PMID: 16642884Apr 29, 2006Paper

The stability of three commercially available implants used in medial opening wedge high tibial osteotomy

The Journal of Knee Surgery
William O P DorseyCari R Bryant

Abstract

This biomechanical study tested three commercially available fixation devices for medial opening wedge high tibial osteotomy (HTO). A medial opening wedge HTO model was created on replicate tibias. Fixation was achieved with one of three fixation devices: VS Osteotomy plate (EBI, Parsippany, NJ), Arthrex Osteotomy plate (Arthrex, Naples, Fla), and OsteoTrac plate (DJ Orthopedics Inc, Vista, Calif). For each fixation system, seven specimens were cyclically loaded in compression and torsion under physiologic loads on a servohydraulic machine. Mean axial stiffness was 2425 N/mm, 2358 N/mm and 2258 N/mm, respectively, for the EBI, Arthrex, and Alaron surgical plates. Mean torsional stiffness was 4.5 Nm/degree, 4.1 Nm/degree and 4.0 Nm/degree, respectively, for the EBI, Arthrex, and DJ Orthopedics surgical plates. Though the differences are not statistically significant between the three fixation devices (P=.74 for mean axial stiffness and P=.10 for mean torsional stiffness), there is insufficient statistical power to rule out a true difference. Using this replicate tibia model, all three fixation devices tested appear to successfully stabilize the osteotomy site with regards to physiologic axial and torsional loads.

Citations

Feb 4, 2009·International Orthopaedics·E M NelissenR G H H Nelissen
Jan 24, 2014·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Faik TürkmenSerdar Toker
Aug 9, 2015·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Julian DexelJörg Lützner
Oct 8, 2009·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Dietrich PapeDieter M Kohn
Jul 25, 2009·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Thomas Lind-HansenMartin Lind
May 3, 2014·Computer Methods in Biomechanics and Biomedical Engineering·R MootanahH J Hillstrom
May 8, 2013·Sports Medicine and Arthroscopy Review·Giuseppe VenaAnnunziato Amendola
Nov 5, 2015·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Kenichi GoshimaMika Akahane
Aug 19, 2014·Current Reviews in Musculoskeletal Medicine·Davide Edoardo BonasiaAnnunziato Amendola
Jun 15, 2011·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Steffen SchröterDirk Albrecht

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