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. 2023 Apr 25;40:57–64. doi: 10.1016/j.jor.2023.04.014

Table 3.

Measurement reliability.

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.