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Egyptian Rheumatology and Rehabilitation
Fig. 2 | Egyptian Rheumatology and Rehabilitation

Fig. 2

From: The sensitivity of median versus ulnar palmar mixed nerve study in the early diagnosis of carpal tunnel syndrome

Fig. 2

Median versus ulnar mixed orthodromic sensory study technique. a MN recording electrodes at the wrist with G1 placed over the middle of the wrist between FCR and PL tendons and G2 placed 3–4 cm proximally. Stimulating electrode in the palm: 8 cm from the G1 on a line drawn from the median wrist to the web space between the index and middle fingers. b UN recording electrodes at the wrist with G1 placed over the medial wrist, adjacent to the FCU tendon, and G2 placed 3–4cm proximally. Stimulating electrode in the palm: 8cm from the active recording electrode on a line drawn from the ulnar wrist space between the ring and little fingers

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