| 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 |
| KAFO | knee-ankle-foot orthosis |
| KAO | knee-ankle orthosis |