A biomechanical comparison of the primary stability of two minimally invasive techniques for repair of ruptured Achilles tendon
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To compare the primary stability of two minimally invasive procedures of Achilles tendon (AT) repair, namely a modified percutaneous repair of ruptured AT and the Achillon suture configuration.
Eighteen (nine matched pairs) frozen ovine ATs were tenotomized 5 cm from the calcaneal insertion. In each pair, one tendon was randomly allocated to one of the two techniques: a modified percutaneous repair group and the Achillon device suture configuration. Specimens were tested performing an unidirectional tensile load to failure using a servo-hydraulic testing device (MTS Systems, Eden Prairie, MN, USA), controlled by an electropulse e3000 INSTRON machine (Instron Ltd, Buckinghamshire, UK). The tendons were then loaded to failure at a rate of 10 mm/s.
Two of the nine pairs of specimens were discarded because one specimen for each of the pair pulled out of the pneumatic clamp during mechanical testing. The remaining seven matched pairs were successfully tested. There were no differences in mean strength, mean maximum load, mean failure elongation, tension, stiffness and mode of failure between the two groups.
The Achillon-like configuration and the modified percutaneous repair of ruptured AT provided similar biomechanical performance.
KeywordsAchilles Tendon Rupture Percutaneous Sports Athlete
- 13.Herbort M, Haber A, Zantop T, Gosheger G, Rosslenbroich S, Raschke MJ, Petersen W (2008) Biomechanical comparison of the primary stability of suturing Achilles tendon rupture: a cadaver study of Bunnell and Kessler techniques under cyclic loading conditions. Arch Orthop Trauma Surg 128:1273–1277PubMedCrossRefGoogle Scholar
- 19.Khan RJ, Carey Smith RL (2010) Surgical interventions for treating acute Achilles tendon ruptures. Cochrane Database Syst Rev CD003674Google Scholar
- 44.Schlegel TF, Hawkins RJ, Lewis CW, Turner AS (2007) An in vivo comparison of the modified Mason-Allen suture technique versus an inclined horizontal mattress suture technique with regard to tendon-to-bone healing: a biomechanical and histologic study in sheep. J Shoulder Elbow Surg 16:115–121PubMedCrossRefGoogle Scholar