Reason: Evaluate for posterior tibial tendon rupture right History: pain, edema, with inability to single heel raise right foot TENDONS: There is thickening and intermediate signal intensity within the posterior tibialis tendon indicating mild to moderate tendinosis. There is linear increased fluid signal intensity within the distal fibers of the posterior tibialis tendon at the level of its insertion on the navicular bone likely representing an interstitial insertional tear. There is no significant retraction. The flexor digitorum longus and flexor hallucis longus tendons are intact. The peroneal tendons appear intact. The Achilles tendon is normal in appearance. The extensor tendons appear intact.LIGAMENTS: There is thickening of the anterior talofibular ligament which may represent prior injury or sprain. The lateral collateral ligament complex otherwise appears intact. The distal tibiofibular syndesmotic complex appears intact. The imaged components of the deltoid ligament appear intact.ARTICULAR SURFACES AND BONE: There is subchondral cyst formation within the posterior aspect of the tibial plafond with sclerosis, joint space narrowing, and osteophyte formation indicating mild osteoarthritis. Otherwise no bone marrow signal abnormality is identified. No osteochondral defect is seen ADDITIONAL
1. Tendinosis of the posterior tibialis tendon with partial thickness and interstitial insertional tearing as described above. No evidence of retraction.2. Osteoarthritis of the ankle.