Anatomic Rotator Cuff Repair With Dual-Layer Fixation: A Knotless Technique

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Biomedical Engineering

Background:

• Arthroscopic rotator cuff repair (ARCR) is increasingly common, with over 500,000 procedures annually in the US.
• Delaminated rotator cuff tears are larger, have poorer prognoses, and are less likely to heal.
• Dual-layer repair addresses delamination by separately repairing deep and superficial cuff layers.

Purpose of the Study:

• To describe and evaluate the dual-layer fixation technique for arthroscopic rotator cuff repair.
• To highlight the benefits of this technique for delaminated rotator cuff tears.

Main Methods:

• A knotless dual-layer fixation technique is employed for rotator cuff repair.
• This method allows separate, anatomic reduction of medial (deep) and lateral (superficial) cuff fibers.
• The technique avoids additional anchors and minimizes suture material.

Main Results:

• Independent fixation of the deep capsular layer showed improved clinical and radiographic outcomes.
• This dual-layer technique demonstrated superiority over the traditional en masse suture bridge method.

Conclusions:

• Dual-layer fixation is a technically simple, knotless technique for ARCR.
• It minimizes suture bulk, adds fixation points, and enables precise reduction of articular fibers.
• This approach may enhance healing rates and clinical results in ARCR, particularly for delaminated tears.