Sensitivity of the Rydel-Seiffer (RS) tuning fork compared with the Vibrameter in patients with a mild polyneuropathy (chosen specificity of 95%)
| Location | RS tuning fork: patients with abnormal vibration (n (%)) | Vibrameter: patients with abnormal vibration (n (%)) |
|---|---|---|
| Ulnar styloid process | 17 (29) | 18 (31) |
| Index finger | 19 (32) | 19 (32) |
| Internal malleolus | 34 (58) | 28 (48) |
| Hallux | 45 (76) | 43 (73) |
| Sites examined with abnormal sense of vibration: | ||
| 0 | 10 (17) | 13 (22) |
| 1 | 12 (20) | 10 (17) |
| 2 | 19 (32) | 18 (31) |
| 3 or 4 | 18 (31) | 18 (31) |