Table 2.

Methodological index for non-randomized studies (MINORS)

References	1	2	3	4	5	6	7	8	9	10	11	12	TOT
Schai et al. [33]	2	0	1	2	0	2	2	0	–	–	–	–	9/16
Fisher et al. [10]	2	2	2	2	0	2	1	0	–	–	–	–	11/16
Walton et al. [46]	0	0	1	1	0	2	1	0	2	1	2	1	11/24
Naal et al. [25]	2	2	1	2	0	2	1	0	–	–	–	–	10/16
Hopper and Leach [16]	2	2	1	1	0	1	1	0	1	2	1	1	13/24
Naal et al. [26]	2	2	1	2	0	1	2	0	–	–	–	–	10/16
Pandit et al. [28, 29]	2	2	2	2	2	1	0	0	–	–	–	–	11/16
Yim et al. [50]	2	1	2	2	0	2	2	2	1	2	2	2	20/24
Liddle et al. [21]	2	2	2	2	2	2	2	0	–	–	–	–	14/16
Pandit et al. [30]	2	0	2	2	2	2	2	2	2	2	2	2	23/24
Pietschmann et al. [32]	1	2	1	1	0	2	0	0	–	–	–	–	7/16
Jahnke et al. [18]	2	0	2	2	0	1	1	0	–	–	–	–	8/16
Weston-Simons et al. [47]	2	2	2	2	2	2	2	0	–	–	–	–	14/16
Walker et al. [44]	2	2	1	2	0	2	2	0	–	–	–	–	11/16
Walker et al. [45]	2	2	1	2	0	2	1	0	–	–	–	–	10/16
Hooper et al. [15]	2	2	2	2	0	2	1	0	–	–	–	–	11/16
Ho et al. [14]	2	0	1	2	0	2	1	0	1	2	2	2	15/24

The methodological index for non-randomized studies (MINORS) applied to all studies assessing the level physical activity before and after implantation of a unicompartmental knee arthroplasty. The items are scored 0 (not reported), 1 (reported but inadequate) or 2 (reported and adequate)