Table 2.

Pre- and post-operative radiographic measurements

	All	Walkers (n = 13, 22 %)	Non-walkers (n = 46, 78 %)
NSA (°)
Pre-operative	152.3 ± 6.7	150.3 ± 4.5	152.8 ± 7.1
Correction	19.7 ± 9.3	14.0 ± 6.7	21.3 ± 9.4*1
Post-operative	132.6 ± 9.7	136.3 ± 7.5*	131.5 ± 10.1*
Last follow-up	137.2 ± 10.1	143.8 ± 11.0***	135.4 ± 9.1**
MP (%)
Pre-operative	63.6 ± 26.9	47.7 ± 22.4	68.3 ± 26.6
Post-operative	2.7 ± 5.9	8.2 ± 8.9*	1.2 ± 3.5*
Last follow-up	9.7 ± 9.2	12.2 ± 6.7*	8.9 ± 9.7*

Values ± standard deviation

p-Values account for inter-group to pre-operative comparison if not marked separately

p-Values: * p < 0.0001, *¹ < 0.011 (inter-group comparison), ** p = 0.049, *** NSS (not statistically significant)