The Effects of Chronic Ankle Instability on the Biomechanics of the Uninjured, Contralateral Ankle During Gait

Objective To determine whether unilateral chronic ankle instability (CAI) affects the kinematics of the uninjured contralateral ankle. Methods In this case‐control study, 15 adult patients with unilateral CAI and 15 healthy controls were studied. Both the unstable and uninjured ankles in patients wi...

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Bibliographic Details
Published in:Orthopaedic surgery 2022-09, Vol.14 (9), p.2238-2244
Main Authors: Ziaei Ziabari, Elaheh, Haghpanahi, Mohammad, Razi, Mohammad, Lubberts, Bart, Ashkani‐Esfahani, Soheil, DiGiovanni, Christopher W.
Format: Article
Language:English
Subjects:
Ankle
ankle sprain
Biomechanics
Body mass index
chronic ankle instability
Comparative analysis
Gait
Injuries
Joint and ligament injuries
Kinematics
Magnetic resonance imaging
Medical research
Medicine, Experimental
Orthopedics
Patients
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Summary:Objective To determine whether unilateral chronic ankle instability (CAI) affects the kinematics of the uninjured contralateral ankle. Methods In this case‐control study, 15 adult patients with unilateral CAI and 15 healthy controls were studied. Both the unstable and uninjured ankles in patients with unilateral CAI (CAI group, n = 15) were compared with that of healthy individuals (control group, n = 15). Applying body photo‐reflective markers, the participant's motion during gait was measured. Biomechanical variables including overall ankle‐toe angle, linear velocity, linear acceleration, angular velocity, angular acceleration, range of motion (RoM) in dorsiplantar flexion, and inversion‐eversion at initial contact, loading response, mid‐stance, terminal stance, pre‐swing, and swing phase of the gait were measured. Results In patients with CAI, the injured and uninjured ankles were significantly different regarding angle‐toe angle, inversion‐eversion RoM, dorsiplantar flexion in mid‐stance, inversion‐eversion at initial contact and terminal stance as well as the pre‐swing and swing phases (p
ISSN:1757-7853
1757-7861
DOI:10.1111/os.13307