Table 3.
Author, year | Flexion (degrees) | Extension (degrees) | Range of motion (degrees) | |||
---|---|---|---|---|---|---|
Pre-op | Post-op | Pre-op | Post-op | Pre-op | Post-op | |
Akagi, 2000 [19] | 119 | 124 | − 10.8 | − 0.3 | N/A | N/A |
Koshino, 2002 [20] | N/A | N/A | N/A | N/A | N/A | N/A |
Laskin, 2003 [21] | N/A | 117 | N/A | N/A | N/A | N/A |
Bal, 2006 [22] | 100 | 119 | − 7 | 0 | N/A | N/A |
Majima, 2008 [23] | N/A | 112 ± 17 | N/A | N/A | N/A | N/A |
Iida, 2012 [24] | 110 ± 20 | 115 ± 19 | − 8 ± 8 | − 1 ± 3 | 104 ± 23 | 114 ± 20 |
Innocenti, 2014 [25] | 92 | 118 | N/A | N/A | N/A | N/A |
Park, 2014 [26] | N/A | N/A | N/A | N/A | N/A | N/A |
Ahmed, 2015 | 116 (70–140) | 114 (70–130) | N/A | N/A | N/A | N/A |
Bergschmidt, 2015 [27] | N/A | N/A | N/A | N/A | 108.6 ± 15.4 | 111.4 ± 15.1 |
Bergschmidt, 2016 [28] | N/A | N/A | N/A | N/A | 111.3 ± 18.0 | 121.1 ± 29.6 |
Meier, 2016 [29] | N/A | N/A | N/A | N/A | N/A | N/A |
Nakamura, 2017 [30] | 110 ± 20 | 117 ± 22 | − 8 ± 8 | − 1 ± 4 | N/A | N/A |
Nakamura, 2017 [30] | 118.1 ± 19.8 | 123.7 ± 19.0 | − 10.7 ± 10.7 | − 1.6 ± 4.9 | N/A | N/A |
All data were presented as mean ± standard deviation, with range in bracket. N/A indicated the corresponding data were unavailable