Table 2.

Knee mobilization and clinical outcomes

Author	Knee mobilization at 4 weeks	Knee mobilization at 8 weeks	Extensor lag at last FU	Knee flexion at last FU	Failures (lag > 20%)
Boettner et al. [24]	CPM 0–90	Free ROM	0 (0–0)	117 (110–125)	0 (0%)
Burnett et al. [27]	ROM 0–45	ROM 0–90	13.9 (0–90)	98 (80–100)	0 (0%)
Wise et al. [33]	ROM 0–45	ROM 0–90	6.6 (0–55)	105 (90–120)	4 (24%)
Ares et al. [23]	No	ROM 0–45	0 (0–0)	102 (95–110)	0 (0%)
Crossett et al. [26]	ROM 0–40	ROM 0–90	3 (0–20)	107 (95–125)	1 (11%)
Lim et al. [30] (12 ATA)	Isometric exercises	ROM 0–30	14.5 (0–60)	111 (0–130)	3 (25%)
Lim et al. [30] (4 EMA)	Isometric exercises	ROM 0–30	11.2 (0–40)	112 (90–130)	1 (25%)
Burnett et al. [25]	Isometric exercises	ROM 0–30	4.3 (0–15)	104 (85–122)	0 (0%)
Emerson et al. [28]	ROM 0–60	ROM 0–90	9.4 (0–40)	106 (80–130)	3 (27%)
Leopold et al. [29]	Isometric exercises	Gradual ROM	59 (40–80)	108 (90–130)	7 (100%)
Malhotra et al. [31]	Isometric exercises	Isometric exercises	2.5 (0–10)	95 (90–100)	0 (0%)
Rajgopal et al. [32]	ROM 0–15	ROM 0–45	5 (0–15)	115 (100–130)	0 (0%)
Wood et al. [34]	Gradual ROM	Gradual ROM	26 (± 15.5)	105 (± 20)	3 (23%)

CPM: continuous passive motion; FU: follow-up; ROM: range of motion