Proper functioning of the hand is
centered on the use of the thumb, which is the only
opposable finger among the five. Assessment of the
thenar muscles that is essential for thumb movement
is important in not only medical field as to look
for any pathology, but also crucial in the engineering
field. Assessment of these muscles can be applied
to develop a prostatic thumb which can mimics
the real actions of a real thumb as closely possible.
Muscle length is one of the parameters needed to
develop a prostatic thumb. Therefore, in this study,
we utilized ultrasound technique to measure thenar
muscles length and the precision of this technique
is compared with the MRI examination as gold standard
