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Updated: Jul 31, 2025

A Mouse Model of Ankle-Subtalar Complex Joint Instability
Published on: October 28, 2022
Ankle Joint Microinstability: You Might Have Never Seen It but It Has Definitely Seen You
Jordi Vega1, Miki Dalmau-Pastor2
1Laboratory of Arthroscopic and Surgical Anatomy, Department of Pathology and Experimental Therapeutics (Human Anatomy Unit), University of Barcelona, Feixa Llarga s/n. 08907 Hospitalet del Llobregat, Spain; Foot and Ankle Unit, iMove Traumatology-Clinica Tres Torres, Barcelona, Spain; MIFAS by GRECMIP, Merignac, France; Foot and Ankle Consultant, Clinique Montchoisi, Lausanne, Switzerland.
Abstract:
Ankle microinstability results from the superior fascicle of anterior talofibular ligament (ATFL) injury and is a potential cause of chronic pain and disability after an ankle sprain. Ankle microinstability is usually asymptomatic. When symptoms appear, patients describe a subjective ankle instability feeling, recurrent symptomatic ankle sprains, anterolateral pain, or a combination of them. A subtle anterior drawer test can usually be observed, with no talar tilt. Ankle microinstability should be initially treated conservatively. If this fails, and because superior fascicle of ATFL is an intra-articular ligament, an arthroscopic procedure is recommended to address.
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