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