Descriptive patient data for the ulnar nerve and the frequency of F wave abnormalities
| Diagnosis | n | Fmin | Fmax | Fmean | Fp | Fc | Total | |
|---|---|---|---|---|---|---|---|---|
| A: | ||||||||
| PNP | 18 | 8 | 5 (0) | 8 (0) | 4 (1) | 0 (0) | 9 | |
| C5/6 | 4 | — | — | — | — | — | — | |
| C7 | 10 | 1 | 1 (0) | 1 (1) | — | — | 2 | |
| C8 | 4 | — | 1 (1) | 1 (0) | 1 (1) | 2 (1) | 3 | |
| Elbow | 78 | 7 | 7 (5) | 12 (5) | 5 (4) | 3 (3) | 24 | |
| MonoN/plexopathy | 29 | 1 | 2 (1) | 2 (1) | 6 (4) | 2 (1) | 8 | |
| Normal subjects | 31 | — | — | — | 1 (1) | 1 (1) | 2 | |
| Total | 174 | 17 | 16 (7) | 24 (7) | 17 (11) | 8 (6) | 48 | |
| B: | ||||||||
| PNP | 7 | 4 | 1 (0) | 4 (0) | 2 (1) | — | 5 | |
| C5/6 | 4 | — | — | — | — | — | — | |
| C7 | 9 | 1 | — | 1 (0) | — | — | 1 | |
| C8 | 1 | — | — | — | — | — | — | |
| Elbow* | 53 | 1 | 2 (2) | 4 (3) | 4 (4) | 1 (1) | 11 | |
| MonoN/plexopathy† | 13 | 1 | 1 (1) | 1 (0) | 3 (2) | 1 (0) | 4 | |
| Normal subjects | 30 | — | — | — | 1 (1) | — | 1 | |
| Total | 117 | 7 | 4 (3) | 10 (3) | 10 (8) | 2 (1) | 22 |
Elbow=Ulnar mononeuropathies at the elbow; elbow*=patients with normal motor conduction in the forearm segment of the ulnar nerve; plexopathy†=plexopathies with upper trunk involvement and normal conduction in the ulnar nerve. Other abbrevations as in table 3.