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- Title
Biomechanical comparison of three methods for distal Achilles tendon reconstruction.
- Authors
Wu, Ziying; Hua, Yinghui; Li, Hongyun; Chen, Shiyi; Li, Yunxia
- Abstract
<bold>Purpose: </bold>To compare the load at failure and stiffness associated with three surgical techniques for distal Achilles tendon reconstruction (AT).<bold>Methods: </bold>Nine matched pairs of fresh-frozen human cadaveric ATs were divided into three groups. Distal AT reconstruction was performed using suture anchors or one of two lengths of tendon overlap (10 or 5 mm). Each tendon was loaded to failure. The load at failure (N), stiffness (N/mm), and mode of failure were recorded. Differences in load at failure and stiffness were analysed.<bold>Results: </bold>Mean load at failure was significantly higher in the 10-mm group than in the 5-mm group (p < 0.05) or the suture-anchor group (p < 0.05). Load at failure did not differ significantly between the suture-anchor and 5-mm group, and stiffness did not differ significantly between any two groups. In the 10- and 5-mm groups, failure was caused by the grafts pulling out through the substance of the AT. Modes of failure varied in the suture-anchor group.<bold>Conclusions: </bold>The load at failure was higher in the 10-mm group than in the 5-mm and suture-anchor groups. Although all three surgical techniques provide sufficient primary load-bearing ability, the 10-mm tendon-overlap technique may be more conducive to early post-operative rehabilitation.
- Subjects
BIOMECHANICS; ACHILLES tendon; COMPARATIVE studies; STIFFNESS (Mechanics); OPERATIVE surgery; SURGERY; ACHILLES tendon injuries; AUTOGRAFTS; CHRONIC diseases; DEAD; KINEMATICS; RESEARCH methodology; MEDICAL cooperation; RESEARCH; ACHILLES tendon rupture; STATISTICAL sampling; PLASTIC surgery; SUTURES; SUTURING; TENDON injuries; TENOTOMY; TRANSPLANTATION of organs, tissues, etc.; EVALUATION research
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2015, Vol 23, Issue 12, p3756
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-014-3176-1