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Charcot neuropathic osteoarthropathy (CN) of the foot and ankle is a poorly understood destructive process that poses a great clinical challenge to foot and ankle specialists. Neuropathic fractures or dislocations in the foot and ankle predispose patients to increased morbidity, premature mortality, and can greatly decrease quality of life. Early recognition and treatment of CN is imperative to prevent the development of permanent deformities. The purpose of this article is to review the history, cause, and classification of CN and to discuss commonly used internal fixation techniques and their indications.

The majority of injuries during sport are to the lower extremity (more than 50%), most of which occur in children and young adults younger than 25 years and involve fractures, ligament injuries, or tendon injuries. This article discusses the etiology of some of the most common foot and ankle sports-related injuries. The authors focus on clinical findings, associated injuries, pathophysiology, and current trends. Many of these factors are discussed in detail elsewhere in this issue.

Combined arthrosis or deformity of the subtalar and ankle joints presents a challenge to the foot and ankle specialist. Tibiotalocalcaneal arthrodesis is a well-described surgical technique used for resolution of deformity and end-stage arthrosis of the ankle and subtalar joints and is currently the standard of care for this condition. This article highlights the technique of insertion of the humeral locking plate for the stabilization of tibiotalocalcaneal arthrodesis. A case study is provided to serve as an example of the technique.