FM35 Mid- to long-term biomechanical outcome of joint preserving realignment surgery for ankle osteoarthritis (original) (raw)

Swiss medical weekly: official journal of the Swiss Society of Infectious Diseases, the Swiss Society of Internal Medicine, the Swiss Society of Pneumology

Abstract

Introduction: Joint preserving surgeries have gained popularity as treatment of asymmetric early and mid-stage ankle osteoarthritis. However, only limited long-term data on strength and walking biomechanics are available. Therefore, the purpose of this study was to quantify isometric plantar- and dorsiflexion strength and gait parameters (dynamic range of motion, peak moments) in patients who underwent realignment surgery. Methods: Eight patients, a minimum of seven years after realignment surgery (age: 44.7 ± 7.0 years); body mass index (BMI): 27.2 ± 4.6), and eight age-and gender matched healthy controls (age: 44.3 ± 6.6 years; BMI: 25.2 ± 3.4 kg/m2) were included in the study. The measurements consisted of 1) an instrumented gait analysis with a six camera motion analysis system (Vicon, Oxford, UK) and two force plates (Kistler, Winterthur, Switzerland) to assess ankle, knee, and hip kinematics and kinetics, and 2) an isometric torque measurement (torque transducer: SM-500N, Inte...

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