| MRI | Magnetic resonance imaging |
| EP | External tibial plateau |
| EPS | External popliteal sciatic nerve |
| IPS | Internal popliteal sciatic nerve |
| PC | Posterior capsule |
| PA | Popliteal artery |
| IP | Internal tibial plateau |
| IM | Intercondylar midline |
| TKA | Total knee arthroplasty |
| IPA | Intraoperative periarticular analgesic |
| SEM | Standard error mean |
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