Table 3 Medians, minima and maxima for the distribution of SF-36 physical and mental scale (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
| SF-36 physical scale [range 0 - 100%] | ||||
|---|---|---|---|---|
| approach | preoperative | four weeks | six weeks | three months |
|
posterior
direct lateral p-value |
26 (8-64) 28 (9-70) 0.515 |
36 (13-68) 33 (12-61) 0.359 |
44 (21-91) 40 (17-70) 0.879 |
50 (19-92) 49 (14-91) 0.426 |
| SF-36 mental scale [range 0 - 100%] | ||||
| approach | preoperative | four weeks | six weeks | three months |
|
posterior
direct lateral p-value |
60 (22-89) 53 (12-87) 0.455 |
62 (28-82) 48 (12-86) 0.085 |
68 (34-89) 54 (22-91) 0.175 |
78 (20-94) 69 (26-90) 0.439 |