| HKAO | hip-knee-ankle orthosis |
|---|---|
| HTK | heel to knee |
| IBF | immature brown fat; immunoglobulin-binding factor; Insall-Burstein-Freeman [total knee instrumentati... |
| IDK | internal derangement of knee |
| IK | immobilized knee; immune body [Ger. Immunekorper]; Infusoria killing [unit]; interstitial keratitis |