| 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 |
| KB | human oral epidermoid carcinoma cells; Kashin-Bek [disease]; ketone body; kilobyte; Kleihauer-Betke ... |