Radiostereometric Analysis of Subpectoral versus Suprapectoral Biceps Tenodesis with Interference Screw Fixation

Biceps tenodesis is performed with increasing frequency for various pathologies of the long head biceps tendon (LHBT). Multiple surgical techniques and devices for tenodesis have been described with favorable outcomes. The subpectoral approach provides adequate clinical outcomes; furthermore, recent research suggests that similar outcomes can be achieved via arthroscopic suprapectoral biceps tenodesis. Previous studies have compared the biomechanical profile of suprapectoral and subpectoral biceps tenodesis. There is a paucity of data regarding the biomechanical behavior and construct stability of suprapectoral and subpectoral biceps tenodesis in vivo. The purpose of this investigation is to quantify and compare the behavior of the biceps tenodesis construct in arthroscopic suprapectoral (ASPBT) and open subpectoral (OSPBT) techniques, with radiostereometric analysis (RSA)