In osteosarcoma, one strives for removal in healthy tissue with a safety margin (tumor-free resection margins).
The following form of surgical therapy is available:
- Wide resection – method of choice for malignant (malignant) bone tumors.
- Procedure: wide and radical resection (surgical removal) of the tumor with a safety margin of 5 cm (proximal (toward the center of the body) and distal (away from the center of the body)).
- After tumor removal, osteosynthesis (insertion of a spongiosaplasty) or reconstruction of the resulting bone defect is performed, e.g., in the form of a tumor endoprosthesis, a bone graft, or muscle, nerve, and vascular replacement plastics. For children, growing endoprostheses (joint replacement) are suitable.
- Through the use of mega endoprostheses amputations of the affected limb are now rarely necessary (“Ultima ratio” (last resort)).
Parosseous osteosarcoma and low-malignant osteosarcoma are usually treated purely surgically, unless metastases are detectable.
Over 80% of osteosarcomas can be operated on in an extremity-preserving manner.
Metastases are also resected.
