March 2012

Study finds no restoration of proximal kinematics after hallux valgus surgery

In the moment: Surgery

Surgical hallux valgus correction significantly improves foot geometry and hallux kinematics but does not significantly change proximal kinematics, according to research from Marquette University in Milwaukee, WI.

In a study published in the February issue of Foot & Ankle International, investigators used a motion-analysis system to evaluate pre- and postoperatively 24 feet in 19 patients with hallux valgus. Patients were assessed at baseline and at seven and 60 months after surgery (mean follow-up, 16 months).

Postoperative results dem­on­strated significant improvements in hallux valgus angles, intermetatarsal angles, physical performance, and temporal-spatial and kinematic parameters for the hallux in the coronal and transverse planes. However, the analysis did not identify restoration of proximal kinematics.

Consistent with earlier studies, the Marquette researchers also found that surgery was associated with significant improvements in physical function and nonsignificant decreases in pain and increases general health.

The researchers concluded that although hallux valgus correction improves radiographic alignment, functional outcomes, and hallux kinematics, it is not clear whether the intervention alters forefoot, hindfoot, and tibia kinematics.

Canseco K, Long J, Smedberg T, et al. Multisegmental foot and ankle motion analysis after hallux valgus surgery. Foot Ankle Int 2012;33(2):141-147.

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