Arthrodesis Techniques in the Management of Stage-Ii and Iii Acquired Adult Flatfoot Deformity

A Review of 51 Talonavicular Joint Arthrodeses for Flexible Pes Valgus Deformity

“…Most published reports regarding isolated TN arthrodesis deal with adults and associated rheumatoid arthritis, and this has been made clear by Weinheimer (25). As regards the arthritic TN joint, various articles have shown the effectiveness of arthrodesis at this level (26)(27)(28)(29)(30). Generally arthrodesis of an isolated, unstable, nonarthritic joint for the treatment of pes valgus is well accepted (ie, subtalar joint and medial column procedures); however, this is not the case for isolated TN joint fusion (21,22,31).…”

Treatment of Severe, Painful Pes Planovalgus Deformity with Hindfoot Arthrodesis and Wedge-Shaped Tricortical Allograft

“…Pes planovalgus deformity often involves several biomechanical abnormalities, including lateral column shortening in relation to the medial column, lateral subluxation of the navicular on the talus, hyperpronation from increased eversion of the subtalar joint, and valgus orientation of the calcaneus. 4,8,19 Pes planovalgus may be flexible or rigid, as well as painless or symptomatic. Patients who progress to severe or fixed deformities may have discomfort in one or more of the following areas: medial or lateral midfoot and medial or lateral hindfoot.…”

Correlation between hindfoot joint three-dimensional kinematics and the changes of the medial arch angle in stage II posterior tibial tendon dysfunction flatfoot

“…Typical anatomical changes associated with PTTD flatfoot include the lateral translation of the navicular bone on the talus in a dorsoplantar view as well as calcaneal eversion and adduction (Johnson and Yu, 2006). Also, the calcaneus pronates in a posteroanterior view and the talar head depresses (Johnson and Yu, 2006).…”

“…Also, the calcaneus pronates in a posteroanterior view and the talar head depresses (Johnson and Yu, 2006). When PTTD is prolonged and has progressed to stage II, the spring ligament, the articular capsule of the talonavicular joint and the deltoid ligament become relaxed, resulting in eversion in the hindfoot and adduction in the forefoot (Johnson and Yu, 2006).…”