TcPO2 is accurate but not specific. Burgess in jbjs 82 found that value of 40 mmHg or more predicts wound healing. Xenon 133 skin clearance is a direct measure of bloodflow can be used to predict successful healing according to Roon Am J Surg 77 but not practical. Occlusion of both deep and superficial femoral vessels indicate poor prognosis for healing in TT amputation. Ankle brachial index.
Nutrition correlates with wound healing.
Give toe filler or if 1st give metatarsal pad and rockersole. Both can develop equinus deformity. Need extensor tendon preservation and achilles tendon lengthening and long casting. Give modified shoe or molded plastic socket or combination. After removal of portion of sustenaculuum tali, calcaneus is internally fixated into ankle mortise.