
The operation is performed through an incision running from the inside ankle to the arch of the foot. The surgery involves a transfer of the flexor digitorum longus tendon (FDL) into the navicular bone, to take the place of the diseased tendon. This type of operation is used before the deformity has progressed to arthritis. As the deformity progresses, it causes arthritis of the hindfoot joints and pain at the outside of the ankle. The inflammation allows the tendon to stretch or tear, causing or exacerbating a flat foot deformity. The pain is due to inflammation of the posterior tibial tendon, this muscle / tendon supports the arch of the foot. This operation is for ankle pains due to flat feet (pes planovalgus). As a result, the tendon may not be able to provide stability and support for the arch of the foot, resulting in flatfoot. It occurs when the posterior tibial tendon becomes inflamed or torn. Posterior tibial tendon dysfunction is a very common problem.

Flat Foot Correction: FDL transfer and Calcaneal Osteotomy.
