Measurement of Flexion Angle of the Finger Joint during Cylinder Gripping Using a Three-Dimensional Bone Model Built by X-Ray Computed Tomography

<div>Method for calculating the flexion angle of the PIP. Direction vectors from the center of the proximal base to the center of the distal head of the middle phalanx and proximal phalanx were calculated, and the angle created by these two direction vectors was considered to be the flexion angle of the PIP.</div>

Applied Bionics and Biomechanics

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Figure 2

Figure 2: Measurement of Flexion Angle of the Finger Joint during Cylinder Gripping Using a Three-Dimensional Bone Model Built by X-Ray Computed Tomography 

Figure 2 | Measurement of Flexion Angle of the Finger Joint during Cylinder Gripping Using a Three-Dimensional Bone Model Built by X-Ray Computed Tomography 