Article

This study describes the extra- and intramuscular nerve branching of
muscles of the ventral compartment of forearm, thereby providing critical
information on determining the points for botulinum toxin injections that would
be effective at reducing muscular spasticity. DESIGN: Twenty-three Korean and
French cadavers were dissected and subjected to Modified Sihler's staining to
investigate nerve entry points and intramuscular nerve arborization patterns.
Nerve entry point and abundant arborizing area of each muscle were analyzed on 20
segments with reference to transverse lines obtained by dividing the forearm into
ten equal divisions and a vertical line bisecting the medial and lateral halves
of the forearm. RESULTS: The nerve entry points of the first and second layers of
forearm muscles were located at medial levels 3 and 2, respectively. The entry
points of the median and ulnar nerves innervating the flexor digitorum profundus
(third layer) were located at medial levels 4 and 3, respectively. The
intramuscular regions of abundant arborization in each muscle were located one
level distal to the nerve entry point. CONCLUSIONS: This study has yielded a map
of nerve entry and abundant arborization of motor nerves innervating each muscle
of the ventral compartment of the forearm.

Langue : ANGLAIS