) Subtalar arthrodesis with autologous bone grafts and secured with cancellous bone screw showed ample stability and rate of union. ) Operative techniques have included various adjuncts to help achieve fusion, including autogenous bone graft, allograft, and, more recently, various orthobiologics. (įusion rates in subtalar arthrodesis range from 84% to 100% in various studies. ) The goal is to fuse the subtalar joint in a solid and physiologic position to stop further painful motion. There is increased stress on joints in the area and the foot is forced to perform abnormal motions, resulting in increased contact stress and forces that cause further degeneration. ) The root of this pain lies in changes in articular geometry and, therefore, joint motion, in these pathologies. In all cases the procedure is performed to relieve pain and improve function. However, for talocalcaneal conditions, isolated subtalar arthrodesis has also been advocated for with cited advantages of lower risk of adjacent joint arthritis and lower risk of nonunion or malunion of the transverse tarsal joint. ) Subtalar arthrodesis is done as a component of triple arthrodesis for stage three adult-acquired flat foot to correct hind foot misalignment. The subtalar joint may become unstable by ligament or tendon insufficiency, ( ) Subtalar joint arthritis may develop idiopathically or secondary to trauma ( ![]() ![]() Arthrodesis of the subtalar joint is an effective treatment for patients with isolated subtalar arthritis or instability.
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