Evidence map›Paper›PMID 40632230›Full record

ArticleArchives of orthopaedic and trauma surgery2025

Multiple sclerosis is associated with increased shoulder dislocations and aseptic loosening following reverse shoulder arthroplasty: a propensity matched analysis.

Adam M Gordon, Jake Schwartz, Ron Gilat, Kevin K Kang, Jack Choueka, Ramin Sadeghpour

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Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Adam M GordonBoston University, Boston, USA. agordon55@gmail.com.
Jake SchwartzMaimonides Medical Center, New York, USA.
Ron GilatMaimonides Medical Center, New York, USA.
Kevin K KangMaimonides Medical Center, New York, USA.
Jack ChouekaMaimonides Medical Center, New York, USA.
Ramin SadeghpourMaimonides Medical Center, New York, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMultiple sclerosis (MS) is a chronic neurological condition characterized by muscle spasticity, which may influence the outcomes of reverse shoulder arthroplasty (RSA) for glenohumeral osteoarthritis or proximal humerus fractures. It is unclear whether implant complications and revision rates are increased in patients with MS. The aim was to compare 2-year implant complications and 90- day costs in MS patients undergoing RSA.

methodsA retrospective analysis was performed using the PearlDiver database (2010-2022). MS patients (N = 764) who underwent RSA either for glenohumeral osteoarthritis or proximal humerus fractures were identified and matched to patients without MS (N = 3,682) in a 1:5 ratio by age, sex, and comorbidities. Two-year implant complications, including shoulder dislocations, aseptic loosenings, periprosthetic joint infections (PJIs), periprosthetic fractures, and all-cause shoulder arthroplasty revisions, were compared between the two groups using multivariable logistic regressions. Costs were evaluated over a 90 day episode of care interval. P values < 0.05 were significant.

resultsThe proportion of patients who underwent RSA for proximal humerus fracture was not different between patients with and without MS (12.4% vs. 15.1%; P = 0.063). Patients had no difference in overall comorbidity burden (ECI: 8.1 vs. 8.0; P = 0.39). At 2 years, MS patients were associated with significantly higher rates and odds of shoulder dislocations (OR: 1.94, P = 0.006) and aseptic loosenings (OR: 1.93, P = 0.044). There was no significant difference in all-cause revisions (OR: 1.39, P = 0.183), PJIs (OR: 0.72, P = 0.326), or periprosthetic fractures (OR: 1.20, P = 0.773) compared to controls. Patients with MS incurred significantly higher 90 day episode of care costs: $11,437 vs. $10,321; P = 0.0002.

conclusionsMS patients undergoing RSA were associated with significantly higher rates of shoulder dislocations and aseptic loosening compared to controls. Additionally, MS patients incurred significantly higher 90-day episode of care costs. These findings underscore the need for careful perioperative planning and long-term monitoring in MS patients undergoing RSA. LEVEL OF EVIDENCE: III.

Indexed as

Arthroplasty, Replacement, ShoulderMultiple SclerosisOsteoarthritisPostoperative ComplicationsProsthesis FailureShoulder DislocationShoulder FracturesAgedFemaleHumansMaleMiddle AgedPropensity ScoreReoperationRetrospective StudiesMultiple sclerosisProximal humerus fractureReverse shoulder arthroplastyShoulder dislocations

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.