Abstract
BackgroundThe diabetic foot (DF) ulcer is the severe complication of type 2 diabetes mellitus (T2DM). Sarcopenia is characterized as the loss of muscle mass and strength, resulting in the increased risk of fracture and physical disability. Sarcopenia may affect the foot-ankle function in DF ulcer patients, compromise the quality of life.ObjectiveThe aim was to clarify the effect of sarcopenia on foot-ankle function in patients with DF ulcer.MethodsIn total of 108 T2DM patients with DF ulcer were enrolled. Based on the examination of muscle mass by dual energy X-ray absorptiometry (DXA) and grip strength and 5x sit-to-stand test, the DF patients were divided into sarcopenia and non-sarcopenia groups. The severity of DF ulcer was evaluated by Wagner classification. The foot-ankle function was evaluated by American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Score.ResultsDF patients with sarcopenia showed advanced age, lower BMI, longer duration of T2DM, and more severe Wagner classification, reduced appendicular skeletal muscle mass index (ASMI), grip strength, transcutaneous oxygenpressure (TcPO2) and prolonged time of 5X sit-to-stand test. The stratified comparison analysis indicated that severity of sarcopenia and DF ulcer, reduced TcPO2, and grip strength were aggravated with the impaired foot-ankle function (P < 0.05). Multivariate Logistic analysis showed that age, TcPO2, and severe sarcopenia were risk factors deteriorating the foot-ankle function.ConclusionThe sarcopenia is a key risk factor of decreasing foot-ankle function in patients with DF ulcer. Thus, the prevention of muscle mass and strength loss could be considered as part of comprehensive therapy for DF ulcer.
Published Version
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