Analysis of Proximal Femoral Parameters in Adolescent Idiopathic Scoliosis

Table 2

Results of the intra- and interobserver reliability study, assessing reliability of EOS reconstructions. Evaluation is as per Winer’s criteria.

Parameter	Intraobserver				Interobserver
	ICC (obs 1)	ICC (obs 2)	ICC (obs 3)	Evaluation	ICC (interobs)	Evaluation
Femoral head diameter	0.95	0.93	0.97	Excellent	0.92	Excellent
Femur neck length	0.93	0.91	0.95	Excellent	0.91	Excellent
Neck shaft angle	0.96	0.96	0.95	Excellent	0.93	Excellent
Femoral offset	0.92	0.94	0.93	Excellent	0.92	Excellent
Femur mechanical axis-shaft angle	0.97	0.94	0.98	Excellent	0.94	Excellent
Femoral torsion	0.90	0.90	0.93	Excellent	0.91	Excellent
SterEOS Cobb angle	0.91	0.91	0.94	Excellent	0.90	Excellent

ICC: intraclass coefficient, obs: observer.