Meta-analysis of factors influencing anterior knee pain after total knee arthroplasty

Table 3 The basic information of the studies (with or without circumpatellar denervation)

Ref.	Follow-up time	Patients available (denervation/non-denervation)	Score	Denervation		Non-denervation
				Mean	SD	Mean	SD
Kwon et al[26], 2015	5 yr	50/50	PFS	14.10	1.00	14.20	1.20
Goicoechea et al[25], 2021	1 yr	88/81	PFS	12.60	3.50	13.60	2.70
Altay et al[27], 2012	3 yr	35/35	VAS	2.20	1.10	2.82	1.20
Deekshith et al[30], 2020	2 yr	50/49	VAS	1.34	0.47	1.60	0.53

VAS: Visual analog scale; PFS: Patellofemoral Feller score.