Table 3.
Intraobserver ICCs | Interobserver ICCs | |
---|---|---|
Single-leg standing radiograph | ||
JLOAF | 0.96–0.99 (excellent) | 0.93–0.98 (excellent) |
JLOAM | 0.96–0.99 (excellent) | 0.93–0.99 (excellent) |
JLOAT | 0.97–0.99 (excellent) | 0.91–0.98 (excellent) |
MJLA | 0.94–0.98 (excellent) | 0.92–0.98 (excellent) |
MPTA | 0.96–0.99 (excellent) | 0.95–0.99 (excellent) |
JLCA | 0.92–0.98 (excellent) | 0.85–0.96 (good-to-excellent) |
KAJA | 0.85–0.96 (good to excellent) | 0.84–0.95 (good-to-excellent) |
HKA | 0.99–1 (excellent) | 0.95–0.99 (excellent) |
Double-leg standing radiograph | ||
JLOAF | 0.95–0.99 (excellent) | 0.91–0.97 (excellent) |
JLOAM | 0.94–0.98 (excellent) | 0.89–0.97 (good-to-excellent) |
JLOAT | 0.95–0.99 (excellent) | 0.93–0.98 (excellent) |
MJLA | 0.93–0.98 (excellent) | 0.88–0.97 (good-to-excellent) |
MPTA | 0.96–0.99 (excellent) | 0.95–0.99 (excellent) |
JLCA | 0.92–0.98 (excellent) | 0.85–0.95 (good-to-excellent) |
KAJA | 0.90–0.98 (good to excellent) | 0.85–0.95 (good-to-excellent) |
HKA | 0.94–0.98 (excellent) | 0.96–0.99 (excellent) |
ITD | 1 (excellent) | 0.99–1 (excellent) |
Abbreviations: ICCs, intraclass correlation coefficients; JLOAF, joint line orientation angle by femoral condyles; JLOAM, joint line orientation angle by middle knee joint space; JLOAT, joint line orientation angle by tibial plateau; MJLA, Mikulicz joint line angle; MPTA, medial proximal tibial angle; JLCA, joint line convergence angle; KAJA, knee ankle joint angle; HKA, hip-knee-ankle angle; ITD, intertalar distance.
Note: The ICCs are graded on 95% confidence interval. ICCs <0.50, 0.50–0.75, 0.75–0.90, and >0.90 indicated poor, moderate, good, and excellent reliability, respectively.23.