Table 3.

Mean values and standard deviation of alignment and postoperative WOMAC score

	N	Mean	Median	SD	Min	Max	Percentile
							25	50	75
MecAx Pre	23	2.73	3.00	2.86	− 2.30	7.30	0	3	5
MecAx Post	23	− 2.83	− 2.9	2.54	− 9.8	1.3	− 4.3	− 2.9	− 1
MecAx Diff	23	− 5.53	− 5.88	2.77	− 11.38	2	− 7.5	− 5.88	− 4
Pain	23	6.22	6	5.56	0	17	1	6	9
Stiffness	23	2.83	2	2.41	0	8	1	2	4
Daily activities	23	17.43	19	16.93	0	57	4	19	22
Total WOMAC	23	25.43	21	21.99	0	71	6	21	36.00