Evidence map›Paper›PMID 41333672›Full record

ArticleJSES international2026

Clinical outcomes of modular segmental megaprosthesis for revision shoulder arthroplasty with severe proximal humerus bone loss at a minimum two year follow-up.

Cameron Vauclin, Aaron Sheppard, Patrick Massey, Jaxon Adkins, Mark Callanan, Mario Lobao, R Shane Barton

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Article in JSES international, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Cameron VauclinDepartment of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA.
Aaron SheppardLouisiana State University Health Sciences Center Shreveport, School of Medicine, Shreveport, LA, USA.
Patrick MasseyDepartment of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA.
Jaxon AdkinsLouisiana State University Health Sciences Center Shreveport, School of Medicine, Shreveport, LA, USA.
Mark CallananDepartment of Orthopaedic Surgery, Willis Knight Health System, Shreveport, LA, USA.
Mario LobaoDepartment of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA.
R Shane BartonDepartment of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Significant proximal humerus bone loss poses a challenge on the outcomes of traditional reverse shoulder arthroplasty implants. Modular Segmental Megaprosthesis (MSM) offers a potential solution to shoulder reconstruction without the need for allograft. However, clinical outcomes of MSM are restricted to case reports and small case series with limited follow-up. Methods: An Institutional Joint Registry Database was used to identify revision shoulder arthroplasty patients using MSM. A retrospective review evaluated implant survivorship, pain relief and functional outcomes at a minimum of 2-year follow-up. Results: Between 2014 and 2022, a total of 28 patients with significant proximal humerus bone loss who underwent revision shoulder arthroplasty reconstruction using MSM were included in this study. At a minimum of 2-year follow-up, the MSM implant survivorship was 85.7% (24 out of 28). Pain level decreased from 7 out of 10 preoperatively to 2 at the 2-year follow-up mark ( Conclusion: The MSM presented a good 2-year survivorship. It demonstrated significant improvement in pain and function in patients with proximal humerus bone loss that underwent arthroplasty revision. These findings support the use of MSM as a salvage procedure in complex shoulder reconstructions.

Indexed as

EndoprosthesisMegaprosthesisModular prosthesisProximal humeral bone lossProximal humerus reconstructionReverse shoulder arthroplastyRevision

Identifiers

PMID41333672
PMCPMC12666345

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