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Biplanar chevron osteotomy.

Caio Nery1, Rui Barroco, Cibele Réssio

  • 1Foot and Ankle Clinic, Federal University of Sao Paulo, Escola Paulista de Medicina, SP, Brazil. caionery@uol.com.br

Foot & Ankle International
|October 3, 2002
PubMed
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Biplanar chevron osteotomy effectively corrects hallux valgus, significantly improving foot alignment and patient satisfaction. This surgical technique is recommended for hallux valgus with increased distal metatarsal articular angle (DMAA).

Area of Science:

  • Orthopedic Surgery
  • Podiatric Medicine
  • Foot and Ankle Surgery

Background:

  • Hallux valgus is a common foot deformity.
  • Increased distal metatarsal articular angle (DMAA) presents a surgical challenge.
  • Biplanar chevron osteotomy is a surgical technique used for correction.

Purpose of the Study:

  • To evaluate the clinical and radiological outcomes of biplanar chevron osteotomy.
  • To assess the efficacy of this technique in patients with hallux valgus and increased DMAA.
  • To determine patient satisfaction following the procedure.

Main Methods:

  • Retrospective review of clinical and radiological data.
  • Study included 61 patients (104 feet) with mild-to-moderate hallux valgus and increased DMAA.

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  • Follow-up duration of 2 years, with assessment of AOFAS Hallux Rating scores and radiographic angles.

    • Main Results:

    • Significant improvement in hallux valgus angle (25° to 14°), first intermetatarsal angle (12° to 8°), and DMAA (15° to 5°).
    • Average AOFAS score improved from 50 preoperatively to 90 postoperatively.
    • 94% of patients had grade 0 or 1 sesamoid lateral subluxation; 90% of patients were satisfied.

    Conclusions:

    • Biplanar chevron osteotomy demonstrates excellent outcomes for hallux valgus with increased DMAA.
    • The procedure leads to significant radiographic correction and high patient satisfaction.
    • This technique is indicated for symptomatic hallux valgus deformity with increased DMAA.