Prognostic Factors Affecting the Results of Modified Thompson Quadricepsplasty for the Treatment of Extension Contracture of the Knee

Document Type : RESEARCH PAPER

Authors

1 Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran

2 Orthopedic Research Center, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

Background: Knee extension contracture is a disabling complication after fractures around the knee. In this study we aimed to study factors influencing the outcomes of quadricepsplasty for the treatment of traumatic knee extension contracture. We hypothesized that there is no factor influencing the final range of knee motion.
Methods: In this retrospective study, we included 64 patients who underwent modified Thompson quadricepsplasty between 2008 to 2011 with a mean follow-up time of 36 months.
Results:The mean change in flexion was 66 degrees. Using Judet criteria, results were excellent in 41 patients (64%), good in 15 (23%), fair in 4 (6%) and poor in 4 (6%). Preoperative arc of flexion, duration of extension contracture, number of previous surgeries on the limb, and BMI of the patients were independently influencing the final flexion.
Conclusion: Modified Thompson quadricepsplasty is associated with high number of excellent and good results especially when it is performed earlier in more severe contractures. Preoperative arc of flexion, interval between trauma surgery and quadricepsplasty, the number of prior surgeries, and BMI influence the outcomes of quadricepsplasty.

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Main Subjects

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The Archives of Bone and Joint Surgery
Volume 5, Issue 2
March 2017
Pages 109-113

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History

  • Receive Date: 10 August 2016
  • Revise Date: 02 March 2017
  • Accept Date: 20 February 2017

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