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Tendinopathies of the Foot and Ankle.

Tendinopathies of the foot and ankle, including posterior tibial, peroneal, and tibialis anterior, are commonly overlooked by primary care physicians. The posterior tibial tendon is the main dynamic stabilizing muscle of the medial longitudinal arch. Patients who have posterior tibial tendinopathy present with medial ankle pain, pes planovalgus deformity, and a positive too many toes sign. Nonoperative treatment options include support for the medial longitudinal arch and physical therapy focusing on eccentric exercises. Surgical treatment is considered for patients who do not respond to nonoperative treatments after three to six months and is based on the specific stage of tendinopathy. Peroneal tendon disorders are commonly mistaken for or occur concomitantly with lateral ankle sprains. Varus hindfoot is a known risk factor for peroneal tendinopathy. Treatments include immobilization, laterally posted orthotics, and physical therapy for progressive tendon loading. Tibialis anterior tendinopathy presents as anterior ankle and medial midfoot pain and can be diagnosed with a positive tibialis anterior passive stretch test. Initial treatment includes immobilization followed by physical therapy. Surgical debridement can be considered if nonoperative treatment is ineffective.