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- Title
Contact area and pressure in suture bridge rotator cuff repair using knotless lateral anchors.
- Authors
Tompkins, Marc; Monchik, Keith; Plante, Matthew; Fleming, Braden; Fadale, Paul
- Abstract
Purpose: To evaluate whether the use of knotless lateral anchors in a suture bridge construct produces better contact area and pressure parameters than a suture bridge construct with standard lateral anchors that require knots or a double-row repair. The hypothesis was that knotless lateral anchors would produce better contact area and pressure parameters than the other two constructs. Methods: A total of fifteen matched pairs of cadaveric shoulders were divided into three groups. In Group 1, a suture bridge using knotless anchors for the lateral row was performed on five shoulders. A suture bridge using standard lateral row anchors that require knots was performed on the contralateral shoulders. In Group 2, suture bridge with knotless lateral row anchors was compared with double-row repair. In Group 3, suture bridge using standard lateral row anchors was compared with double-row repair. The contact conditions of the rotator cuff footprint were measured using pressure-sensitive film. Results: There were no statistically significant differences between any of the techniques regarding contact area F(2, 15.7) = 3.09, P = 0.07 or mean contact pressure F(2, 15.1) = 2.35, P = 0.12. A post hoc power analysis suggests differences between techniques are likely less than 91-113 mm for area and 0.071-0.089 N for pressure. Conclusions: The use of knotless anchors in the lateral row of a suture bridge repair did not increase the footprint contact area or contact pressure when compared to a suture bridge repair requiring knots laterally or to a double-row repair.
- Subjects
SUTURES; ROTATOR cuff; DEAD; OPERATIVE surgery; PRESSURE
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2011, Vol 19, Issue 10, p1788
- ISSN
0942-2056
- Publication type
Article
- DOI
10.1007/s00167-011-1478-0