Internal hemipelvectomy and reconstruction with a megaprosthesis

Abstract. We treated nine consecutive patients by internal hemipelvectomy and reconstruction with custom-made megaprosthesis between 1990 and 1997. Four had a primary malignant bone or soft tissue tumour, one a recurrent benign giant cell tumour, three solitary metastatic bony lesions, and one a pelvic defect secondary to multiple revision procedures after total hip replacement. After a mean follow-up period of 62 (40–102) months five patients were still alive, including four of the eight patients with tumours. Three patients died as a result of the malignant disease, and one died of an infection related to the surgical treatment after 10–41 months. In two patients removal of the prosthesis was required due to infection, and six patients suffered various complications. One patient had an excellent outcome.Résumé. Nous avons traité neuf malades consécutifs avec hémipelvectomie interne et reconstruction par megaprostheses faites sur mesure entre 1990 et 1997. Quatre patients avaient une tumeur maligne osseuse ou des parties molles, un avait une récidive d'une tumeur à cellules géantes, trois des lésions métastatiques osseuses isolées et un une perte de substance pelvienne dûe à de multiples révisions de prothèse totale de la hanche. Àprés un suivi de 62 (40–102) mois cinq malades vivaient encore dont quatre des huit malades avec tumeur. Trois malades sont morts à cause de la maladie maligne, et un est mort d'une infection secondaire à la chirurgie, les quatres dans un délai de 10 à 41 mois. Pour deux malades, l'ablation de la prothèse a été nécessaire à cause d'une infection et six autres ont eu des complications diverses. Un malade avait un excellent résultat.

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