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Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 351 - 351
1 Jul 2011
Tsibidakis H Mazis G Sakellariou V Patapis P Kostopanagiotou G Papaggelopoulos P
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Presentation of two cases of pelvic periacetabular sarcoma, which were treated with wide resection of the tumor, pelvic reconstruction and lower limb salvage.

Two patients, one male 23 y.o. with chondrosarcoma and one female 75 y.o. with chondroblastic osteosarcoma, were treated in our clinic. Both tumors were stage II according to Enneking’s classification. Both tumors were treated with Enneking type II internal hemipelvectomy due to their periacetabular localization. After wide resection of tumors, pelvic deficit was reconstructed with allograft, which was internally fixated, and total hip replacement with constrained prosthesis.

Clinical evaluation showed absence of pain and satisfactory function of the limb. Imaging evaluation with x-ray, 3D-scan kai MRI showed satisfactory position and condition of allograft and internal fixation without evidence of loosening. Non weight bearing mobilization commenced 3 weeks postoperatively.

Internal hemipelvectomy requires precise preoperative planning and surgical knowledge because it is technically demanding due to complex structure of the pelvis, the great number of muscular attachments and the presence of important vessels, nerves and pelvic viscera. Wide pelvic resection and reconstruction with allograft for periacetabular sarcomas is a challenging procedure, which offers the opportunity of limb salvage associated with functional outcome.