Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 20, Issue 7, pp 1392–1397 | Cite as

A biomechanical comparison of the primary stability of two minimally invasive techniques for repair of ruptured Achilles tendon

  • Umile Giuseppe Longo
  • Francisco Forriol
  • Stefano Campi
  • Nicola MaffulliEmail author
  • Vincenzo Denaro



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.


Achilles Tendon Rupture Percutaneous Sports Athlete 


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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Umile Giuseppe Longo
    • 1
  • Francisco Forriol
    • 2
  • Stefano Campi
    • 1
  • Nicola Maffulli
    • 3
    Email author
  • Vincenzo Denaro
    • 1
  1. 1.Department of Orthopaedic and Trauma SurgeryCampus Bio-Medico UniversityRomeItaly
  2. 2.School of MedicineCEU UniversityMadridSpain
  3. 3.Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End HospitalQueen Mary University of LondonLondonUK

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