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Trauma & Ortho - Ulnar Nerve Diseases
Anatomy and injuries associated with the Ulnar Nerve
20
Health Care
Graduate
02/25/2011

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Cards

Term
What ligament and two bones construct Guyon's Canal?
Definition
Pisiform & Hamate
pisohamate ligament
Term
A patient with an Ulner nerve lesion/ entrapment is likely experiencing which what in which two fingers?
Definition
numbness and tingling in the ring and small finger
Term
A patient with a numb pinky after performing an activity with a tight grip, is likely experiencing...
Definition
Guyon's Canal Syndrome
Term
What are four major causes of Guyon's Canal Syndrome?
Definition
1) Cyst in canal
2) clotting of ulnar artery from repetitive trauma on lateral hand (martial arts)
3)Fracture at hook of hamate bone (golf swing & baseball batting)
4)Constant gripping (cyclists)
Term
What muscle group may atrophy if a patient has ulnar nerve entrapment?
Definition
Hypothenar Muscles
1)opponens digiti minimi
2)flexor digiti minimi brevis
3) Abductor digiti minimi
Term
What hand deformity can result from ulnar nerve damage?
Definition
Claw hand
Term
A patient with decreased function of the hypothenar muscles, interossei, and adductor pollicis; and shows signs of claw hand, likely has...
Definition
Guyon's Canal Syndrome
Term
A patient with numbness, tingling, pain in fourth and fifth digits also notices decreased sensation, yet increasing hand weakness and clumsiness has...
Definition
Guyon's Canal Syndrome
Term
What two tests are used to evaluate Guyon's canal Ulnar Nerve entrapment?
Definition
1)Tinel's sign/ pressure at pisform-hamate
2)Wartenberg's sign
Term
with Guyon's canal syndrome, the patient may be able to separate the fingers, but not...
Definition
adduct fingers
Term
Where does one palpate the pisiform-hamate structure?
Definition
Distal and Medial of the pisiform.
Term
What channel do we select points from to treat Guyon's Canal?
Definition
Small intestine
Term
In Cubital Tunnel Syndrome, Which 2 places can the ulnar nerve be entrapped?
Definition
1) Between humaral & ulnar heads of FLEXOR CARPI ULNARIS
2) Compressed in the HUMERAL GROOVE behind the medial epicondyle
Term
A patient presenting with medial forearm pain and numbness in the ring and little finger likely has...
Definition
Cubital Tunnel Syndrome
Term
A patient who gets numb fingers (pinkie and ring) when talking on the phone or flexing her elbow for long periods likely has...
Definition
Cubital Tunnel syndrome
Term
Name 6 Causes of Cubital Tunnel Syndrome
Definition
1)Direct trauma to tunnel,damaging nerve
2) Repetitive injuries
3) leaning on elbow or using elbow rest for long periods
4)Prolonged bed rest
5)shallow ulnar groove on humerus
6) Arthritis / Bonespur
Term
a patient with the following motor symptoms: weak flexor carpi ulnaris, flexor digitorum profundis muscles, and weak wrist flexion likely has...
Definition
Cubital Tunnel Syndrome
Term
In severe cases of Cubital Tunnel Syndrome, what 2 additional symptoms are possible?
Definition
1) pain at elbow
2) mild claw hand
Term
What 2 ways is Cubital Tunnel Syndrome Evaluated?
Definition
1) Flex elbow to see if symptoms are reproduced
2) Tinel's sign at elbow
Term
What channel is used to treat Cubital Tunnel Syndrome?
Definition
Small Intestine
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