Margin Convergence in Rotator Cuff Repair: The Shoelace Technique

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Biomechanical Engineering

Background:

• Margin convergence is a technique to protect rotator cuff repairs in massive U-type tears.
• Existing side-to-side repair methods can lead to challenging dog-ear deformities.
• Favorable outcomes have been reported for margin convergence techniques in literature.

Purpose of the Study:

• To introduce a single-suture convergence technique using a shoelace weaving method.
• To evaluate the technique's efficacy in reducing dog-ear deformity and margin strain.
• To assess the technique's applicability in transosseous-equivalent rotator cuff repair.

Main Methods:

• A novel single-suture convergence technique employing a shoelace weaving pattern was developed.
• The technique was applied to patients with large or massive rotator cuff tears.
• The method was assessed for its ability to decrease dog-ear deformity and margin strain.

Main Results:

• The shoelace weaving technique appears to decrease the incidence of dog-ear deformity.
• This method effectively reduces margin strain at the repair site.
• The technique is compatible with current transosseous-equivalent rotator cuff repair configurations.

Conclusions:

• The single-suture shoelace convergence technique offers a simple and reproducible solution for managing massive rotator cuff tears.
• This method addresses the challenge of dog-ear deformity associated with side-to-side repairs.
• It provides a promising approach to enhance rotator cuff repair integrity and outcomes.