Table 8 Clinical outcomes of FA-TKA and MA-TKA within CPAK phenotype
Clinical outcomes | CPAK I | CPAK II | p-value | Mean Diff | 95%CI | |||
|---|---|---|---|---|---|---|---|---|
n | Mean (SD) | n | Mean (SD) | |||||
FA-TKA | VAS pain score (first 3 days) | 13 | 4.15 (1.7) | 13 | 3.77 (2.0) | 0.605 | 0.38 | − 1.1,1.8 |
Flexion range | ||||||||
Preoperative | 13 | 120.2 (9.7) | 13 | 122.6 (10.5) | 0.572 | − 2.3 | − 10.6,5.9 | |
Day 3 | 13 | 89.0 (8.2) | 13 | 92.0 (10.8) | 0.348 | − 3.6 | − 11.4,4.1 | |
1 month | 13 | 105.9(11.0) | 13 | 113.1(6.3) | 0.052 | − 7.2 | − 14.5,0.07 | |
3 months | 12 | 117.0(8.2) | 13 | 120.77(5.8) | 0.219 | − 3.6 | − 9.4,2.2 | |
6 months | 12 | 125.0 (5.6) | 12 | 127.5 (5.6) | 0.306 | − 2.4 | − 7.1,2.3 | |
KOOS | ||||||||
Preoperative | 13 | 33.8 (11.5) | 13 | 39.2 (12.8) | 0.265 | 4.7 | − 15.3,4.4 | |
1 month | 13 | 66.0 (11.2) | 13 | 62.0 (12.1) | 0.396 | 4.5 | − 5.5,13.4 | |
3 months | 13 | 70.0 (5.9) | 13 | 68.9 (7.8) | 0.723 | 2.7 | − 4.6,6.6 | |
6 months | 11 | 73.6 (6.8) | 12 | 70.0 (6.5) | 0.216 | 2.8 | − 2.2,9.4 | |
FJS | ||||||||
Preoperative | 13 | 25.3 (17.8) | 13 | 30.2 (15.8) | 0.460 | 6.6 | − 18.6,8.6 | |
1 month | 13 | 38.0 (9.3) | 13 | 32.8 (8.3) | 0.152 | 3.4 | − 2.0,12.2 | |
3 months | 13 | 56.9 (8.9) | 13 | 49.1 (9.7) | 0.047 | 3.6 | 0.10,15.2 | |
6 months | 12 | 72.9 (7.2) | 12 | 61.2 (8.4) | 0.002 | 3.2 | 4.9,18.3 | |
Patient satisfaction score | 13 | 85.8 (6.0) | 13 | 82.3 (6.6) | 0.178 | 3.4 | − 1.6,8.6 | |
MA-TKA | VAS pain score (first 3 days) | 20 | 3.8(2.1) | 8 | 5.5(0.75) | 0.042 | − 1.6 | − 3.2,1.5 |
Flexion range | ||||||||
Preoperative | 20 | 120.5(7.4) | 8 | 126.3 (5.8) | 0.065 | − 5.7 | − 11.7,0.3 | |
Day 3 | 20 | 86.9(11.5) | 8 | 93.0 (4.6) | 0.166 | − 6.0 | − 14.7,2.6 | |
1 month | 20 | 102.7(12.0) | 8 | 109.3 (8.7) | 0.178 | − 6.5 | − 16.1,3.1 | |
3 months | 19 | 16.1(9.6) | 8 | 122.4 (5.3) | 0.100 | − 6.2 | − 13.7,1.2 | |
6 months | 18 | 124.1(6.3) | 8 | 129.0 (4.8) | 0.063 | − 4.8 | − 10.0,0.2 | |
KOOS | ||||||||
Preoperative | 20 | 35.5(16.4) | 8 | 34.1 (13.3) | 0.827 | 1.4 | − 12.0,14.9 | |
1 month | 20 | 59.0(13.0) | 8 | 58.5 (12.4) | 0.921 | 0.5 | − 10.5,11.6 | |
3 months | 20 | 68.4(7.8) | 8 | 67.8 (9.0) | 0.839 | 0.7 | − 6.3,7.6 | |
6 months | 17 | 70.0 (6.0) | 8 | 71.2 (4.0) | 0.738 | − 0.8 | − 5.6,4.0 | |
FJS | ||||||||
Preoperative | 20 | 24.7(16.2) | 8 | 27.1 (14.6) | 0.733 | − 2.2 | − 15.9,11.3 | |
1 month | 20 | 31.0(8.9) | 8 | 32.6 (9.4) | 0.693 | − 1.5 | − 9.2,6.2 | |
3 months | 20 | 45.0(10.8) | 8 | 48.2 (12.0) | 0.501 | − 3.1 | − 12.7,6.3 | |
6 months | 18 | 57.2(8.9) | 8 | 58.9 (11.1) | 0.705 | − 1.5 | − 9.9,6.8 | |
Patient satisfaction score | 20 | 78.5(4.3) | 8 | 80.6 (5.6) | 0.291 | − 2.1 | − 6.1,1.9 | |