Orthopedic Oncology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
epiphysiodesis
Surgical fusion of a growth plate to prevent further longitudinal bone growth, sometimes necessary after tumor resection in skeletally immature patients.
adamantinoma
A rare primary bone tumor typically arising in the tibial diaphysis with epithelial and mesenchymal components.
ADL assessment
Evaluation of a patient's ability to perform activities of daily living, important for functional outcome measurement in...
AJCC staging
The American Joint Committee on Cancer staging system used to classify bone and soft tissue sarcomas based on tumor size...
allograft
Transplanted bone tissue from a donor of the same species used for reconstruction.
amputation level selection
The systematic process of determining the optimal site for surgical amputation to achieve tumor control while maximizing...
aneurysmal bone cyst
A benign expansile bone lesion characterized by blood-filled spaces and reactive bone formation.
biopsy tract
Path of tissue contamination created during needle or incisional biopsy that must be excised during definitive surgery.
bisphosphonate-related osteonecrosis
Bone death caused by long-term bisphosphonate therapy, typically affecting the jaw but occasionally complicating orthope...
bone marrow infiltration
Invasion of malignant cells into the bone marrow space, indicating advanced local disease or hematogenous spread.
bone scan
A nuclear medicine imaging study using technetium-99m to detect areas of increased bone metabolism, used for staging bon...
cement augmentation
The use of bone cement to strengthen bone weakened by tumor involvement, often performed to prevent pathological fractur...
chondroblastoma
A rare benign bone tumor arising from cartilage-forming cells, typically occurring in the epiphysis of long bones in ado...
chondrosarcoma
Malignant cartilage-producing tumor, typically affecting adults in their 40s-60s.
chordoma
A rare malignant bone tumor arising from notochordal remnants, typically occurring in the spine and skull base.
clear cell chondrosarcoma
A rare low-grade variant of chondrosarcoma characterized by cells with clear cytoplasm, typically affecting epiphyseal r...
Codman triangle
A triangular area of new bone formation at the edge of a bone lesion, visible on radiographs as a sign of aggressive bon...
compartmental anatomy
The anatomical organization of muscles, vessels, and nerves into distinct fascial compartments, crucial for surgical pla...
composite reconstruction
Reconstructive technique combining multiple materials or methods to restore complex defects after tumor resection.
cortical breakthrough
Tumor extension through the cortical bone into adjacent soft tissues, indicating local aggressive behavior.
cortical windowing
A surgical technique creating an opening in the cortical bone to access intramedullary lesions while preserving structur...
dedifferentiated chondrosarcoma
A high-grade malignant bone tumor containing both low-grade chondrosarcoma and high-grade non-cartilaginous sarcoma comp...
diaphyseal aclasis
A hereditary condition characterized by multiple cartilaginous exostoses arising from the metaphyses of long bones.
enchondroma
A benign cartilaginous tumor arising within the medullary cavity of bones, most commonly affecting the hands and feet.
endoprosthesis
Internal prosthetic device used to replace resected bone in tumor surgery.