SURGICAL-MANAGEMENT OF INNOMINATE GIANT-CELL TUMOR

The surgical outcome for innominate giant cell tumors was reviewed in 7 patients; 6 (86%) were female patients and 1 (14%) was a male patien t, The patients had an average age of 28.7 years (range, 16-42 years) and an average followup of 4.6 years (range, 2.0-7.3 years), Three tum ors were in the ischiopubic region, 3 were acetabular, and 1 was ilios acral, The tumors ranged in size from 5 cm x 6 cm to 17 cm x 18 cm, Al l margins were intralesional. Reconstruction in 3 cases used osteoarti cular acetabular allografts, The local recurrence rate was 3 of 7 (43% ), Ischiopubic tumors accounted for all recurrences, Vascular invasion was seen in all patients who had a recurrence and only 1 patient with out a recurrence, Patients with recurrences underwent subsequent resec tions and radiation therapy, and remain disease free at an average fol lowup of 3.0 years (range, 0.8-4.2 years) after recurrence, There were no malignant, metastatic, or multicentric recurrences, and no patient died of disease or complications, Innominate giant cell tumor occurs most often in women and is associated with a high risk for local recur rence, Wide margins usually are not possible; intralesional margins ar e accepted in cases of limited accessibility or potential functional c ompromise.