Corticotomy
Pronunciation: kor-ti-KOT-uh-mee
Surgical division of bone cortex without disrupting the medullary canal or periosteum.
Full Definition
A corticotomy involves making a controlled cut through the cortical bone while preserving the medullary blood supply and periosteal envelope. This technique is commonly used in limb lengthening procedures, deformity correction, and some fracture healing enhancement strategies. Unlike an osteotomy, which completely divides the bone, a corticotomy maintains continuity of the inner bone structures, allowing for controlled bone regeneration and remodeling. The procedure stimulates local bone formation while minimizing complications associated with complete bone division.
Usage
Usage note: Distinguish clearly from osteotomy in surgical documentation.
In Context
- "A proximal tibial corticotomy was performed to stimulate healing at the nonunion site." — Operative report
- "The corticotomy technique preserved periosteal blood supply while promoting bone formation." — Surgical technique article