hemicortical resection
Pronunciation: HEM-ee-kor-tih-kul
Surgical removal of approximately half the circumferential cortex while preserving the medullary canal and remaining cortical bone.
Full Definition
Hemicortical resection is a bone-preserving surgical technique that involves removal of approximately half the circumferential cortex of a long bone while maintaining the integrity of the medullary canal and the remaining cortical bone. This approach is typically used for surface tumors such as parosteal osteosarcoma or aggressive benign lesions that involve only a portion of the bone's circumference. The procedure allows for tumor removal with adequate margins while preserving bone stock and mechanical strength better than intercalary resection. Reconstruction may involve bone grafting or cement augmentation to restore cortical continuity and strength.
Usage
Usage note: Hyphenate when used as a compound modifier.
In Context
- "Hemicortical resection was performed for the parosteal osteosarcoma with immediate reconstruction using morselized allograft." — Operative report
- "The surface location of the tumor made it amenable to hemicortical resection rather than intercalary reconstruction." — Preoperative planning note