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Peripheral Nerve Examination
| Ulnar n. | Median n. | Radial n. | |
|---|---|---|---|
| A (Anatomy) | FCU & ulnar ½ FDP | Flexor m. of forearm exc. by ulnar n. | Triceps m. Extensor m. of forearm |
| Intrinsic m. of hand exc. LOAF | Intrinsic m. by radial n. lumbrical thenar m. (1/2) (OAF) | ||
| Ulnar claw (extension of the 1st + 2nd lumbrical) | |||
| L (Lesion) | High | High lesion (CTS) | High lesion (spiral groove) |
| Less claw @ DIP? | Benedict hand | Wrist drop + finger drop | |
| Wasting @ medial forearm | Scars @ elbow | Scars @ elbow | |
| Scars @ epicondyle | Cigarette burns @ 2nd/3rd digits | ||
| Low | Low lesion | Low lesion (radial groove) | |
| More claw @ DIP? | Wrist drop | Finger drop | |
| Wasting @ hypothenar + dorsal guttering | Wasting @ thenar eminence | Wasting @ forearm (extensor muscles) | |
| Triceps reflex lost | |||
| F/M (Functional/Motor) | Thickening @ med epicondyle | Weakness of thumb abd / opposition | Triceps elbow extension |
| ST (Special Tests) | Froment's test (Add pollicis) | Opposition: Phalen's test | Anatomical snuffbox PIN syndrome (sensory intact) |
| Tinel sign @ med side | Pen test hand elevation | ||
| S (Sensation) | Ulnar border of @ little finger | Radial border of index finger | Anatomical snuffbox |
| Palmar surface, thenar eminence |
Sciatic Nerve Examination Notes:
- Sciatic n.:
- Foot drop (high stepping gait)
- L5 root: spare gastrocnemius (plantar flexion) & post thigh + leg
- L5 plexus: Sciatic n. + Glut medius
- Common peroneal n.: Both FL (Fibularis longus & brevis)
- Superficial peroneal n.: FL (ankle eversion)
- Deep peroneal n.: TA (tibialis anterior for ankle dorsiflexion)
Sensory:
- Saphenous (Femoral n.)
- Sural
- Superficial peroneal
- Deep peroneal
- Common peroneal
- Tibial n.
Motor:
- Thigh:
- L5 root
- F-A (Flexor-Adduction)
- G-P (Gluteus-Piriformis)
- Leg:
- PP-A (Post Peroneal-Ankle)
- SP-L (Superficial Peroneal-Leg)
- T-T (Tibial-Tendon)
Interactive Graph