Clinical evaluation of manual stress testing, stress ultrasound and 3D stress MRI in chronic mechanical ankle instability

Table 6 ROC-analysis of stress sonography and 3SAM

Method	Cut-off value	Sensitivity	Specificity
Stress sonography	3.6 mm	1.0	0.4
	5.2 mm	0.92	0.6
	6.6 mm	0.71	0.68
	7.2 mm	0.71	0.8
	8.3 mm	0.5	0.92
CCA_FT	26.2%	1.0	0.36
	33.0%	0.92	0.48
	43.0%	0.71	0.8
	49.2%	0.5	0.88

CCA_FT relative reduction in fibulotalar CCA in plantarflexion-supination position
Stress sonography as cumulative difference between ligament lengths of ATFL and CFL at rest vs. 150 N stress

ISSN: 1471-2474