Is Immobilization of the Ankle and Metatarsophalangeal Joint Effective in Suppressing the Spread of

NewsBot · Aug 9, 2014

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Is Immobilization of the Ankle and Metatarsophalangeal Joint Effective in Suppressing the Spread of Infection in Diabetic Foot Ulcers?
Shunsuke Sakakibara et al
International Journal of Lower Extremity Wounds August 8, 2014

Diabetics with foot-related problems might eventually need to undergo major or minor amputation because of infection or cellulites. It has been suggested that immobilization of the ankle and the metatarsophalangeal joint suppresses the spread of infection; however, there is no evidence to support this inference. Here, we demonstrate by histological analysis how the immobilization works. The tendon from the amputated toe is harvested, and a hematoxylin–eosin stained paraffin-embedded section is prepared and analyzed. Necrosis occurred in only a single fiber of the tendon, and intact and necrotic or infected tendon fibers were found intermingled. The reciprocal movements of the tendon and the joint (extension and flexion) may be the pathogenic cause of cellulites and infection, leading to the massage effect and the spread of bacteria along the tendon itself. We suggest that immobilizing the ankle and the metatarsophalangeal joint with a removable contacting cast would suppress the spread of infection in foot ulcers.
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