Table 2 Medians, minima and maxima for the distribution of WOMAC sub scores for pain, stiffness and daily life activities (range 0 - 100%, 100% = optimum rating) before and four, six, 12 weeks after posterior versus direct lateral approach; p-values derived from two sample Wilcoxon test at each assessment time, respectively
WOMAC sub scores [0 - 100%] | approach | preoperative | four weeks | six weeks | three months |
|---|---|---|---|---|---|
pain | posterior direct lateral p-value | 40 (0-100) 47 (0-80) 0.383 | 73 (24-100) 78 (0-100) 0.571 | 80 (36-100) 84 (0-100) 0.870 | 91 (34-100) 88 (0-100) 0.182 |
stiffness | posterior direct lateral p-value | 38 (0-80) 45 (0-80) 0.313 | 70 (25-95) 75 (10-100) 0.128 | 80 (35-100) 80 (20-100) 0.827 | 85 (30-100) 80 (20-100) 0.231 |
daily activity | posterior direct lateral p-value | 35 (0-67) 47 (0-76) 0.055 | 63 (14-92) 62 (0-90) 0.799 | 72 (25-95) 74 (0-96) 0.773 | 84 (45-97) 81 (0-100) 0.476 |