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General Orthopaedics

DISTRACTION OSTEOGENESIS FOR RECONSTRUCTION OF PRIMARY MALIGNANT TUMOURS OF THE LONG BONES

British Limb Reconstruction Society (BLRS)



Abstract

The purpose of this study is to provide a systematic review of the literature and assess outcome of our experience of Ilizarov Bone Transport in reconstruction for primary malignant tumours of bone (PMTB).

A systematic review of the literature for reported cases of primary reconstruction of PMTB using distraction osteogenesis was performed. All cases of distraction osteogenesis for primary reconstruction of PMTB in our institution were reviewed. Outcome was determined from retrospective review of case notes and radiology. Patients were contacted to define final status.

There are few cases of primary reconstruction of PMTB using Ilizarov method in the literature. Most reports relate to benign tumours or reconstruction of secondary deformities or non-union after tumour resection. At our institution we have treated 7 patients with bone defects resulting from excision of a PMTB. Mean age was 42.1 years (23–48). Tumours occurred in the tibia in 4 cases and the femur in 3 cases. Histologic diagnosis was chondrosarcoma in 3, malignant fibrous histiocytoma in 2, adamantinoma in 1 and malignant intraosseous nerve sheath tumour in 1.

All patients were assessed through the hospital sarcoma board and shown to have isolated bone lesions without metastases. Mean bone defect after resection was 13.1 cm (10–17). Mean frame time was 13.6 months (5–23). Mean follow-up was 46 months (15–137). Complications included pin infection, docking site non-union, premature fusion of corticotomy, soft tissue infection and minor varus deformity. There was one local recurrence of tumour at five months after resection, resulting in a through hip disarticulation. The other cases remain tumour-free with united, well-aligned bones and acceptable long-term function.

PMTB is rare and poses a major reconstructive dilemma. Distraction osteogenesis provides an effective method of biologic reconstruction in selected cases, and good outcomes can be achieved.