Table 3.

The correlation between total score of the JOA score at the final follow-up and the results of the 3 evaluation methods: flexion–extension radiographs, flexion CT and extension CT

	Fusion	Pseudoarthrodesis	P
Flexion–extension radiographs	25.45 ± 3.12	24.64 ± 3.56	0.43
Flexion CT	25.51 ± 3.14	24.57 ± 3.35	0.32
Extension CT	25.44 ± 3.19	25.05 ± 3.19	0.64