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General Orthopaedics


British Orthopaedic Association (BOA) 2005


Chondrosarcoma is a malignant tumour and accounts for approximately 20% of bone sarcomas. The pelvis is one of the commonest sites. Chondrosarcoma of the pelvis lends itself to surgical excision and is relatively resistant to irradiation and chemotherapy. A long term survival analysis of this challenging condition is rarely reported in literature. We review and evaluate the oncological and functional results of all the patients operated at our centre and we analyse the survival analysis of these patients with special focus on the prognostic factors.

Fifty-four consecutive patients with chondrosarcoma of the pelvis who were treated at the Royal National Orthopaedic Hospital, Stanmore, UK between 1987 and 2001 were included in the study. Demographic data, case notes, histopathological results and follow-up data were obtained and statistically analysed.

There were 38 males and 16 females with a mean age of 48.4 years [18-77]. The chondrosarcomas were primary [n=38], secondary [n-7] or recurrences [n=9]. The anatomical sites in the pelvis were in the epicentre I [n=24], II [n=20] and III [n=10]. The surgical procedures performed were local resection [n=28], local resection and hip arthroplasty [n=6], hemipelvectomy (+endoprothesis) [n=16], hemipelvectomy [+fibular strut graf] [n=2] and hinquarter amputation [n=2]. The histological grade was Gr [n=27], Gr 2[n=20] and Gr 3 [n=7]. The complication rate was 24%:wound revision [9%], dislocation [8%] and infection [7%]. There was a 5, 10 and 15 year cumulative survival rate of 74%, 65% and 40%. The overall recurrence rate was 24%.

The factors associated with a worse prognosis were high histologic tumour grade, increasing patient age, anatomical location in site I and III, primary surgery outside of tumour centre, inadequate surgical margins, and those treated by local extension. Aggressive surgical approach significantly improves the prognosis of the patients with chondrosarcoma of the pelvis.