Table 4 Radiographic outcomes CPAK type 1 and 2 subgroups
CPAK | Radiographic parameters (˚) | FA | MA | p-value | Mean diff | 95%CI |
|---|---|---|---|---|---|---|
Mean (SD) | Mean (SD) | |||||
I FA n = 13 MA n = 20 | Preoperative | |||||
HKA | 11.4 (6.0) | 13.5 (5.4) | 0.309 | − 2.1 | (− 5.11, 0.91) | |
LDFA | 89.5 (1.9) | 89.3 (2.0) | 0.687 | 0.2 | (− 0.83, 1.23) | |
MPTA | 82.4 (1.7) | 82.8 (2.0) | 0.537 | − 0.4 | (− 1.38, 0.58) | |
KJLO | 3.6 (1.5) | 3.2 (1.3) | 0.361 | 0.4 | (− 0.34, 1.14) | |
Tibial plafond inclination | 96.8 (4.1) | 98.5 (4.5) | 0.275 | − 1.7 | (− 3.97, 0.57) | |
Talar inclination | 99.3 (5.1) | 100.0 (4.0) | 0.668 | − 0.7 | (− 3.12, 1.72) | |
Tibiotalar tilt angle | 2.9 (2.6) | 2.5 (2.4) | 0.655 | 0.4 | (− 0.92, 1.72) | |
Postoperative | ||||||
HKA | 2.8 (2.7) | 2.9 (2.1) | 0.309 | − 0.1 | (− 1.38, 1.18) | |
LDFA | 89.2 (2.6) | 90.8 (2.9) | 0.122 | − 1.6 | (− 3.05, − 0.15) | |
MPTA | 88.4 (2.6) | 89.5 (1.5) | 0.196 | − 1.1 | (− 2.22, 0.02) | |
KJLO | 3.1 (2.0) | 5.1 (1.3) | 0.002 | − 2.0 | (− 2.89, − 1.11) | |
Δ KJLO | − 0.5 (1.9) | 2.0 (1.4) | < 0.001 | − 2.5 | (− 3.38, − 1.62) | |
Tibial plafond inclination | 91.0 (3.0) | 93.5 (4.5) | 0.028 | − 2.5 | (− 4.52, − 0.48) | |
Δ Tibial plafond inclination | − 5.8 (3.5) | − 5.1 (3.9) | 0.593 | − 0.7 | (− 2.66, 1.26) | |
Talar inclination | 93.9 (4.8) | 95.2 (3.1) | 0.335 | − 1.3 | (− 3.43, 0.83) | |
Δ Talar inclination | − 5.5 (5.4) | − 4.8 (3.2) | 0.659 | − 0.7 | (− 2.92, 1.52) | |
Tibiotalar tilt angle | 1.4 (1.9) | 1.9 (1.5) | 0.438 | − 0.5 | (− 1.4, 0.4) | |
Δ Tibiotalar tilt angle | − 1.5 (1.3) | − 0.6 (1.7) | 0.133 | − 0.9 | (− 1.7, − 0.1) | |
II FA n = 13 MA n = 8 | Preoperative | |||||
HKA | 6.0 (3.4) | 5.4 (3.6) | 0.694 | 0.6 | (− 1.25, 2.45) | |
LDFA | 87.2 (1.5) | 86.8 (1.5) | 0.549 | 0.4 | (− 0.39, 1.19) | |
MPTA | 86.5 (1.5) | 85.8 (0.9) | 0.242 | 0.7 | (0.05, 1.35) | |
KJLO | 3.2 (1.2) | 2.5 (1.2) | 0.199 | 0.7 | (0.07, 1.33) | |
Tibial plafond inclination | 92.9 (5.8) | 93.8 (4.0) | 0.704 | − 0.9 | (− 3.53, 1.73) | |
Talar inclination | 94.9 (5.2) | 94.6 (5.1) | 0.898 | 0.3 | (− 2.42, 3.02) | |
Tibiotalar tilt angle | 1.9 (1.6) | 1.3 (0.7) | 0.342 | 0.6 | (− 0.05, 1.25) | |
Postoperative | ||||||
HKA | 2.1 (1.4) | 1.6 (1.5) | 0.490 | 0.5 | (− 0.27, 1.27) | |
LDFA | 90.2 (3.2) | 90.1 (1.7) | 0.982 | 0.1 | (− 1.25, 1.45) | |
MPTA | 89.2 (1.8) | 90.1 (1.6) | 0.266 | − 0.9 | (− 1.8, − 0.0) | |
KJLO | 2.9 (1.6) | 3.9 (1.8) | 0.215 | − 1.0 | (− 1.9, − 0.1) | |
Δ KJLO | − 0.3 (2.3) | 1.4 (1.8) | 0.088 | − 1.7 | (− 2.79, − 0.61) | |
Tibial plafond inclination | 90.2 (3.0) | 90.8 (2.7) | 0.648 | − 0.6 | (− 2.11, 0.91) | |
Δ Tibial plafond inclination | − 2.7 (3.6) | − 3.0 (3.9) | 0.854 | 0.3 | (− 1.54, 2.14) | |
Talar inclination | 91.1 (3.0) | 89.3 (3.5) | 0.219 | 1.8 | (0.08, 3.52) | |
Δ Talar inclination | − 3.8 (3.1) | − 5.4 (5.0) | 0.391 | 1.6 | (− 0.6, 3.8) | |
Tibiotalar tilt angle | 0.9 (0.9) | 0.5 (0.8) | 0.376 | 0.4 | (− 0.05, 0.85) | |
Δ Tibiotalar tilt angle | − 1.0 (1.3) | − 0.8 (1.2) | 0.660 | − 0.2 | (− 0.86, 0.46) | |