Current Concepts in Rotator Cuff Repair Techniques: Biomechanical, Functional, and Structural Outcomes

Area of Science:

• Orthopaedic Surgery
• Sports Medicine
• Biomechanical Engineering

Background:

• Double-row (DR) rotator cuff repair demonstrates superior footprint restoration and biomechanics compared to single-row (SR) repair.
• Transosseous-equivalent (TOE) techniques present biomechanical benefits over traditional DR, including enhanced footprint contact and failure strength.

Purpose of the Study:

• To critically analyze comparative biomechanical and clinical studies of SR, DR, and TOE rotator cuff repair techniques.
• To evaluate evidence regarding healing rates and functional outcomes across different rotator cuff repair methods.
• To inform orthopaedic surgeons on selecting optimal, cost-effective rotator cuff repair strategies.

Main Methods:

• Review of Level 1 and 2 evidence-based studies published in the last decade.
• Comparative analysis of biomechanical data (footprint contact, pressure, failure strength).
• Assessment of clinical outcomes, including retear rates and functional scores.

Main Results:

• DR repair shows lower retear rates than SR, though short-term clinical outcomes are often similar.
• TOE techniques indicate potential for improved healing in large/massive tears compared to SR and DR.
• Limited high-quality clinical data exists for comparing different DR configurations or long-term functional differences.

Conclusions:

• While DR and TOE techniques offer biomechanical advantages, definitive clinical superiority requires further investigation.
• Surgeons must weigh available biomechanical and clinical evidence to choose the most appropriate rotator cuff repair technique.
• Long-term functional outcomes and retear rates necessitate consideration beyond short-term follow-up in comparative studies.