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Related Experiment Video

Updated: May 18, 2026

Knotless Independent Double-Row Repair and Biceps Augmentation for Anterosuperior Rotator Cuff Tears
05:25

Knotless Independent Double-Row Repair and Biceps Augmentation for Anterosuperior Rotator Cuff Tears

Published on: January 23, 2026

Technique for margin convergence in rotator cuff repair.

Michael K Shindle1, Shane J Nho, Denis Nam

  • 1Department of Orthopedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA ; Summit Medical Group, 95 Madison Avenue, Morristown, NJ 07960 USA.

HSS Journal : the Musculoskeletal Journal of Hospital for Special Surgery
|October 2, 2012
PubMed
Summary

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Margin convergence is an effective surgical technique for U-shaped rotator cuff tears, significantly improving patient shoulder function and pain. This arthroscopic approach shows promising results, with many tears healing and function restored after two years.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Musculoskeletal Imaging

Background:

  • Rotator cuff tears, particularly U-shaped tears, present challenges in surgical repair due to tissue mobilization difficulties.
  • Arthroscopic techniques aim to improve outcomes for rotator cuff injuries while minimizing invasiveness.

Purpose of the Study:

  • To describe the margin convergence technique for U-shaped rotator cuff tears.
  • To evaluate the clinical and ultrasonographic outcomes of this procedure with a minimum 2-year follow-up.

Main Methods:

  • Prospective enrollment of patients undergoing arthroscopic margin convergence for rotator cuff tears.
  • Outcome assessment included physical examination, muscle testing, American Shoulder and Elbow Surgeons (ASES) scores, and postoperative ultrasonography.
Keywords:
margin convergencerotator cuffshoulder arthroscopy

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Last Updated: May 18, 2026

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  • Follow-up was conducted at a minimum of 2 years post-surgery.

    • Main Results:

    • Significant improvements were observed in ASES scores (50.0 to 83.3), active forward elevation (156.2° to 168.0°), and active external rotation (54.4° to 57.1°).
    • Muscle strength increased significantly from baseline to 1 year post-surgery (P=0.048).
    • Postoperative ultrasound revealed a 46.2% healing rate for rotator cuff tears at 2 years.

    Conclusions:

    • Margin convergence is a valuable arthroscopic technique for managing U-shaped rotator cuff tears, especially those with limited mobility.
    • The procedure leads to significant improvements in shoulder function, pain reduction, and tear healing.