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LENGTHENING RECONSTRUCTION SURGERY FOR TREATMENT OF FIBULAR HEMIMELIA



Abstract

Introduction and Aims: Fibular hemimelia presents a problem with leg length discrepancy and equinovalgus foot deformity. Our protocol is to simultaneously treat both problems, with the goals of equalising limb length and achieving a plantigrade painless functional foot.

Method: Seventy-eight patients with fibular hemimelia underwent 92 lengthenings and foot deformity correction. Equinovalgus foot deformity was corrected by four different methods in 67 cases: distraction, soft tissue release, release plus supramalleolar and/or subtalar osteotomy, and fibular transport.

Results: Goals of lengthening and foot deformity correction were achieved in all cases. Foot deformity recurred in 19 patients and was retreated: 9/16 (56%) distraction cases, 4/18 (22%) soft tissue release cases, 2/28 (7%) release plus osteotomy cases, and 4/5 (80%) fibular transport cases. Genu valgum developed in many cases with no or partial anlage resection. Genu valgum did not develop in any cases with complete anlage resection. Final results based on functional and radiographic evaluation: 46 excellent, 28 good, 18 fair. Final result did not correlate with number of rays in foot.

Conclusion: Limb length discrepancy and foot deformity can be successfully treated by simultaneous lengthening and foot deformity correction. Soft tissue release plus osteotomy and complete anlage resection yielded best results. Lengthening reconstruction surgery is an excellent alternative to ablative surgery and prosthetic fitting for patients with all severities of fibular hemimelia.

These abstracts were prepared by Editorial Secretary, George Sikorski. Correspondence should be addressed to Australian Orthopaedic Association, Ground Floor, The William Bland Centre, 229 Macquarie Street, Sydney, NSW 2000, Australia.

At least one of the authors is receiving or has received material benefits or support from a commercial source.