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Related Experiment Video

Updated: Sep 14, 2025

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.4K

Baseplate coverage in reverse total shoulder arthroplasty: a systematic review.

Caleb D Puckett1, Matthew S Gwilt1, Kevin W Collon1,2

  • 1Wake Forest University School of Medicine, Winston-Salem, NC, USA.

JSES Reviews, Reports, and Techniques
|July 23, 2025
PubMed
Summary

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Shoulder & elbow·2026

Optimal glenoid baseplate coverage in reverse total shoulder arthroplasty (rTSA) is crucial for stability. Studies suggest 75% coverage ensures adequate fixation, though some indicate 67% may suffice, highlighting the need for further research.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Biomechanics

Background:

  • Reverse total shoulder arthroplasty (rTSA) involves placing a glenoid baseplate.
  • The degree of contact between the baseplate and glenoid bone is critical.
  • Understanding this contact area's implications is essential for surgical success.

Purpose of the Study:

  • To qualitatively review literature on biomechanical and clinical implications of glenoid baseplate-bone contact in rTSA.
  • To determine optimal baseplate coverage for stability and fixation.

Main Methods:

  • Systematic review adhering to PRISMA guidelines.
  • Searched PubMed, EMBASE, and Cochrane databases (June 2024).
  • Included biomechanical and clinical studies on baseplate coverage and surgical technique.
Keywords:
BaseplateBone lossGlenoid defectGlenoid fixationGlenosphereReverse arthroplastyReverse shoulderReverse total

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Related Experiment Videos

Last Updated: Sep 14, 2025

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The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
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Main Results:

  • 8 studies met inclusion criteria (6 biomechanical, 2 case series).
  • Less than 50%-80% coverage may require augmentation for stability.
  • Biomechanical studies showed instability from 25%-60% coverage.

Conclusions:

  • A definitive minimum baseplate coverage is not yet established.
  • 75% or greater coverage ensures adequate "time zero" fixation.
  • Coverage as low as 67% may potentially provide adequate fixation.