AVULSION
The nerve is
completely torn
away from the
spine.
RUPTURE
The nerve is
completely torn,
but not where
it attaches
to the spine.
This causes
a neuroma.
NEUROMA
Scar tissue
developes around
the nerve as
it heals. The
nerve cannot
conduct signals
from the spine
to the arm/hand,
because of the
pressure put
on the nerve
by the scar.
PRAXIS
/ STRETCH
The nerve is
injured/damaged,
but is not torn.
This type of
injury may heal
on its own or
form a neuroma
as well.