Patients and Methods

The painful pes planovalgus foot type includes a range of deformities. Causes for the symptomatic pes valgus deformity include posterior tibial tendon dysfunction, subluxation of the talus, triceps surae or isolated gastrocnemius equinus, traumatic tendon rupture, ligament laxity, and various neuromuscular imbalances. Detailed discussion of the anatomy and physiology of the symptomatic pes planovalgus deformity has been described in the scientific literature. Collapsing pes valgus deformity includes the loss of medial arch height, forefoot abduction, hindfoot valgus and, most importantly, pain, discomfort, and functional weight bearing limitations. A variety of joint-sparing, arthrodesis, and combination procedures have been described for the treatment of the painful pes valgus deformity that warrants surgical intervention. Of particular note, some authors have indicated the need for further research regarding the usefulness of isolated talonavicular (TN) arthrodesis in this setting. In the current retrospective study, the authors assessed the effectiveness of an isolated TN arthrodesis for the surgical management of the painful collapsing pes valgus deformity in both pediatric and adult patients.