Biceps Tenodesis with Interference Screw Fixation: A Biomechanical Comparison of Screw Size and Technique

Introduction Numerous surgical procedures have been developed to address pathology associated with the long head of the biceps tendon. Tenodesis might be preferred over tenotomy for several reasons, including improved cosmetic appearance, maintenance of elbow flexion and supination strength, and maintenance of the biceps muscle length-tension relationship. To our knowledge, there have been no studies evaluating the fixation stability of biceps tenodesis either proximally or distally in relation to screw diameter or length. The objective of this study was to compare the cyclical and ultimate pullout strength of interference screws of different size and length at both proximal and distal insertion sites.