[Research on classification and treatment of talocalcaneal bridge]

Talocalcaneal bridge mostly occurs on the inner side of heel-talar joint, and accounts for the highest proportion of foot tarsal deformities. Most of patients have no obvious symptoms, and manifested as pain and subtalar joint dysfunction at the onset. There are many types of calcaneal talus bridge, and different types have different clinical guiding significance. At present, Rozansky classification is the most widely used clinically, which has certain guiding significance for clinical treatment;Lim classification is simpler and more comprehensive, and Blitz classification is recommended for combined foot deformities or osteoarthritis. In terms of treatment, conservative treatment is recommended for patients with mild symptoms;patients who fail conservative treatment could choose arthroscopic surgery to remove bone bridge, while patients with larger areas(>50% subtalar articular surface), multi-articular bone bridges, and severe deformities incision surgery could be selected, the first or second stage treatment combined with flat foot deformity;for patients with multiple arthroscopic or incision surgery failures, severe osteoarthritis, or complex talocalcaneal bridge, subtalar joint or tri-articular fusion could be selected, and correct deformity.