Plantar pressure distribution in hallux valgus feet after a first metatarsal proximal crescentic osteotomy with a lesser metatarsal proximal shortening osteotomy

Abstract

Background: Plantar pressure distribution after the first metatarsal proximal crescentic osteotomy (FMPCO) with lesser metatarsal proximal shortening osteotomy (LMPSO) for hallux valgus with metatarsalgia has not been previously described.

Methods: The pre- (Pre) and postoperative (Post) groups comprised of 18 patients who underwent unilateral FMPCO with LMPSO; fifteen healthy volunteers constituted the control (C) group. For each of the 10 regions, peak pressure (Peak-P), maximum force (Max-F), contact time (Con-T), contact area (Con-A), and force-time integral (FTI) were measured.

Results: The mean Peak-P of the second metatarsal head was significantly lower in the Post group than the Pre group. The mean Peak-P, Max-F, Con-T, and FTI were not significantly different between the Post and C groups. The mean Con-A was significantly lower in the Post group than the C group.

Conclusion: FMPCO with LMPSO may improve the plantar pressure of the central forefoot comparable to healthy subjects.

Keywords: Hallux valgus; Metatarsalgia; Osteotomy; Plantar pressure.