Table 3.

JADAD scores for included studies.

Author, year	JADAD Score
Robotic
Cobb et al., 2006	5
Bell et al., 2016	3 (blinding method not reported, reasons for withdrawal not reported)
Blyth et al., 2017	4 (reasons for withdrawal not reported)
Gilmour et al., 2018	5
Computer-navigation
Keene et al., 2006	3 (blinding not addressed)
Jean-Yves Jenny 2008	2 (randomization method not reported, blinding not addressed)
Lim et al., 2009	1 (inappropriate randomization, blinding not addressed)
Ollivier et al., 2016	4 (blinding method not reported)
Zhang et al., 2016	4 (blinding method not reported, reasons for withdrawal not reported)
Alvand et al., 2016	5