Bone Marrow Oedema Syndrome (BMOS) is an unusual and poorly understood condition. It commonly affects the hips and knees and is reported to have a tendency to recur. The foot and ankle are less frequently involved but nevertheless patients can be severely impaired. Only case reports of BMOS of the foot and ankle have been published. The aim of this study is to evaluate the sites of occurrence, risk factors, efficacy of immobilisation, response to intravenous biphosphonates and local or remote recurrence over the following years. A retrospective review of 25 adult patients who have been diagnosed with BMOS have been followed-up for an average of 5.8 years (range: 2–11). Six patients have not been traced.Introduction
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