Hallux valgus deformity (HV) is a common orthopaedic disease, consisting of a malformation of the great toe, commonly known as a bunion. This condition is affecting about every fourth individual up to 65 years and around every third individual later on in life.
This study was jointly conducted by K. Moerenhout, S. Chopra and X. Crevoisier of the Lausanne University Hospital (CHUV) and the University of Lausanne (UNIL). S. Chopra holds an additional position at the Leeds Institute of Rheumatic and Musculoskeletal Medicine (University of Leeds).
The study involved 10 female patients with moderate to severe hallux valgus was the first one to monitor midterm outcome of hallux valgus surgery using gait analysis and compares the radio-clinical and gait outcome at 6 and 12 months following modified Lapidus procedure.
12 gait parameters including toe-off pitch angle, push-off duration, and stance phase were analyzed using pressure insoles and inertial sensors (Physilog®) and demonstrated that outcome improves from 6 months to 12 months postoperative with room for further improvement at long term.
Keywords: Gait, Hallux valgus, Lapidus, Biomechanics, Foot