Table 3 Reported KSS and OKS based on different FCCA values
Author (year) | Measured angle | Groups | Number of knees | KSS knee scorea, mean ± SD | KSS function scorea, mean ± SD | OKSa, mean ± SD |
|---|---|---|---|---|---|---|
Gill (2021) [6] | FCCAb | < -7.5° | 4 (1.8%) | 99.0 ± 4.7 | 96.3 ± 5.4 | |
-7.5° to -5° | 8 (3.6%) | 94.0 ± 5.2 | 96.6 ± 6.6 | |||
-5° to -2.5° | 28 (12.6%) | 94.2 ± 9.0 | 95.4 ± 7.5 | |||
-2.5° to 0° | 63 (28.3%) | 94.2 ± 9.2 | 96.2 ± 6.9 | |||
0° to 2.5° | 69 (30.9%) | 95.6 ± 6.9 | 95.7 ± 8.9 | |||
2.5° to 5° | 37 (16.6%) | 96.8 ± 4.5 | 97.4 ± 3.5 | |||
5° to 7.5° | 10 (4.5%) | 94.2 ± 7.8 | 90.7 ± 12.6 | |||
> 7.5° | 4 (1.8%) | 97.5 ± 3.7 | 94.5 ± 2.9 | |||
Gulati (2009) [7] | FCCAb | -10° to -7.5° | 3 (1.4%) | 37.3 ± 15.1 | ||
-7.5° to -5° | 8 (3.8%) | 38.6 ± 9.4 | ||||
-5° to -2.5° | 25 (11.8%) | 42.4 ± 6.3 | ||||
-2.5° to 0° | 38 (18.0%) | 39.9 ± 7.5 | ||||
0° to 2.5° | 65 (30.8%) | 40.2 ± 8.2 | ||||
2.5° to 5° | 31 (14.7%) | 40.6 ± 8.8 | ||||
5° to 7.5° | 27 (12.8%) | 38.5 ± 9.6 | ||||
7.5° to 10° | 11 (5.2%) | 43.7 ± 3.6 | ||||
10° to 12.5 | 3 (1.4%) | 38.3 ± 16.7 | ||||
Khow (2020) [23] | FCCAb | ≤ 3° (mean 1.6°) | 106 (40.2%) | 85.4 ± 12.6 | 75.0 ± 18.8 | 17.8 ± 3.4c |
> 3° (mean 6.6°) | 158 (59.8%) | 82.4 ± 18.9 | 74.2 ± 18.8 | 19.6 ± 7.8c* |