Table 1. PFI comparisons in the preoperative period (pre-op), in week 1 (W1) and week 2 (W2).

Group	Gait analysis			p-value (time)	Evolution	p-value (groups x time)
	Pre-op	W1	W2
No irradiation	-37.9 ± 14.0	-39.2 ± 7.3	-22.1 ± 26.8	0.091	-10.8% ± 92.9%	0.139
Sham	-37.1 ± 17.3	-32.5 ± 19.3	-25.0 ± 13.6	0.238	9.2% ± 81.4%
5 J/cm2	-36.2 ± 17.0	-33.9 ± 31.0	-37.1 ± 14.8	0.956	-21.1% ± 60.7%
10 J/cm2	-29.5 ± 11.0	-40.8 ± 31.7	-41.5 ± 21.2	0.381	-68.7% ± 115.5%
20 J/cm2	-22.0 ± 36.3	-41.7 ± 13.6	-39.6 ± 5.4	0.073	-17.6% ± 52.7%
p-value (groups)	0.399	0.851	0.058		0.334