Table 4.

Means and Standard Deviations for Tibiotalar and Talofibular Articular Distances Measured in Millimeters, and Mean Difference in Distances from Control to Progressive Collapsing Foot Deformity Patients with P Values and 95% Confidence Intervals for Comparisons.

		Control (mm)		PCFD (mm)		Mean difference (%)	P value	95% CI
		Mean	SD	Mean	SD
Tibiotalar distances
Anterior	Medial	2.80	0.41	3.09	0.55	10.3	0.078	− 0.61	0.03
	Middle	2.40	0.44	2.60	0.41	8.1	0.179	− 0.48	0.09
	Lateral	2.34	0.46	2.38	0.39	1.8	0.762	− 0.33	0.24
Middle	Medial	2.72	0.44	2.81	0.59	3.5	0.576	− 0.44	0.25
	Middle	2.55	0.49	2.64	0.53	3.5	0.598	− 0.43	0.25
	Lateral	2.60	0.45	2.60	0.46	0.0	0.796	− 0.31	0.31
Posterior	Medial	2.89	0.45	2.89	0.54	− 0.2	0.972	− 0.32	0.34
	Middle	2.77	0.45	2.80	0.52	1.2	0.837	− 0.36	0.29
	Lateral	3.10	0.49	3.08	0.53	− 0.9	0.873	− 0.31	0.37
Talar gutter distance
Medial	Anterior	2.47	0.32	2.52	0.39	2.3	0.635	− 0.30	0.18
	Posterior	2.62	0.44	3.01	1.12	14.9	0.337	− 0.94	0.16
Lateral	Anterior	3.31	0.70	3.42	0.76	3.3	0.493	− 0.60	0.38
	Posterior	2.82	0.51	3.29	0.68	16.8	0.021	− 0.87	− 0.08

Bolded rows denote significant changes within the region.

PCFD progressive collapsing foot deformity, MDmean difference, SD standard deviation, mm millimeter, CI confidence interval.

*Statistically significant (p < .05).