Table 1.
Clinical characteristics of the patients
| N° | Age | Sex | Affected side/handedness | Duration (years) | Triggering activities | Dystonic movements/posture |
|---|---|---|---|---|---|---|
| 1 | 57 | F | R/R | 11 | writing | flex. I, II, III, wrist flex. |
| 2 | 52 | F | R/R | 22 | writing drawing, precise movements | fingers & wrist flex. |
| 3 | 46 | F | R/R | 10 | writing | flex. I, II, wrist ext. & add. |
| 4 | 57 | M | R/R | 8 | writing | flex. I, II, III |
| 5 | 34 | M | R/R | 4 | writing typing | ext. II |
| 6 | 58 | M | R+L/R | R: 30 L: 15 |
writing drawing | R: wrist flex. & add, flex. I, III L: wrist flex., ext. I, flex. II, V |
| 7 | 56 | F | R/R | 8 | writing | wrist ext. & add, flex. I, II, III |
| 8 | 24 | M | R+L/R | R:11 L: 2 |
writing contact of palm with an object | R: myoclonus L: wrist flex. & add. |
| 9 | 52 | F | R/R | 3 | writing | wrist flex. |
| 10 | 47 | F | R/R | 8 | writing computer | ext. I, wrist ext. & abd. |
| 11 | 55 | F | R/R | 35 | writing | flex. III, IV, wrist add. |
| 12 | 38 | F | R/R | 9 | writing | wrist abd. |
| 13 | 40 | F | L/L | 4 | writing | flex. II |
| 14 | 24 | F | R/R | 4 | writing computer | tremor, wrist and finger flex. |
| 15 | 59 | F | R/R | 16 | writing | ext. I, flex. II, wrist flex. & add. |
Abbreviations. Abd.: abduction, add.: adduction, ext.: extension, F: female, flex.: flexion, L: left, M: male, R: right, WC: writer’s cramp, I: thumb, II: index finger, III: middle finger, V: little finger.