Evaluation of footprint contact area and pressure using a triple-row modification of the suture-bridge technique for rotator cuff repair.
BACKGROUND
Studies suggest that arthroscopic repair techniques may have high recurrence rates for larger rotator cuff tears. A more anatomic repair may improve the success rate when performing arthroscopic rotator cuff repair. We hypothesized that a triple-row modification of the suture-bridge technique for rotator cuff repair would result in significantly more footprint contact area and pressure between the rotator cuff and the humeral tuberosity.


METHODS
Eighteen ovine infraspinatus tendons were repaired using 1 of 3 simulated arthroscopic techniques: a double-row repair, the suture-bridge technique, and a triple-row repair. The triple-row repair technique is a modification of the suture-bridge technique that uses an additional reducing anchor between the medial and lateral rows. Six samples were tested per group. Pressure-indicating film was used to measure the footprint contact area and pressure after each repair.


RESULTS
The triple-row repair resulted in significantly more rotator cuff footprint contact area and contact pressure compared with the double-row technique and the standard suture-bridge technique. No statistical difference in contact area or contact pressure was found between the double-row technique and the suture-bridge technique.


CONCLUSIONS
The triple-row technique for rotator cuff repair results in significantly more footprint contact area and contact pressure compared with the double-row and standard suture-bridge techniques. This more anatomic repair may improve the healing rate when performing arthroscopic rotator cuff repair.
Andrews Orthopaedic & Sports Medicine Center, Gulf Breeze, FL, USA. rostrander@bellsouth.net
Roger V
RV
Ostrander
Bart I
BI
McKinney
D000818:Animals; D001696:Biomechanical Phenomena; D002102:Cadaver; D004195:Disease Models, Animal; D006811:Humerus / Q000601:surgery*; D011312:Pressure; D011474:Prosthesis Design; D017006:Rotator Cuff / Q000503:physiopathology / Q000601:surgery*; D000070636:Rotator Cuff Injuries; D012756:Sheep; D053441:Suture Anchors; D013536:Suture Techniques / Q000295:instrumentation*; D013537:Sutures; D013708:Tendon Injuries / Q000503:physiopathology / Q000601:surgery*