Tarsal coalition is an abnormal bony, cartilaginous, or fibrous bridge between 2 or more tarsal bones. Adolescent athletes with tarsal coalitions typically present with symptoms that include foot and/or ankle pain and limited range of motion. Loss of mobility can lead to abnormal loading, articular instability, deformity, and joint degeneration. Nonoperative management includes immobilization, physical therapy, and custom foot orthosis. Surgical options include coalition excision and fat graft interposition, foot realignment, or a combination of these. Surgical treatment requires evaluation of the coalition type, foot alignment, and degenerative changes in the adjacent joints.
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