacroiliitis defined as: primary diagnosis code 720.2; c disorders of sacrum defined as: primary diagnosis code 724.6; d sacroiliac subluxation defined as: primary diagnosis code 739.4; e sprain/strain in sacroiliac region defined as: primary diagnosis code 846.9; f spain/strain of sacrum defined as: primary diagnosis code 847.3. Abbreviations: CDHP, consumer-driven health plan; HDHP, high-deductible health plan; POS, point-of-service provider; PPO, preferred provider organization; SD, standard deviation; SI, sacroiliac.

Medical resource utilization in overall study sample and subgroups The cumulative medical resource use over 3 years is presented in, In the overall group, over half of all patients had hospital outpatient visits; of those patients, there was an average of 4.7 visits per patient.

  1. Among the 8.7% of patients with a hospitalization, there was an average of 1.4 hospital inpatient stays per patient over 3 years.
  2. Overall, patients had an average of 8.0 outpatient physician office visits during the 3-year period.
  3. Among the 16.8% of patients with an emergency room visit, there was an average of 4.6 emergency room visits per patient over 3 years.

Over half of patients utilized physical therapy (with a mean of 17.1 claims per patient) and chiropractic manipulation (with a mean of 20.1 claims per patient) during the 3-year period. Prolotherapy, therapeutic injections, epidural steroid injections and selective nerve root blocks, acupuncture, and pelvic blocks were used less frequently.

Table 5 Three-year cumulative SI joint disruption and/or degenerative sacroiliitis-attributable a direct medical resource utilization per patient treated with nonoperative care b Notes: a Degenerative sacroiliitis/SI joint disruption attributable to direct medical resource utilization defined as claims with an ICD-9-CM diagnosis code of 71x.xx, 72x.xx, 73x.xx or 84x.xx in any diagnosis field; b mean numbers of claims calculated only among patients with at least one claim; c does not include lumbar spinal surgery performed prior to the index date; that is, prior to receiving a diagnosis of SI joint dysfunction; d physical therapy claims are identified using CPT codes: 90901, 95831, 95851, 95852, 97001, 97002, 97010, 97032, 97110, 97112, 97116, 97124, 97140, 97150, 97530, 97535; e chiropractic manipulation claims are identified using CPT codes: 98940-98943; f prolotherapy claims are identified using CPT codes: M0076, 20550-20552, 20999, 27096; g therapeutic injection claims for the SI joint are identified using CPT code 27096; h trigger point injection claims are identified using CPT codes: 20552, 20553; i epidural steroid injection/selective nerve root block claims are identified using CPT codes: 62310, 62311, 64479, 64484, 77003; j facet block claims are identified using CPT codes: 64490-64495; k pelvic X-ray claims are identified using CPT codes: 72170, 73500, 73510, 73520; l MR/CT exam claims are identified using CPT codes: 72131-3, 72141-2, 72146-9, 72156, 72158-9, 72190, 72192-8, 72202, 72220, 72265, 72270, 73525, 73542, 73550. Abbreviations: CPT, current procedural terminology; CT, computed tomography; MR, magnetic resonance; SD, standard deviation; SI, sacroiliac.

Compared to patients without lumbar spinal fusion, a greater percentage of patients with lumbar spinal fusion were hospitalized or received prolotherapy, therapeutic SI joint injections, epidural steroid injections/selective nerve root blocks, facet blocks, pelvic x-rays, and magnetic resonance/CT exams.

  • However, the mean number of claims was similar among patients who utilized those medical resources.
  • Patients with lumbar spinal fusion utilized hospital outpatient and emergency room visits at both a greater number and higher percentage than patients without lumbar spinal fusion.
  • Patients with lumbar spinal fusion had more outpatient pain medication claims per patient (148.8 pharmacy claims) than patients without lumbar spinal fusion (68.7 pharmacy claims) over the 3-year period, totaling approximately four versus two outpatient pain medication claims per patient per month, respectively.

Cost of nonoperative care in overall study sample and subgroups (commercial payer reimbursement) Nonoperative care is a resource-intense process that includes therapeutic interventions, medications, and physician’s office and clinic visits, in addition to hospitalizations.

The average cumulative 3-year direct medical costs (in 2011 USD) attributable to SI joint disruption and/or degenerative sacroiliitis was $16,196 (standard deviation $28,592) per patient for all patients. In the overall group, 48% of costs are accounted for by the cost categories shown in (hospitalizations, hospital outpatient visits, outpatient physician office visits, emergency room visits, and outpatient pain medications); the remaining costs primarily reflect physical therapy, chiropractic manipulation, prolotherapy, and diagnostic imaging.

Inpatient hospitalizations accounted for 19.4% of the total 3-year costs, hospital outpatient costs accounted for 14.0%, and outpatient pain medications accounted for 9.6% ().

Table 6 Three-year cumulative SI joint disruption and/or degenerative sacroiliitis-attributable a direct medical costs per patient treated with nonoperative care (2011 USD) b Notes: a Degenerative sacroiliitis/SI joint disruption attributable costs defined as claims with an ICD-9-CM diagnosis code of 71x.xx, 72x.xx, 73x.xx or 84x.xx in any diagnosis field; b mean costs are calculated only among patients with non-zero costs. Dollar amounts from 2009 and 2010 were converted to 2011 USD using the medical care component of the Consumer Price Index. Costs reported as $0 are due to rounding as values <$0.50 were rounded down to $0; c twenty-one patients were excluded from the overall and without lumbar spinal fusion groups due to zero costs; d total costs are defined as the sum of hospitalization, hospital outpatient, physician office, emergency room, outpatient pain medication, and other costs (eg, skilled nursing facility, hospice, home health, durable medical equipment, ambulatory surgery center, ambulance, independent lab, nursing home, or outpatient non-pain medication costs). Abbreviations: SD, standard deviation; SI, sacroiliac; USD, United States dollars.
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For patients with lumbar spinal fusion, average 3-year cumulative costs were higher ($91,720; SD $75,502) than for patients without lumbar spinal fusion ($15,776; SD $27,542). Among the lumbar spinal fusion group, approximately 80% of costs were accounted for by the cost categories shown in (hospitalizations, hospital outpatient visits, outpatient physician office visits, emergency room visits, and outpatient pain medications).

Hospitalizations accounted for over half of all costs for patients with lumbar spinal fusion (61.2% of total overall costs) compared to patients without lumbar spinal fusion (18.1% of total overall costs). Hospital outpatient costs represented 10.5% of total costs and outpatient pain medications represented 5.7% for patients with lumbar spinal fusion.

Cumulative costs, that is, commercial payer reimbursement, increased over the 3-year period for the overall group and subgroups (). For all patients, the cumulative costs increased from $6,191 in year 1, to $11,132 in year 2, and $16,196 in year 3. Costs were similar for patients without lumbar spinal fusion ($6,025 in year 1, $10,861 in year 2, and $15,776 in year 3).

Figure 1 Cumulative commercial payer costs of beneficiaries with SI joint disruption and/or degenerative sacroiliitis (2011 USD). Note: Each dot symbolizes the mean cumulative cost for the claims occurring in the year(s) subsequent to the earliest claim with a primary diagnosis of SI joint disruption and/or degenerative sacroiliitis (defined as ICD-9-CM diagnosis codes 720.2, 724.6, 739.4, 846.9, or 847.3). Abbreviations: SI, sacroiliac; USD, United States dollars.

Sensitivity analysis (inclusion of ICD-9-CM code 721.3) Sacroiliac joint pain is misdiagnosed as low back pain/lumbar spondylosis an estimated 14.5%–22.5% of the time,, suggesting substantial ambiguity and heterogeneity in the diagnosis of SI joint disruption.

To capture such patients, ICD-9-CM code 721.3 (described as lumbosacral spondylosis without myelopathy. Lumbar or lumbosacral: arthritis, osteoarthritis, or spondylarthritis) was included in a sensitivity analysis. In the original analysis excluding ICD-9-CM code 721.3, a total of 78,533 patients with SI joint disruption and/or degenerative sacroiliitis were identified in the database.

With the inclusion of ICD-9-CM code 721.3, 128,354 patients with SI joint disruption and/or degenerative sacroiliitis were identified (49,821 patients with a primary diagnosis code of 721.3). Of these patients, 1,550 (1.2%) had lumbar spinal fusion surgery and 126,804 (98.8%) did not have lumbar spinal fusion ().

With ICD-9-CM code 721.3 included, the mean 3-year cumulative costs of $22,436 per patient in the overall group and $21,520 per patient in the patients without lumbar spinal fusion group were higher than when ICD-9-CM code 721.3 was excluded ($16,196 per patient for the overall group and $15,776 per patient for the group without spinal fusion).

The costs per patient for patients with lumbar spinal fusion increased slightly with inclusion of ICD-9-CM code 721.3, ($97,388 including 721.3 versus $91,720 excluding 721.3; ). The distribution of costs across settings of care was similar to that of the original analysis.

Table 7 Sensitivity analysis of 3-year cumulative SI joint disruption and/or degenerative sacroiliitis-attributable a direct medical costs per patient treated with nonoperative care (2011 USD) including ICD-9-CM code 721.3 b Notes: a Degenerative sacroiliitis/SI joint disruption attributable costs defined as claims with an ICD-9-CM diagnosis code of 71x.xx, 72x.xx, 73x.xx, or 84x.xx in any diagnosis field; b mean costs are calculated only among patients with non-zero costs. Dollar amounts from 2009 and 2010 were converted to 2011 USD using the medical care component of the Consumer Price Index. Costs reported as $0 are due to rounding as values <$0.50 were rounded down to $0; c twenty-six patients were excluded from the overall and without lumbar spinal fusion groups due to zero costs; d total costs are defined as the sum of hospitalization, hospital outpatient, physician office, emergency room, outpatient pain medication, and other costs (eg, skilled nursing facility, hospice, home health, durable medical equipment, ambulatory surgery center, ambulance, independent lab, nursing home, or outpatient non-pain medication costs). Abbreviations: SD, standard deviation; SI, sacroiliac; USD, United States dollars.

Discussion This analysis evaluated the health care resource utilization and direct medical costs of nonoperative care of SI joint disruption and/or degenerative sacroiliitis to private payers to assess the economic burden of disease. The analysis found that mean 3-year cumulative costs for privately-insured patients with SI joint disruption and/or degenerative sacroiliitis were $16,196 per patient overall, $91,720 per patient among patients with lumbar spinal fusion, and $15,776 per patient among patients without lumbar spinal fusion.

The year-over-year attributable costs for SI joint disruption increased $5,399 per year, on average, for the overall group. The largest proportion of 3-year cumulative costs in the overall population was due to costs of inpatient hospitalizations (19%), hospital outpatient visits (14%), and outpatient pain medications (10%).

The results of the present study are similar to a systematic review of burden of chronic low back pain, where emergency room, inpatient, and outpatient hospital costs accounted for approximately 30% of costs (compared to 34% calculated here). As a point of reference, the attributable mean annual cost for SI joint disruption is similar to that for chronic low back pain, more than that for hypertension, and less than that for atherosclerosis and diabetes ().

Figure 2 Commercial payer attributable mean annual costs of SI joint disruption and/or degenerative sacroiliitis relative to other chronic conditions (2011 USD). Note: Previously published attributable mean annual costs for chronic conditions have been converted to 2011 USD using the medical care component of the Consumer Price Index. Abbreviations: SI, sacroiliac; USD, United States dollars.

This study demonstrates that costs associated with nonoperative care and management of privately-insured patients with SI joint pain steadily increased over a 3-year follow-up period. Over the 3-year period, the attributable cost (ie, insurance payments) is estimated to be $1.6 billion per 100,000 commercial payer beneficiaries diagnosed with SI joint disruption and/or degenerative sacroiliitis based on our overall cost of $16,196 per patient.

If the ICD-9-CM code 721.3 is included in the calculation, the 3-year attributable cost would increase to $2.2 billion per 100,000 commercial payer beneficiaries diagnosed with SI joint disruption and/or degenerative sacroiliitis ($22,436 per patient). Of note, this analysis focused on the direct medical costs of SI joint disruption and/or degenerative sacroiliitis to the commercial payer, which does not include indirect costs, such as impact on productivity, lost wages, and caregiver support.

The prevalence of SI joint disruption and/or degenerative sacroiliitis is 0.9% among these commercial payer beneficiaries (359,630 cases out of 39,134,113 total patients in the database), similar to the rate of 0.7% found in a national sample of commercially managed health care plans.

While only 25% of the patients with a primary diagnosis of SI joint disruption and/or degenerative sacroiliitis were continuously enrolled by the commercial payer for 3 years following diagnosis, this enrollment trend of 20%–25% annual turnover is commonly observed among commercial insurers, – suggesting that our findings may be generalizable to those beneficiaries who were not continuously enrolled for 3 years.

In contrast to a recent analysis performed in the Medicare population, the present study found that the younger, commercial payer population was hospitalized less frequently (8.7% of the commercial payer group over 3 years compared to 41.2% in the Medicare population over 5 years).

In the 3 years analyzed, a lower percentage of commercial payer beneficiaries incurred hospital outpatient visits (51.8% versus 82.2%), emergency room visits (16.8% versus 33.8%), and magnetic resonance/CT exam claims (30.3% versus 48.9%) compared to Medicare beneficiaries over 5 years. Within this analysis, a subgroup of patients who underwent lumbar spinal fusion surgery (0.6% of patients) incurred a greater economic burden (over five-fold the per-patient 3-year cumulative costs compared to patients without lumbar spinal fusion surgery ).

The higher cost of the lumbar spinal fusion patients is a concern, given that the rate of lumbar spinal fusion surgery has increased three-fold from 1998 to 2008 while laminectomy increased only 11% during that time period. Within the same time period, total hospital charges for lumbar spinal fusions increased 3.3-fold in an all-payer database containing data from 20% of community hospitals in the US.

  • Patients treated with lumbar spinal fusion are also more likely to develop subsequent SI joint degeneration and have poor outcomes, in addition to the higher costs associated with patients treated with lumbar spinal fusion surgery.
  • Lumbar spinal fusion may also increase the potential future costs.
  • Results from a prospective study showed that patients who received decompression and instrumented posterolateral lumbar/lumbosacral fusion more frequently developed degeneration of the SI joint (75.0%) compared to controls (38.2%).

In the present analysis, only 0.6% of the commercial payer beneficiaries had lumbar spinal fusion surgery. This figure may be underestimated as we only looked 1 year prior to and 3 years following the SI joint disruption diagnosis; therefore, the window may be too narrow to have captured all such patients.

  • Sembrano et al previously suggested that lumbar spinal fusion is being performed at least 5% of the time on patients who really have SI pathology.
  • In the present study in a commercial payer population, of the 434 patients in the lumbar spinal fusion subgroup, 17% underwent lumbar spinal fusion within 1 year prior to receiving a diagnosis of SI joint disruption and/or degenerative sacroiliitis, whereas the remaining 83% underwent lumbar spinal fusion following diagnosis of SI joint disease.

In a similar analysis of the Medicare population, 7% underwent lumbar spinal fusion surgery within 1 year prior to receiving a diagnosis of SI joint disruption and/or degenerative sacroiliitis, whereas 93% of patients underwent lumbar spinal fusion within 5 years of receiving a diagnosis of SI joint disease.

  1. The proportion of patients who undergo lumbar spinal fusion within 1 year prior to receiving a diagnosis of SI joint disruption appears to be higher than previously suggested and may represent patients with concomitant disease, new SI joint disease, or misdiagnosis.
  2. Limitations There are several limitations to this commercial payer claims data analysis.

First, SI joint dysfunction is often misdiagnosed or miscoded because there is no gold standard for SI joint pain diagnosis. – The extremely complex nature of spine and SI joint diagnostic testing presents a conundrum that we have tried to address using the extensive clinical experience of the authors of the present study in addition to subgroup and sensitivity analyses.

An algorithm to identify the patient cohort was developed with input from a multispecialty panel of clinicians and methodologists. While we acknowledge that the methodology is imperfect given that our study is based upon insurance claims that are dependent upon the coding entered by the treating clinician at the time of the encounter, the approach we have used is well-accepted in burden of disease research and allows policy makers to allocate resources based upon relative burden of disease.

Economic burden of illness studies for cardiovascular disease, and diabetes, as well as low back pain, have also used a similar methodology. The reliance on a coding system to identify patients with a clinical condition may lead to a lack of sensitivity and specificity in all retrospective claims analyses.

Only patients with an ICD-9-CM code for SI joint disruption and/or degenerative sacroiliitis in the primary diagnosis position were selected in order to increase the specificity of the cohort identification. While this approach is less sensitive, it allowed us more certainty that the patient was seeking care for the SI joint, rather than another condition.

Further, only claims with a primary or secondary ICD-9-CM spinal diagnosis code of 71x.xx, 72x.xx, 73x.xx, or 84x.xx were deemed attributable to SI joint disruption and/or degenerative sacroiliitis and selected for analysis in order to increase the specificity of the claims identification.

  • No attempt was made to exclude patients with a secondary diagnosis of inflammatory sacroiliitis (eg, ankylosing spondylitis, rheumatoid arthritis) because it has been the clinical experience of the authors that these patients still have substantial SI joint pain.
  • Next, it is possible that the costs associated with treatment of SI joint disruption may have been overestimated because it is not known for certain whether the medical resources reflected on such claims were incurred specifically for SI joint disruption.

Nevertheless, an exploratory analysis using Medicare claims data demonstrated that 75% of physician office visit costs were from spinal claims with a relevant provider specialty, eg, orthopedic surgery or neurosurgery rather than primary care, which provides more confidence that most costs were SI joint-related and not due to other conditions.

ConclusionThe economic burden of SI joint disruption and degenerative sacroiliitis among privately-insured patients in the US is substantial and highlights the need for more cost-effective therapies to treat this condition and reduce health care expenditures.AcknowledgmentWe thank Karen Spach, PhD, of Covance Market Access Services Inc, for her editorial contribution to this manuscript.Disclosure

This research was performed according to guidelines (GPP2) established to minimize conflict of interest in pharmacoeconomic studies., A multispecialty panel comprising clinicians and methodologists (the coauthors) provided the framework for the economic analysis and completed the data analysis and interpretation of the results.

This study was sponsored by SI-BONE, Inc. SI-BONE, Inc, did not participate in the data analysis, interpretation of the results, or writing of the manuscript. SI-BONE, Inc, was provided a final version of the manuscript for informational purposes only. It did not influence the content or writing of the manuscript.

SJA and TK are consultants to SI-BONE, Inc, through their employment with Covance. DWP Jr has not received any financial support from SI-BONE, Inc. DWP Jr receives research support from the Department of Defense, Orthopaedic Research and Education Foundation, Minnesota Medical Foundation, and Chest Wall and Spine Deformity Foundation.

  1. TH and JC are paid teaching and clinical research consultants for SI-BONE, Inc.
  2. Portions of this work have been accepted as an abstract to the 14 th Annual Conference of the International Society for the Advancement of Spine Surgery and will be presented as a poster.
  3. The authors report no other conflicts of interest in this work.

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Management of sacroiliac joint disruption and degenerative sacroiliiti | CEOR

What is the ICD-10 code for SI joint injection?

Group 1

Code Description
64451 INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; NERVES INNERVATING THE SACROILIAC JOINT, WITH IMAGE GUIDANCE (IE, FLUOROSCOPY OR COMPUTED TOMOGRAPHY)

Does sacroiliac pain ever go away?

What Are the Risk Factors and Complications of SI joint pain? – People of all ages, races, and genders can have SI joint pain. For younger people, the most common cause is a sports injury or accident. For older people, decline with age causes SI joint pain. For people designated female at birth, SI joint pain is more common during and after pregnancy. Other risk factors include:

Having legs that are different lengths. Being older. Having inflammatory arthritis. Having had spine surgery.

SI joint pain may go away on its own with rest. But it can also get worse and cause more pain. It can make it hard to do daily activities and exercises you love. This is why it’s good to see a doctor to learn the cause of your pain and how to treat it.

What makes sacroiliitis worse?

Symptoms – The pain of sacroiliitis most often occurs in the buttocks and lower back. It also can affect the legs, groin and even the feet. The pain can improve with movement. The following can make sacroiliitis pain worse:

Sleeping or sitting for a long time. Standing a long time. Having more weight on one leg than the other. Stair climbing. Running. Taking large steps when moving forward.

Does sacroiliitis pain go away?

Conclusion – The majority of patients with sacroiliitis have an excellent outcome. However, the recovery may take 2-4weeks. Recurrences are common if patients do not change their lifestyle. Some series report a recurrence rate of over 30%, Sacroiliitis is best managed by an interprofessional team that consists of a physical therapist, physician rheumatologist, and dietitian.

  • Be informed that the condition is benign and will improve with conservative measures.
  • Be encouraged to participate in a regular exercise program, lose weight, eat healthily and if applicable quit smoking,
  • Participate in a Home exercise program to help prevent deconditioning.

Is walking good for SI joint inflammation?

Going out for a daily walk can be a great way to help improve sacroiliac joint pain and your overall health. Consider starting slow with a gentle pace for a 20-30 minute walk.

Is walking bad for sacroiliac joint pain?

The sacroiliac joint (SI joint) is the joint that connects the spine to the pelvis and serves primarily for weight bearing. When the SI joint is painful, activities such as walking, sitting and standing can stress it, causing worsening pain. There are several common causes for SI joint pain:

Degenerative arthritis (osteoarthritis) from the bones rubbing against each other when they become damaged or worn away Inflammatory arthritis conditions such as ankylosing spondylitis Pregnancy, which places additional pressure on the bones or causes a change in the person’s gait Any condition that alters the normal walking pattern

What is the best sleeping position for sacroiliac pain?

Why Is My Sacroiliac Joint Pain Worse at Night? | WCM Center for Comprehensive Spine Care Jennifer Soo Hoo, M.D. A: Why is my sacroiliac joint pain worse at night? The sacroiliac (SI) joint is the joint that connects the hip bone with the sacrum at the base of the spinal column and lies between the large bones of the pelvis. (The pelvis is the group of bones that connects the trunk and the legs.) The SI joint is the largest joint in the body.

Strong ligaments around the joint help stabilize it, supporting the weight of the upper body and transferring the load between the spine and the legs. Because its primary function is stability, it’s a very stiff joint and has minimal ability to move. About 15 to 30% of low back pain can be attributed to dysfunction of the SI joint.

Your SI joint can be injured or degenerate as you age and cause low back or spine, pelvic, leg, or buttock pain. About SI joint pain and sleep, many patients say that it hurts when they move or change positions in bed. Why does that happen, and what are the best sleeping positions to avoid pain? The SI joint Motions such as getting up or turning over too quickly may irritate and compress the joint space to cause more pain. To reduce nighttime pain:

The most important thing you can do is to avoid lying on the side of the affected SI joint. When lying on the painful side, you’re increasing the stress through that joint. Try sleeping with the painful side facing up. When sleeping on your side, people often like putting a pillow between their legs to get the body in a more anatomical position (keeping your hips, pelvis, and spine aligned.) Lying on your back can be helpful because this reduces the pressure through the SI joint. Placing a pillow underneath your legs can also help relieve some of the pressure on the SI joint. Sleep on a supportive mattress that isn’t too soft or too hard. Many patients prefer flexible foam mattresses over coil mattresses and medium-firm or firmer mattresses. Softer mattresses do not provide you with the stability and support your body needs while you’re sleeping.

If you have any concerns about back pain or other spine conditions, contact at Weill Cornell Medicine. We are happy to help you find the best treatment available.

, physical medicine and rehabilitation specialist

This question was answered during the episode of Spine Time called “Sacroiliac Joint Pain — Getting to the Root of the Problem.” A recording of this webinar, held on December 1, 2021, is, To sign up for future episodes of Spine Time, where you can ask questions of our spine specialists,, More : Why Is My Sacroiliac Joint Pain Worse at Night? | WCM Center for Comprehensive Spine Care

What causes sacroiliac inflammation?

Sacroiliitis is linked to inflammatory arthritis of the spine. The inflammation may have different causes, including autoimmunity, microtrauma, exercise, and in some cases, infections. Sacroiliitis can also be associated with Crohn’s disease, inflammatory bowel disease, ulcerative colitis, and gout.

How does sacroiliac joint get inflamed?

Sacroiliac joint pain – Mayo Clinic Orthopedics & Sports Medicine The sacroiliac joints are the joints where the lower part of the spine (sacrum) connects to the pelvis. There are two sacroiliac joints, one on each side, with ligaments in each joint that hold the bones together.

  • Sacroiliac joint pain can be difficult to diagnose as other conditions can cause similar symptoms.
  • Sacroiliac joint pain is most commonly felt in the low back and buttock but can also be referred into the thigh and leg.
  • If numbness and tingling or weakness is present, an alternative diagnosis should be considered.

Sacroiliac pain can be aggravated with prolonged sitting or standing, standing on one leg, stair climbing, going from sit to stand, and with running. Potential causes of sacroiliac pain include arthritis, traumatic injury, pregnancy and post-partum, systemic inflammatory conditions, and infection.

  1. Other potential contributors include spinal scoliosis, leg length discrepancy, and previous lumbar spine fusion.
  2. Sometimes, there is no clear cause for sacroiliac pain.
  3. The diagnosis of sacroiliac pain starts with a careful history and physical examination, which helps to distinguish sacroiliac pain from other potential etiologies.

Imaging is often recommended, starting with plain radiographs (X-rays). Sometimes your provider will recommend more advanced imaging, including a CT scan or MRI. If the diagnosis is not clear, a diagnostic (anesthetic) injection into the sacroiliac joint can provide valuable diagnostic information.

What are the symptoms of sacroiliac joint inflammation?

Symptoms – The most common symptoms for patients are lower back pain and the following sensations in the lower extremity: pain, numbness, tingling, weakness, pelvis/buttock pain, hip/groin pain, feeling of leg instability (buckling, giving way), disturbed sleep patterns, disturbed sitting patterns (unable to sit for long periods, sitting on one side), pain going from sitting to standing.

  • Causes and Risk Factors While it is not clear how the pain is caused, it is thought that an alteration in the normal joint motion may be the culprit that causes sacroiliac pain.
  • This source of pain can be caused by either: Too much movement (hypermobility or instability): The pain is typically felt in the lower back and/or hip and may radiate into the groin area.

Too little movement (hypomobility or fixation): The pain is typically felt on one side of the lower back or buttocks and can radiate down the leg. The pain usually remains above the knee, but at times pain can extend to the ankle or foot. The pain is similar to sciatica — or pain that radiates down the sciatic nerve — and is caused by a radiculopathy.

What does sacroiliac pain feel like?

Sacroiliac (SI) joint issues can occur with osteoarthritis, injury, or other health conditions. They can cause either sharp or tingling pain. You may experience SI joint pain as a sharp, stabbing pain that radiates from your hips and pelvis up to the lower back and down to the thighs.

  • Sometimes it may feel numb or tingly, or as if your legs are about to buckle.
  • The SI joints are to blame in 15 to 30 percent of people with chronic lower back pain.
  • About 80 percent of adults in the United States will experience lower back pain during their lives.
  • Lower back pain is a leading cause of missed workdays and the most common cause of job-related disability.

Your sacroiliac joints are located where the sacrum and ilium meet in the lower back. The sacrum is the triangle-shaped bone near the bottom of your spine, just above your coccyx, or tailbone. The ilium, one of the three bones that make up your hip bones, is the uppermost point of your pelvis.

  1. The SI joints support the weight of your body, distributing it across the pelvis.
  2. They act as a shock absorber and reduce the pressure that movement puts on your spine.
  3. The bones of the SI joints are uneven and fit together like a puzzle.
  4. These edges help them stay in alignment.
  5. All of the bones in the SI joints are connected by muscles and extra-strong ligaments, which add stability and allow for limited movement.

Though minimal, this movement is necessary for remaining upright and even for giving birth, The joint bones themselves are also lined with a protective layer of cartilage. Spaces between the bones of the SI joints are filled with fluid, which provides lubrication.

  • These spaces are filled with free nerve endings, which send pain signals to the brain.
  • When the bones in the SI joint are out of alignment, or when the cartilage breaks down and causes the bones to touch, it can be painful.
  • Inflammation of one or both SI joints is called sacroiliac joint dysfunction, or sacroiliitis,

Sacroiliitis can be caused by a number of conditions, including the following.