Advertisement for orthosearch.org.uk
Orthopaedic Proceedings Logo

Receive monthly Table of Contents alerts from Orthopaedic Proceedings

Comprehensive article alerts can be set up and managed through your account settings

View my account settings

Visit Orthopaedic Proceedings at:

Loading...

Loading...

Full Access

SCARF OSTEOTOMY FOR CORRECTION OF HALLUX VALGUS: PEDOBAROGRAPHIC EVALUATION



Abstract

Introduction

Hallux Valgus was thought to alter the forefoot function with defuctioning of the first ray with a resulting overloading of the second ray. The scarf osteotomy is a z-osteotomy of the first metatarsal and is proposed to correct anatomical and functional deformities of hallux valgus. This study was conducted to evaluate forefoot pressures using the Musgrave foot print system following this procedure in a district general hospital.

Method

We prospectively collected the data from 43 feet in 31 consecutive patients. We evaluated the forefoot function using peak pressure, force time integral and pressure time integral parts of pedobarographs (Musgrave) pre-operatively, three and six months postoperatively.

Results

The mean peak pressure under the first metatarsal head was reduced from 3.09 (95% CI 2.49 −3.70) to 2.25 (95% CI1.80–2.71) at six months. The mean peak pressure under the second metatarsal head was reduced from 6.29 (95% CI 5.44–7.13) to 5.01 (95% CI 3.98–6.05) at six months. Force time integral under the first metatarsal head was reduced from 1.34 (95% CI 1.06–1.62) to 0.97 (95% CI 0.74–1.19)) at six months. Force time integral under the second metatarsal head also reduced from 2.66 (95% CI 2.27–3.06) to 2.41(95% CI 1.98–2.85). Pressure time integrals also showed similar changes.

Conclusion

Scarf osteotomy produced decrease in the forefoot pressures under the medial part of forefoot. We have not noticed significant alteration of forefoot pressures under the lateral part of forefoot.

The abstracts were prepared by Mr J. L. Barrie. Correspondence should be addressed to Mr J. L. Barrie, BOFSS Editor, Department of Orthopaedic Surgery, Blackburn Royal Infirmary, Blackburn, Lancashire BB2 3LR.