Table 2.

Unadjusted means (SD) for secondary outcomes across the trial

	RFA (n=30)				Sham (n=30)
Secondary Outcome*	Baseline	DOS	2-week FU	6-week FU	Baseline	DOS	2-week FU	6-week FU
Pain with ambulation	6.0 (2.4)	5.2 (2.2)	3.8 (1.8)	2.7 (1.8)	5.8 (1.8)	5.4 (2.2)	3.6 (1.7)	1.9 (1.5)
PROMIS Physical Function	37.8 (6.1)	40.0 (6.0)	36.3 (4.3)	41.4 (3.4)	36.5 (4.9)	37.1 (4.3)	37.1 (6.1)	44.0 (8.3)

^*All comparisons for changes from baseline to each follow-up between groups were non-significant based on between-subject t-tests.

DOS, day of surgery; FU, follow-up; PROMIS, Patient Reported Outcome Measurement Information System; RFA, radiofrequency ablation.