Table 2 Common peroneal nerve injuries characteristics of patients in case and control group
Variables | Total (n = 387) | Case group (n = 67) | Control group (n = 320) | P-value |
|---|---|---|---|---|
Side | 0.989 | |||
Left | 214 (53.77) | 37 (55.22) | 177 (55.31) | |
Right | 173 (43.47) | 30 (44.78) | 143 (44.68) | |
Duration (months) | 11.43 ± 21.18 | 12.42 ± 22.74 | 11.23 ± 20.97 | 0.519 |
Scar compression | 0.739 | |||
No | 195 (48.99) | 35 (52.24) | 160 (50.00) | |
Yes | 192 (48.24) | 32 (47.76) | 160 (50.00) | |
knee injury | ||||
Tibial plateau fracture** | 16 (4.02) | 8 (11.94) | 8 (2.50) | 0.001 |
Knee dislocation* | 16 (5.00) | 12 (3.10) | 4 (5.97) | < 0.001 |
Direct injury | 187 (46.98) | 30 (44.78) | 157 (49.06) | 0.523 |
Fracture of the proximal fibula* | 90 (23.26) | 30 (44.78) | 60 (18.75) | < 0.001 |
Anatomic factors* | 0.039 | |||
No | 356 (89.45) | 64 (95.52) | 12 (3.75) | 0.495 |
Yes | 31 (7.79) | 3 (44.78) | 4 (0.94) | 0.466 |
External compression | ||||
Plint/cast | 16 (4.13) | 4 (5.97) | 12 (3.75) | 0.495 |
Wrapping/bandage | 4 (1.03) | 0 (0.00) | 4 (1.25) | 0.466 |
Iatrogenic injury | ||||
Hip arthroplasty injury** | 7 (1.81) | 6 (8.96) | 1 (0.31) | < 0.001 |
Knee arthroplasty injury** | 13 (3.40) | 8 (11.94) | 5 (1.56) | < 0.001 |
Hip fracture** | 9 (2.26) | 5 (7.46) | 4 (1.25) | 0.009 |
Vascular injury** | 22 (5.68) | 15 (2.39) | 7 (2.19) | < 0.001 |
Muscle strength** | 233 (60.21) | 27 (40.30) | 206 (64.38) | < 0.001 |
Sunderland classification | < 0.001 | |||
I | 73 (18.86) | 15 (22.39) | 58 (18.13) | |
II | 86 (22.22) | 3 (4.48) | 83 (25.94) | |
III | 135 (34.88) | 37 (55.22) | 37 (55.22) | |
IV | 27 (6.98) | 18 (5.63) | 9 (13.43) | |
V | 66 (17.05) | 3 (4.48) | 63 (19.69) |