Evidence map›Paper›PMID 39611981›Full record

ArticleInternational orthopaedics2025

Baseplate version in reverse shoulder arthroplasty: does excessive retroversion or anteversion affect functional activities of daily living?

Mihir M Sheth, Corey J Schiffman, Anastasia J Whitson, Frederick A Matsen, Jason E Hsu

Abstract read
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Mihir M ShethDepartment of Orthopedics and Sports Medicine, Investigation Performed at the University of Washington, 1959 NE Pacific Street, Box 356500, Seattle, WA, USA.ORCID 0000-0002-6262-3305
Corey J SchiffmanDepartment of Orthopedics and Sports Medicine, Investigation Performed at the University of Washington, 1959 NE Pacific Street, Box 356500, Seattle, WA, USA.ORCID 0000-0002-5891-5196
Anastasia J WhitsonDepartment of Orthopedics and Sports Medicine, Investigation Performed at the University of Washington, 1959 NE Pacific Street, Box 356500, Seattle, WA, USA.ORCID 0000-0002-4426-6164
Frederick A MatsenDepartment of Orthopedics and Sports Medicine, Investigation Performed at the University of Washington, 1959 NE Pacific Street, Box 356500, Seattle, WA, USA.ORCID 0000-0002-6465-4826
Jason E HsuDepartment of Orthopedics and Sports Medicine, Investigation Performed at the University of Washington, 1959 NE Pacific Street, Box 356500, Seattle, WA, USA. jehsu@uw.edu.ORCID 0000-0002-1411-3482

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWhile bone grafting and augmented components can help restore reverse shoulder arthroplasty (RSA) baseplate version close to neutral, the indication for version correction in RSA is unclear. The purpose of this study was to compare the clinical outcomes of RSA baseplates in high degrees of retroversion and anteversion to components in more neutral version.

methodsPatients who underwent RSA with minimum two year follow-up were identified from an institutional registry. An RSA system with a glenosphere that is two-thirds of a sphere was utilized. Post-operative radiographs were used to determine baseplate version, and patients were grouped into four categories: ≥ 10 degrees (moderate to severe anteversion; n = 14), 10 to -10 degrees (neutral; n = 69), -10 to -20 (moderate retroversion; n = 25), and ≤ -20 degrees (severe retroversion; n = 7). The outcomes of interest were ability to perform functions requiring internal rotation, external rotation and cross-body adduction, as well as complications and revisions.

resultsThere were no differences in final Simple Shoulder Test (SST), final American Shoulder and Elbow Surgeons score (ASES) or change in SST from pre- to post-operative across the four version groups. There was no linear correlation between baseplate version and final SST. There were no statistically significant differences in difficulty performing tasks related to internal rotation, external rotation, and cross-body adduction among the four baseplate version groups; however, patients with moderate to severe anteversion had a greater frequency of difficulty putting on a coat (86%) compared to patients with neutral version (42%), moderate retroversion (45%) and severe retroversion (0%) (p = 0.021). There were no differences in rates of complications and revisions across the four groups.

conclusionThis study did not find evidence that high values of baseplate retroversion or anteversion were associated with inferior patient reported outcomes or functional rotation after reverse total shoulder arthroplasty. LEVEL OF EVIDENCE: Level 3, retrospective comparative study.

Indexed as

Activities of Daily LivingArthroplasty, Replacement, ShoulderShoulder JointShoulder ProsthesisAgedAged, 80 and overFemaleHumansMaleMiddle AgedProsthesis DesignRange of Motion, ArticularRecovery of FunctionRetrospective StudiesTreatment OutcomeActivities of daily livingAugmentsBaseplate versionFunctional motionImpingementOutcomesReverse total shoulder arthroplasty

Identifiers

PMID39611981

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.