Subtalar Repositional Arthrodesis for Adult Acquired Flatfoot

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.…”

Computer based systems in foot and ankle surgery at the beginning of the 21st century

“…The biomechanical consequences of these deformities frequently lead to clinical symptoms like pain and gait disturbances [2,12,33,39,42,53,58,65,68,71]. The correction of the deformities is challenging [5,67,71].…”

“…For any kind of reduction or correction at the foot and ankle an immediate biomechanical assessment of the reduction result would be desirable [2,12,33,39,42,53,58,65,68,71]. This is especially true for a CAS guided reduction or correction, which is supposed to be more accurate than a conventional reduction [46].…”

Intraoperative 3-D imaging with ISO-C-3D and Computer Assisted Surgery in foot and ankle surgery

“…The biomechanical consequences of these deformities frequently lead to clinical symptoms like pain and gait disturbances [2,7,12,16,17,24,25,27,29,30]. The correction of the deformities is challenging [4,28,30].…”

“…The significance of the introduced CAS-methods is high in those cases, because the improved accuracy may lead to an improved clinical outcome like complex corrections in the hind-and midfoot deformities [2,5,7,12,16,17,24,25,27,29,30]. CAS is too complex and time consuming for all those cases that are accurately and easily performed by the experienced surgeon.…”