Sự phổ biến của liên minh cổ chân Có lẽ IS 1% hoặc ít hơn. Hai trang web bị ảnh hưởng thường NHẤT là doanh calcaneonavicular và khía cạnh giữa các doanh talocalcaneal. Chẩn đoán nên bị nghi ngờ trong preteen hoặc bệnh nhân vị thành niên với khởi phát âm thầm đau đớn hay bất ngờ trong midfoot để hindfoot liên kết với một | Tarsal Coalition and Painful Flatfoot Kent A. Vincent MD Abstract The prevalence of tarsal coalition is probably 1 or less. The two sites most commonly affected are the calcaneonavicular joint and the middle facet of the talocalcaneal joint. Diagnosis should be suspected in the preteen or teenage patient with insidious or sudden onset of pain in the midfoot to hindfoot associated with a lack of motion in the subtalar joint. Initial treatment with immobilization or an orthosis may relieve symptoms but most patients will have persistent symptoms that warrant surgical correction. Long-term results indicate that excision of the coalition is moderately successful in relieving symptoms in the calcaneonavicular bar. Long-term success with excision of subtalar bars is less clear although early relief of symptoms is usually possible. J Am Acad Orthop Surg 1998 6 274-281 Tarsal coalition is a congenital anomaly with variable levels of union between two of the tarsal bones. This results in rigidity of motion in the foot in the planoval-gus position. The clinical syndrome has been referred to as the Òperoneal spastic True spasticity of the peroneal musculature is not a causative factor nor is it probably even a result of the coalition. Rather lateral joint pain from restricted joint articulation is seen on examination with attempts to move the subtalar joint through its range of normal motion especially inversion. History The first description of tarsal coalition was probably in the French literature by Buffon in 1750. The calcaneonavicular bar was described radiographically in 1921 by Slomann who used a 45-degree oblique film. In 1927 Badgley recognized the relationship of the calcaneonavicular coalition to the syndrome of per oneal spastic flatfoot. The first description of use of the axial radiographic view to show middle-facet talocalcaneal coalition was by Korvin in 1934. Harris and Beath1 later popularized this view and also described the clinical entity of .
