Arthroscopic triple arthrodesis in patients with Müller Weiss disease

BackgroundMüller Weiss disease is a rare disease characterized by collapse of the lateral part of the navicular, outwards protrusion of the talar head and peri-navicular osteoarthrosis. We review the result of six patients treated by arthroscopic triple arthrodesis.MethodsSince 1998, arthroscopic triple arthrodesis was performed in six feet with Müller Weiss disease. The arthroscopic findings were analyzed. The feet were graded by the pre-operative X-rays according to Mareira classification. The consolidation of the triple arthrodesis was assessed by the post-operative X-rays of the operated feet. The clinical outcome was assessed by the modified AOFAS ankle–hindfoot scale.ResultsAll the operated feet fused solidly. The average time for solid fusion was 21 weeks (16–22 weeks). The overall American Orthopaedic Foot and Ankle Society (AOFAS) ankle–hindfoot score was 81.5.ConclusionsArthroscopic triple arthrodesis is an alternative surgical treatment in management of Müller Weiss disease resisted to conservative treatment.Level of evidenceLevel 4 therapeutic study.