Table III.
Distribution and mean knee alignment angles of 214 healthy knees in the modified coronal plane alignment of the knee classification.
| CPAK | n, (%) | Mean mHKA, ° (SD) | Mean LDFA, ° (SD) | Mean MPTA, ° (SD) | Mean MA-AA, ° (SD) | Mean aHKA, ° (SD) | Mean JLO, ° (SD) | Mean aJLO, ° (SD) |
|---|---|---|---|---|---|---|---|---|
| I | 46 (21.5) | -4.1 (2.0) | 87.8 (1.8) | 83.3 (1.5) | 5.2 (1.4) | -4.5 (2.2) | 170.3 (2.2) | 4.5 (1.2) |
| II | 70 (32.7) | 0.0 (1.6) | 85.6 (1.7) | 85.3 (1.3) | 4.2 (1.2) | -0.3 (1.7) | 170.7 (2.2) | 4.6 (1.2) |
| III | 9 (4.2) | 4.0 (1.0) | 83.6 (1.4) | 87.6 (1.2) | 3.4 (1.7) | 3.9 (1.0) | 172.9 (2.2) | 4.4 (1.9) |
| IV | 26 (12.1) | -4.5 (2.4) | 90.7 (1.6) | 85.5 (1.1) | 6.2 (2.2) | -5.2 (2.1) | 176.2 (1.8) | 1.9 (0.9) |
| V | 55 (25.7) | -0.3 (1.7) | 88.3 (1.1) | 87.8 (1.1) | 4.4 (1.1) | -0.5 (1.5) | 176.0 (1.6) | 2.0 (0.8) |
| VI | 8 (3.7) | 4.6 (1.0) | 85.5 (0.7) | 90.4 (1.3) | 4.6 (1.3) | 4.9 (1.3) | 175.9 (1.6) | 2.0 (0.8) |
aHKA, arithmetic hip-knee-ankle angle; aJLO, actual joint line obliquity; CPAK, Coronal Plane Alignment of the Knee; JLO, joint line obliquity; LDFA, lateral distal femoral angle; MA-AA, angle between femoral anatomical axis and mechanical axis; mHKA, mechanical hip-knee-ankle angle; MPTA, medial proximal tibial angle; SD, standard deviation.