Orthonotes
by the.bonestories
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A lytic bone lesion on X-ray should be approached systematically using five steps: patient age (the single most powerful clue — under 20 favours benig...
The unhappy triad (O'Donoghue triad) is a combined knee injury involving the ACL, MCL, and medial meniscus, classically caused by a valgus contact for...
Used after wide resection of distal femur/proximal tibia tumors. Modular systems allow intraoperative flexibility and immediate stability. Expandable...
Biopsy is critical for diagnosis but must follow strict oncological principles. Plan biopsy with final surgery in mind; incision should be longitudina...
Most common primary malignant bone tumor in adolescents (after myeloma overall). Sites: metaphysis of long bones—distal femur, proximal tibia, proxima...
Second most common primary malignant bone tumor after osteosarcoma, usually >40 years. Common sites: pelvis, femur, humerus, ribs. Graded histological...
Used for segmental bone loss after tumor resection or non-oncologic massive defects (failed revision arthroplasty, periprosthetic fractures). Common s...
Indicated for skeletally immature patients undergoing limb-salvage near a growth plate (e.g., distal femur/proximal tibia). Designs: minimally invasiv...
Oncologic principles: accurate diagnosis, staging (MRI, PET/CT), biopsy planning, and **wide margins**. Indications: resectable tumors with adequate s...