What condition is characterized by a pes cavus foot with hammer toes, foot drop, and frequent ankle strains?

Charcot-Marie-Tooth disease is characterized by progressive muscle weakness and atrophy, primarily affecting the lower legs. The condition often leads to a pes cavus foot, which is a high-arched foot that can contribute to instability and imbalance. This abnormal structure can cause various foot deformities, including hammer toes, where the toes are curled due to imbalances in the muscles. Foot drop, a common symptom in Charcot-Marie-Tooth disease, occurs when there is weakness in the muscles responsible for lifting the front of the foot, leading to difficulties in walking and an increased risk of trips or falls. Ankle strains are also frequently seen in individuals with this condition as the altered biomechanics and muscle weakness contribute to joint instability.

In contrast, the other conditions listed do not encapsulate the specific combination of symptoms described. Plantar fasciitis primarily affects the heel and arch of the foot rather than causing structural changes. A flatfoot deformity typically involves a low arch rather than a high arch, and Achilles tendonitis focuses on inflammation of the Achilles tendon rather than encompassing the wide-ranging issues associated with Charcot-Marie-Tooth disease.