Evidence map›Paper›PMID 35252921›Full record

ArticleJSES international2022

Rate of improvement in shoulder strength after anatomic and reverse total shoulder arthroplasty.

Kevin A Hao, Thomas W Wright, Bradley S Schoch, Jonathan O Wright, Ethan W Dean, Aimee M Struk, Joseph J King

Open access · goldAbstract read
In one paragraph

Article in JSES international, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.9field-weighted citation impact, top 8% of its field
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

10 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Impact of systemic lupus erythematosus on adverse outcomes and readmission after total shoulder arthroplasty: a Nationwide Readmission Database analysis 2016-2020.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2025
    Article
  5. Article
  6. Article
  7. Outcomes of Reverse Total Shoulder Arthroplasty for Proximal Humerus Fracture Versus Rotator Cuff Arthropathy.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2023
    Article
  8. Article
  9. Article
  10. 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

7 authors at 2 institutions in 1 country.

Kevin A HaoCollege of Medicine, University of Florida, Gainesville, FL, USA.
Thomas W WrightDepartment of Orthopaedics and Rehabilitation, University of Florida, Gainesville, FL, USA.
Bradley S SchochDepartment of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL, USA.
Jonathan O WrightDepartment of Orthopaedics and Rehabilitation, University of Florida, Gainesville, FL, USA.
Ethan W DeanDepartment of Orthopaedics and Rehabilitation, University of Florida, Gainesville, FL, USA.
Aimee M StrukDepartment of Orthopaedics and Rehabilitation, University of Florida, Gainesville, FL, USA.
Joseph J KingDepartment of Orthopaedics and Rehabilitation, University of Florida, Gainesville, FL, USA.
University of Florida · USWinnMed · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe rate at which patients regain shoulder strength after anatomic and reverse total shoulder arthroplasty (TSA) is unknown. In this study, we aimed to quantify differences in the timeline during which patients gained shoulder strength after primary anatomic and reverse TSA.

methodsWe retrospectively reviewed prospectively collected data from 374 shoulders after primary anatomic TSA (aTSA) and 601 shoulders after primary reverse TSA (rTSA). Postoperative improvement in external rotation (ER) strength and forward elevation (FE) strength from baseline was assessed at 3 months, 6 months, 1 year, and 2 years. Percent change in mean shoulder strength between each time point was determined for anatomic and reverse groups separately. A handheld dynamometer was used to assess ER strength with the involved shoulder in 0° ER, 0° abduction, and the elbow in 90° flexion and FE strength with the involved shoulder in the scapular plane at 30° of flexion and 30° of abduction.

resultsBoth aTSA and rTSA groups ceased to have statistically significant gains in FE strength after 1 year postoperatively. In contrast, patients continued to have statistically significant gains in ER strength between 1 year and 2 years postoperatively after rTSA (

conclusionPatients gain ER strength earlier and FE strength later after aTSA compared with rTSA. Most gains in strength occurred in the first year. However, statistically significant gains in shoulder ER strength in the rTSA group continued between 1 year and 2 years postoperatively, suggesting that 2-year follow-up may be inadequate to capture the full benefits of rTSA on shoulder strength. The results of this study provide insight into the timeline of strength recovery after aTSA and rTSA that will help inform patient counseling and future study design.

Indexed as

External rotationForward elevationOutcomeSupraspinatusTime

Identifiers

PMID35252921
PMCPMC8888170
OpenAlexW4206396767

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.