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Outcome of Second-Ray Pathologies Following Weil Osteotomy in Patients Treated for Hallux Valgus.

Foot & Ankle Specialist 2018 December 18
BACKGROUND: We hypothesized that the cause of second-ray pathology with hallux valgus is excessive relative length of the second metatarsal and performed Weil osteotomy to shorten it, with correction of hallux valgus. The purpose of this study is to evaluate the outcome of second-ray pathology after distal chevron osteotomy (DCO) with Weil osteotomy to correct metatarsal parabola.

METHODS: We performed concomitant Weil osteotomy of the second metatarsal with DCO of the first metatarsal as part of hallux valgus with second-ray pathology correction surgery in 45 feet (40 patients). Second-ray pathologies were claw toe deformity, painful plantar callosity, second metatarsophalangeal joint (MTPJ) dislocation, and osteoarthritis (OA) of the second MTPJ. We measured projection of the second metatarsal (PSM), metatarsal protrusion index (MPI), and metatarsal protrusion distance (MPD). The second-ray surgery outcome was assessed by patient satisfaction.

RESULTS: Patient satisfaction was good in claw toe deformity and OA (satisfaction rate: 60% [23 patients] and 71% [7 patients], respectively) and fair in painful plantar callosity and second MTP joint dislocation (satisfaction rate: 44% [9 patients] and 33% [6 patients], respectively). Total patient satisfaction rate was higher when the PSM, MPI, and MPD ranged between 7 and 12 mm, -5 and 0 mm, and 0 and 4 mm, respectively.

CONCLUSIONS: We concluded that simultaneous performance of hallux valgus correction and Weil osteotomy in patients with second-ray pathologies associated with hallux valgus was safe as well as effective. Correcting the metatarsal parabola within the appropriate range after surgery is associated with second-ray pathology outcome.

LEVELS OF EVIDENCE: Therapeutic studies, Level VI: Case series.

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