Page 78 - Reconstructive Techniques in Musculoskeletal Tumor Surgery

Chapter 4
Figures 2A-D. (A) Case discussion of a 44-year-old male patient. T2-weighted MR image in the transverse plane shows a bulky mass, originating in the right acetabulum and in ltrating the hip joint. CT-guided biopsy showed a grade 2 chondrosarcoma. (B) Conventional radiograph displaying the situation after type 2–3 internal hemipelvectomy and subsequent reconstruction. Reconstruction was performed with an uncemented LUMiC stem (75 mm long, 10-mm core diameter), a 54-mm outer diameter HA-coated cup, and an uncemented Mallory-Head total hip prosthesis (Biomet, Warsaw, IN, USA) with a 28-mm femoral head. (C) CT scan displaying the position of the LUMiC stem in the coronal plane with its tip close to the sacroiliac joint. (D) CT scan displaying the position of the LUMiC stem in the sagittal plane.
Forty-seven patients (26 males [55%]) with a mean age of 50 years (range, 12 – 78 years) were included (table 1). At review, 32 patients (68%) were alive and 15 (32%) had died (nine of disease). Two patients with a metastatic tumor were referred to their local hospital and died within two years. The contributing center checked with their local hospital; no revisions or reoperations were undertaken before they died. One patient was lost to follow-up before two years and was excluded. The reverse Kaplan-Meier method was used to calculate median follow- up, which was equal to 3.9 years (95% con dence interval [CI], 3.4 – 4.3).
Fifteen patients were treated in center 1; other centers had seven, six, ve, four, four, four, and two patients, respectively. The indication for pelvic resection was a primary bone tumor in 38 patients (81%; predominantly conventional
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