Disarticulation
Pronunciation: dis-ar-tik-yoo-LAY-shun
Amputation performed through a joint rather than through the shaft of a bone, preserving the bony end of the proximal segment.
Full Definition
Disarticulation describes a surgical amputation in which the limb is separated at a joint surface (e.g., knee disarticulation, hip disarticulation, wrist disarticulation) rather than by cutting through bone. The resulting residual limb retains a rounded bony end, which can offer distinct prosthetic fitting advantages or challenges compared with through-bone amputations. Editors should distinguish 'knee disarticulation' from 'transfemoral amputation' and 'wrist disarticulation' from 'transradial amputation.' The term is typically used as a noun or in compound form ('hip disarticulation').
Usage
Usage note: Always specify the joint: 'knee disarticulation,' 'hip disarticulation,' etc. Standalone 'disarticulation' is ambiguous in clinical and insurance texts.
In Context
- "The operative note specified a knee disarticulation rather than a transfemoral amputation, a distinction critical for correct L-code assignment." — Operative report
- "Editors should confirm the exact joint named ('hip,' 'knee,' or 'wrist') when the text reads simply 'disarticulation.'" — Copy-editing guidance note