Most commonly injected muscles and technique within each upper limb segment
| Group/muscle | Total number injected (%)* | Number of units: median (IQR) | Range of units (min, max) | Multiple points (%) | Use of EMG (%) | Electrical stimulation (%) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dysport | Dysport | Botox | Xeomin | Dysport | Botox | Xeomin | ||||
| Shoulder | n=147 (32.2) | |||||||||
| Pectoralis major | 88 (19.3) | 200.0 (150.0) | 30.0 (40.0) | 70.0 (30.0) | 30, 750 | 10, 100 | 20, 140 | 55 (62.5) | 11 (12.5) | 25 (28.4) |
| Teres major | 17 (3.7) | 75.0 (50.0) | 10.0 (10.0) | 50.0 (60.0) | 50, 200 | 10, 50 | 40, 100 | 2 (11.8) | 8 (47.1) | 8 (47.1) |
| Deltoideus | 15 (3.3) | 100.0 (100.0) | 50.0 (0.0) | N/A | 50, 300 | 50, 50 | N/A | 1 (6.7) | 3 (20.0) | 7 (46.7) |
| Subscapularis | 14 (3.1) | 200.0 (100.0) | 30.0 (0.0) | 50.0 (0.0) | 75, 320 | 20, 40 | 50, 50 | 3 (21.4) | 1 (7.1) | 11 (78.6) |
| Latissimus dorsi | 9 (2.0) | 120.0 (125.0) | 55.0 (90.0) | 40.0 (0.0) | 75, 200 | 10, 100 | 40, 40 | 6 (66.7) | 4 (44.4) | 2 (22.2) |
| Upper arm | n=336 (73.7) | |||||||||
| Biceps brachii | 270 (59.2) | 200.0 (150.0) | 50.0 (10.0) | 55.0 (40.0) | 50, 750 | 20, 100 | 20, 100 | 208 (77.0) | 52 (19.3) | 70 (25.9) |
| Brachialis | 130 (28.5) | 150.0 (100.0) | 50.0 (20.0) | 60.0 (27.5) | 20, 400 | 10, 100 | 30, 80 | 76 (58.5) | 30 (23.1) | 62 (47.7) |
| Triceps brachii | 18 (3.9) | 175.0 (100.0) | 30.0 (25.0) | N/A | 60, 300 | 20, 100 | N/A | 15 (83.3) | 8 (44.4) | 8 (44.4) |
| Lower arm | n=434 (95.2) | |||||||||
| Flexor digit. superficialis | 325 (71.3) | 150.0 (100.0) | 50.0 (35.0) | 60.0 (37.5) | 20, 500 | 15, 150 | 30, 100 | 195 (60.0) | 91 (28.0) | 151 (46.5) |
| Flexor digit. profondus | 265 (58.1) | 150.0 (100.0) | 50.0 (30.0) | 50.0 (20.0) | 50, 600 | 15, 150 | 20, 200 | 142 (53.6) | 66 (24.9) | 114 (43.0) |
| Flexor carpi radialis | 262 (57.5) | 125.0 (100.0) | 33.3 (25.0) | 45.0 (40.0) | 20, 350 | 5, 100 | 20, 80 | 83 (31.7) | 73 (27.9) | 99 (37.8) |
| Brachioradialis | 156 (34.2) | 112.5 (100.0) | 40.0 (35.0) | 50.0 (20.0) | 25, 300 | 10, 75 | 20, 75 | 55 (35.3) | 29 (18.6) | 46 (29.5) |
| Pronator teres | 138 (30.3) | 100.0 (75.0) | 40.0 (25.0) | 40.0 (30.0) | 25, 500 | 10, 100 | 10, 50 | 44 (31.9) | 26 (18.8) | 53 (38.4) |
| Flexor pollicis longus | 136 (29.8) | 100.0 (50.0) | 25.0 (12.5) | 35.0 (30.0) | 20, 250 | 5, 50 | 10, 60 | 29 (21.3) | 31 (22.8) | 79 (58.1) |
| Hand/fingers | n=204 (44.7) | |||||||||
| Flexor pollicis brevis | 47 (10.3) | 50.0 (50.0) | 15.0 (12.5) | 20.0 (0.0) | 10, 200 | 5, 30 | 20, 40 | 7 (14.9) | 6 (12.8) | 19 (40.4) |
| Adductor pollicis | 37 (8.1) | 50.0 (22.5) | 25.0 (15.0) | 20.0 (20.0) | 20, 125 | 10, 30 | 10, 30 | 0 | 8 (21.6) | 10 (27.0) |
| Lumbricales | 32 (7.0) | 100.0 (120.0) | 25.0 (10.0) | 40.0 (47.5) | 50, 400 | 15, 40 | 20, 75 | 29 (90.6) | 8 (25.0) | 11 (34.4) |
| Interossei dorsales | 22 (4.8) | 150.0 (150.0) | 25.0 (30.0) | N/A | 50, 375 | 10, 80 | N/A | 20 (90.9) | 6 (27.3) | 9 (40.9) |
| Opponens pollicis | 18 (3.9) | 50.0 (50.0) | 30.0 (20.0) | 5.0 (0.0) | 10, 120 | 20, 40 | 5, 5 | 0 | 3 (16.7) | 9 (50.0) |
Percentages are based on the number of participants injected in the muscle, except * for which percentages are based on the number of participants in the efficacy population.
EMG, electromyography; IQR, interquartile range.