Surgical Considerations: Repair of Long Segment Defect Posterior Tibial Tendon Using Fresh Frozen Tibial Tendon Allograft.

Tibialis posterior (TP) tendon ruptures are common after ankle injuries, degenerative processes, or biomechanical instability. The TP tendon decelerates the subtalar joint pronation and internal rotation of the leg during the contact phase. It also plantarflexes and inverts the foot on the leg during the static phase of gait.