In Chopart amputations, which tendon is rerouted to the neck of the talus?

In Chopart amputations, which tendon is rerouted to the neck of the talus?

• A. Tibialis Anterior
• B. Tibialis Posterior
• C. Extensor Hallucis Longus
• D. Peroneus Longus

Answer: (A)

Rerouting the tibialis anterior tendon to the neck of the talus in Chopart amputation is done to preserve active dorsiflexion and control of the hindfoot after midfoot disarticulation. The tibialis anterior is the primary dorsiflexor of the foot, and moving its pull to the talar neck allows its contraction to lift the forefoot relative to the hindfoot, producing dorsiflexion of the residual limb and helping position the foot for weight bearing with a prosthesis. This setup also helps prevent equinus contracture and yields a more stable, plantigrade residual limb. Tendons like tibialis posterior, extensor hallucis longus, or peroneus longus don’t provide the same reliable dorsiflexion effect or hindfoot stabilization in this procedure.

Rerouting the tibialis anterior tendon to the neck of the talus in Chopart amputation is done to preserve active dorsiflexion and control of the hindfoot after midfoot disarticulation. The tibialis anterior is the primary dorsiflexor of the foot, and moving its pull to the talar neck allows its contraction to lift the forefoot relative to the hindfoot, producing dorsiflexion of the residual limb and helping position the foot for weight bearing with a prosthesis. This setup also helps prevent equinus contracture and yields a more stable, plantigrade residual limb. Tendons like tibialis posterior, extensor hallucis longus, or peroneus longus don’t provide the same reliable dorsiflexion effect or hindfoot stabilization in this procedure.