Introduction
Methods
Study population
Postoperative rehabilitation
Isokinetic strength testing
Statistics
Results
Early | Delayed | Chronic | ||||
---|---|---|---|---|---|---|
Number (n) | 89 | 271 | 84 | |||
∆ Injury to surgery (in d, median (IQR) | 31 (17) | 78 (51) | 344 (652) | |||
Height (in m, Mean (SD)) | 1.76 (0.09) | 1.75 (0.09) | 1.74 (0.08) | |||
Weight (in kg, Mean (SD)) | 75.2 (13.0) | 76.4 (13.2) | 75.9 (12.6) | |||
BMI (Median (IQR)) | 24.1 (3.8) | 24.3 (4.2) | 24.5 (4.1) | |||
Age at surgery (in y, Median (IQR)) | 25.3 (14) | 26.8 (13) | 27.4 (18) | |||
Age according to subgroup | n | % | n | % | n | % |
10–19 | 14 | 16 | 43 | 16 | 19 | 23 |
20–29 | 44 | 50 | 116 | 43 | 27 | 32 |
30–39 | 15 | 17 | 64 | 24 | 17 | 20 |
40–49 | 10 | 11 | 36 | 13 | 18 | 21 |
> 50 | 6 | 7 | 12 | 4 | 3 | 4 |
Sex | ||||||
Male | 64 | 72 | 194 | 72 | 57 | 68 |
Female | 25 | 28 | 77 | 28 | 27 | 32 |
Dominant leg injured | 54 | 61 | 153 | 56 | 54 | 64 |
Sports classification [22] | ||||||
1 | 6 | 7 | 3 | 1 | 10 | 12 |
2 | 5 | 6 | 30 | 11 | 9 | 11 |
3 | 22 | 24 | 68 | 25 | 18 | 21 |
4 | 56 | 63 | 170 | 63 | 47 | 56 |
Preoperative values | Extension | LSI Ex | Flexion | LSI Flex | H/Q ratio | |
---|---|---|---|---|---|---|
Mean ± SD (Nm/kg) | Mean ± SD (%) | Mean ± SD (Nm/kg) | Mean ± SD (%) | Mean ± SD | ||
Early | OP | 1.31 ± 0.53# | 68 ± 22.6+ | 0.95 ± 0.38# | 72.2 ± 23.8+ | 74.3 ± 16.3# |
n = 89 | NOP | 1.94 ± 0.43+ | 1.32 ± 0.31+ | 68.7 ± 10.6 | ||
Delayed | OP | 1.43 ± 0.57# | 74.9 ± 23.9+ | 1.02 ± 0.37# | 81.4 ± 24.0+ | 77.0 ± 29.2# |
n = 271 | NOP | 1.98 ± 0.46+ | 1.25 ± 0.3+ | 67.1 ± 11.6 | ||
Chronic | OP | 1.4 ± 0.52# | 79.0 ± 23.8 | 1.02 ± 0.32# | 88.8 ± 22.3 | 80.3 ± 41.2# |
n = 84 | NOP | 1.78 ± 0.44 | 1.15 ± 0.27 | 65.9 ± 10.4 |
Postoperative values | Extension | LSI Ex | Flexion | LSI Flex | H/Q ratio | |
---|---|---|---|---|---|---|
Mean ± SD (Nm/kg) | Mean ± SD (%) | Mean ± SD (Nm/kg) | Mean ± SD (%) | Mean ± SD | ||
Early | OP | 1.65 ± 0.45#+ | 81.1 ± 15.4 | 1.22 ± -29*# | 88.2 ± 13.1 | 76.9 ± 17.0# |
n = 89 | NOP | 2.04 ± 0.45+ | 1.40 ± 0.3* | 69.3 ± 9.75 | ||
Delayed | OP | 1.62 ± 0.52# | 80.3 ± 19.0 | 1.18 ± 0.3# | 86.0 ± 13.8 | 76.8 ± 21.0# |
n = 271 | NOP | 2.02 ± 0.44 | 1.37 ± 0.28 | 68.9 ± 10.5 | ||
Chronic | OP | 1.51 ± 0.49# | 79.2 ± 19.0 | 1.13 ± 0.3# | 88.7 ± 14.0 | 80.2 ± 27.7# |
n = 84 | NOP | 1.91 ± 0.46 | 1.27 ± 0.3 | 67.7 ± 11.1 |