Morphological Study of the Anterior Surface of the Distal Radius

Table 1

Measurement methods for distal radius parameters.

Regions	Abbreviation	Measurement
Anterior surface in coronal view	iL	Intermediate width/length between points i and c
	rL	Radial width/length between points r and c
	WD	Whole width/length between points i and r
	Ca	Angle between the connected line using points i and r and the central vertical line of the radius
Curvatures of the anterior surface in sagittal sectional view	iSa	Angle of curvature of the curved surface of the anterior surface as an arc on the intermediate section
	rSa	Angle of curvature of the curved surface of the anterior surface as an arc on the radial section
	iR	Radius of curvature of the curved surface of the anterior surface on the intermediate section
	rR	Radius of curvature of the curved surface of the anterior surface on the radial section
Angles of the anterior surface in sagittal sectional view	iCMSO	Angle of the line connecting points iC and M and the line connecting points S and O
	rCMSO	Angle of the line connecting points rC and M and the line connecting points S and O
	iCSSO	Angle of the line connecting points iC and S and the line connecting points S and O
	rCSSO	Angle of the line connecting points rC and S and the line connecting points S and O
	iMSSO	Angle of the line connecting points iM and S and the line connecting points S and O
	rMSSO	Angle of the line connecting points rM and S and the line connecting points S and O