Determination of the Pathophysicologic Collagen Changes in the Diabetic Achilles Tendon

Inclusion Criteria: * Type I or Type II Diabetes - diagnosed by their primary care provider * Demonstrates an equinus ankle deformity - Less than 0 degrees of passive dorsiflexion at the ankle joint with the knee extended or flexed. * Preulcerative plantar foot lesions - In the form of a callus with the epithelium intact OR may also have the following: * Plantar ulceration without a history of amputations * Plantar ulceration with a history of digital amputations - or planned digital amputation * Plantar ulceration with a history of transmetatarsal amputations - or planned transmetatarsal amputation * Plantar ulceration with a history of Chopart's or more proximal amputation - or planned Chopart's or more proximal amputation Exclusion Criteria: * Does not demonstrate an equinus ankle deformity * Cannot undergo elective surgery for any reason * History of Achilles tendon lengthening procedure performed * History of traumatic (acute or chronic) injury to the Achilles tendon