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Pelvic osteosarcoma. Resection, reconstruction, local control, and survival statistics
1Orthopaedic Department, Technical University Munich, Germany.
Clinical Orthopaedics and Related Research
|September 1, 1991
Summary
This study shows that cementless prosthetic reconstruction after Type IIC pelvic tumor resection can yield good functional outcomes. Three-dimensional planning is crucial for accurate reconstruction and improved results.
Area of Science:
- Orthopedic Oncology
- Reconstructive Surgery
- Pelvic Tumors
Background:
- Periacetabular malignant tumors present complex surgical challenges.
- Effective reconstruction is vital for restoring function and improving patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of cementless, adaptable prosthetic reconstruction following Type IIC periacetabular tumor resection.
- To assess the utility of three-dimensional (3D) planning in pelvic reconstruction.
Main Methods:
- Nine patients with periacetabular malignant tumors underwent Type IIC resection and cementless prosthetic reconstruction.
- A novel 3D planning strategy was employed in two cases.
- Tumor types included chondrosarcoma, Ewing sarcoma, osteosarcoma, and thyroid cancer metastases.
- Surgical margins were wide, marginal, or intralesional in three cases each.
Main Results:
- Functional outcomes were good in five patients, fair in three, and poor in one.
- Four patients died due to local recurrence or lung metastases, all with marginal or intralesional resections.
- Histologic analysis of a retrieved specimen showed successful bone ingrowth.
- 3D planning facilitated precise anatomic reconstruction of the pelvic ring.
Conclusions:
- Cementless prosthetic reconstruction following Type IIC resection is a viable option for periacetabular tumors.
- Three-dimensional planning significantly aids in achieving accurate and functional pelvic reconstructions.
- Achieving wide surgical margins is critical for preventing local recurrence and improving survival.