Carpal tunnel syndrome (수근괿�증후군)

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* Carpal tunnel syndrome
손목에는 아홉 개의 힘줄과 한 개의 신경이 통과하는 굴이 있는데 이곳을 손목굴이라 하고, 이곳을 지나는 신경이 눌리면 새끼손가락을 제외한 네 손가락이 아프고 저린 증상이다.
→ 수근괿�증후군 (손��굴��후군)

Symptoms
Burning, pins-and-needles sensations, numbness, and tingling in the fingers.
Often occurred during at night.
Relieved by vigorous shaking of movement of the hand.
Activities that result in persistent or repeated flexion or extension of wrist are more likely to intensify symptoms.
e.g. holding a newspaper, grasping a steering wheel,
cutting meat
* Diagnosis
Tinel’s sign
- 손바닥쪽 손목을 손가락으로 압박하면 meian nerve 분포영역에 paresthesia 발생

Phalen’s sign
- 양쪽 손등을 서로 맞대고 1분 경과후 median n. 분포영역에 pain and/or paresthesia 발생

patient’s history, clinical examination
Imaging
Electrodiagnostic studies

Diagnosis- imaging
Sonography
- swelling of the median nerve in the proximal tunnel and flattening more distally.

MRI – anatomy of the carpal tunnel, thickening of flexor tendon sheaths or presence of space-occupying lesions or aberrant muscle.