High arch treatment
With a high arch, the most troublesome cases are those in which the longitudinal arch is raised primarily or solely on the inside. This results in the foot being pushed outward at the ankle, placing increased stress on the ankle and finally leading to instability and arthritis in the joint. With such high arch cases, a joint-preserving correction is generally performed. This involves moving the heel towards the outside and upwards, and results in a flattening of the longitudinal arch and the correction of the rearfoot varus. This is followed by a corrective osteotomy of the first metatarsal bone, whereby the longitudinal arch of the foot is further flattened and the Peroneus Longus tendon is joined to the Peroneus Brevis tendon (tenodesis).