The effect of calcaneal osteotomy on contact characteristics of the tibiotalar joint

摘要: Abstract To investigate the effect of calcaneal osteotomy on tibiotalar joint contact patterns in a normal and flatfoot model, we axially loaded 11 fresh frozen cadaver legs with 700 N quantified characteristics using Fuji superlow pressure film. For each testing sequence, unconstrained foot was neutral, 10° dorsiflexion, plantarflexion. Tibiotalar loading performed both materials tester (Group 1) manually customized jig 2). After osteotomy, calcaneus translated medially or laterally by 10 mm, sequence repeated. Each these series then repeated model simulated soft-tissue sectioning. Images were analyzed Bioquant R Video system for Group 1 an Orthographics Digitizing Tablet 2. 1, there no difference quantitative exception all parameters evaluated plantarflexion ( P = 0.062). 2, foot, lateral translational had effect, but medial associated change 0.05). The 2) qualitative shift alteration area positions when compared to ankle 0.06). A altered this 0.001). We concluded that hindfoot alignment can adversely affect characteristics. may be useful alternative arthrodesis cases early arthritis secondary severe varus valgus deformity.