Biomechanical study comparing biceps wedge tenodesis with other proximal long head of the biceps tenodesis techniques

Wei Ren Su, Jeffrey E. Budoff, Chen Hao Chiang, Chi Ju Lee, Cheng Li Lin

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Purpose: The purpose of this biomechanical study was to compare the ultimate failure strength, stiffness, cyclic displacement, and failure displacement of 5 different proximal biceps tenodesis fixation techniques, specifically comparing wedge tenodesis with the other 4 techniques. Methods: Forty cadaveric shoulders underwent 1 of 5 long head of the biceps tenodesis techniques and were cyclically tested to failure by use of tensile forces applied parallel to the longitudinal axis of the humerus. A preload at 5 N was applied for 2 minutes, followed by cyclical loading for 500 cycles from 5 to 70 N at 1 Hz and a pull-to-failure test at 1 mm/s. The techniques studied were wedge tenodesis, suture anchor fixation, suprapectoral interference screw fixation, T-wedge tenodesis, and the percutaneous intra-articular transtendon (PITT) technique. Cyclic displacement, failure displacement, and stiffness were calculated. Results: The wedge tenodesis technique had an ultimate failure load similar to interference screw fixation and a greater ultimate failure load and stiffness than the suture anchor, PITT, and T-wedge techniques (P < .05). Conclusions: In this biomechanical study, wedge tenodesis was found to have an ultimate failure load similar to interference screw fixation and a greater ultimate failure load and stiffness than the suture anchor, PITT, and T-wedge techniques. Clinical Relevance: On biomechanical testing, wedge tenodesis compares favorably with other techniques and may be a useful clinical option for proximal biceps tenodesis.

Original languageEnglish
Pages (from-to)1498-1505
Number of pages8
JournalArthroscopy - Journal of Arthroscopic and Related Surgery
Volume29
Issue number9
DOIs
Publication statusPublished - 2013 Sep

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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