Congenital convex pes valgus.

Area of Science:

• Orthopedic Surgery
• Pediatric Orthopedics
• Foot and Ankle Surgery

Background:

• Congenital convex pes valgus, also known as congenital vertical talus, is a rare and complex foot deformity.
• This condition presents significant challenges in achieving functional correction and requires specialized surgical approaches.

Purpose of the Study:

• To evaluate the medium-term outcomes of surgical correction for congenital convex pes valgus.
• To assess the efficacy of tibialis anterior tendon transfer to the neck of the talus in treating this condition.

Main Methods:

• A review of ten feet in seven patients who underwent surgical correction by a single surgeon using a standardized technique.
• Evaluation included clinical assessment, radiological measurements, patient questionnaires, and photographic documentation at a mean follow-up of nine years.

Main Results:

• No patients required revision surgery, and all but one reported satisfaction with the outcome.
• Patients experienced no functional limitations and could wear normal shoes, with mean ankle dorsiflexion of 17 degrees and plantar flexion of 21 degrees.
• Radiological parameters were within normal limits, with no observed avascular necrosis of the talus, though talonavicular joint irregularity was noted.

Conclusions:

• The surgical technique involving tibialis anterior tendon transfer to the talar neck provides very satisfactory medium-term results for congenital convex pes valgus.
• This procedure effectively addresses functional limitations and allows patients to wear regular footwear, indicating a successful correction of the deformity.