The Role of Interfragmentary Compression Screw on Union Rates and Shortening of the First Ray in Lapidus Arthrodesis: A Comparative Study

Hallux valgus (HV) is a common deformity of the forefoot in which a deviation of the first metatarsophalangeal joint arises. HV has been described to be characterized by a number of structural factors including radiographic angles, metatarsal length, metatarsal head shape, sesamoid position, first metatarsocuneiform joint flexibility and pes planus. The etiology is not fully resolved. However, HV is associated with gender, age and family history. Moreover, it is limited to shoe-wearing cultures and dependent on footwear in adolescence and adult hood.