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An injury to the anterior talofibular ligament (ATFL) is the most common type of lateral ankle sprain. The ATFL connects the talus (ankle bone) to the fibula. Anterior talofibular ligament sprain symptoms include pain or soreness, swelling, difficulty walking, bruising, and stiffness in the joint.
Orthopaedic Surgery. Posterior tibial tendon dysfunction (or Adult Acquired Flatfoot Deformity) is commonly known as a flat foot or âcollapsed arch.â This loss of arch occurs because the large tendon on the inside of the ankle, the posterior tibial tendon, becomes stretched out and no longer supports the footâs arch as it should.