Sports Injuries: Kin 3K03
ENTRAPMENT NEUROPATHY & TFCC
- Entrapment neuropathy is usually a compromise of blood
supply, which results in tissue death of nerve.
- We can compress the nerve several ways:
-hypertrophy of muscles
-nerves that don’t have a lot
of anatomic space to grow
(swelling will squeeze
the nerve, especially in
-area can be damaged which compresses the nerve
- Common for mountain climbers, wheelchair athletes and paddling sports (kayak, rowing), sports that involve
direct compression (cyclists that have their hands compressing handlebars for hours)
o Travels anterior to the elbow, between 2 heads of pronator teres (vulnerable anatomical spot
b/c as pronator teres hypertrophies, it will compress this nerve)
o Carpal Tunnel is the next vulnerable spot (tight space for median nerve to pass through)
o Sensory aspect: altered sensation (tingling/numbness) in lateral 3 fingers (thumb to middle
finger) on palmar side of hand.
Sensory symptoms will reflect the point at which the nerve is being choked (i.e. if nerve
is choked at elbow, then everything below will feel tingling (hand/fingers/forearm), but if
nerve is choked at carpal tunnel, only the fingers/hand will feel tingling.
o Motor aspect: weakness in thumb flexors (makes it difficult to grab things), index and middle
finger flexors: if choking of the nerve is more proximal (at the elbow), then pronation and wrist
flexion may become weak.
• ROM: pronator teres exercises will squeeze the median nerve, therefore pronator teres syndrome will
be aggravated by pronation exercises. End range wrist flexion and extension will irritate the median
nerve as these ranges of motion will decrease the space of the carpal tunnel.
o Travels along medial epicondyle of humerus through cubital tunnel
o Doesn’t pass through carpal tunnel but rather tunnel of Guyon (ulnar tunnel).
o Sensory aspect: altered sensation in ring and pinky fingers (digits 4-5 palmar side), ulnar side of
hand ulnar side of forearm. Tingling/numbness anywhere through forearm to hand to fingers 4-
If nerve is choked at cubital tunnel, then tingling/numbness in the forearm and hand will
occur, but if nerve is choked at the tunnel of guyon, altered sensation should only show
up in hand