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Clin Shoulder Elbow > Volume 19(1); 2016 > Article
Clinics in Shoulder and Elbow 2016;19(1):51-58.
DOI:    Published online March 31, 2016.
Biomechanical Test for Repair Technique of Full-thickness Rotator Cuff Tear
Chae Ouk Lim, Kyoung Jin Park
Department of Orthopaedic Surgery, Chungbuk National University College of Medicine, Cheongju, Korea.
Received: 27 September 2015   • Revised: 22 December 2015   • Accepted: 14 January 2016
The arthroscopic rotator cuff repair is now considered a mainstream technique with highly satisfactory clinical results. However, concerns remain regarding healing failures for large and massive tears and high revision rate. In recent decades, various repair strategies and construct configurations have been developed for rotator cuff repair with the understanding that many factors contribute to the structural integrity of the repaired construct. The focus of biomechanical test in arthroscopic repair has been on increasing fixation strength and restoration of the footprint contact characteristics to provide early rehabilitation and improve healing. These include repaired rotator cuff tendon-footprint motion, increased tendon-footprint contact area and pressure, and tissue quality of tendon and bone. Recent studies have shown that a transosseous tunnel technique provides improved contact area and pressure between rotator cuff tendon and insertion footprint, and the technique of using double rows of suture anchors to recreate the native footprint attachment has been recently described. The transosseous equivalent suture bridge technique has the highest contact pressure and fixation force. In this review, the biomechanical tests about repair techniques of rotator cuff tear will be reviewed and discussed.
Key Words: Biomechanical test; Rotator cuff repair; Full-thickness rotator cuff tear; Transosseous equivalent repair


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