| 손목관절 위치 변화에 따른 정중신경의 초음파 소견 |
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| Ultrasonographic findings of median nerve according to the change
of the wrist positions |
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Eun Young Han, Sang Hee Im |
Correspondence:
Sang Hee Im,
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| Abstract |
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Objectives : To assess the changes of ultrasonographic findings of median nerve according to the change of wrist positions
in normal adults.
Methods : We studied 26 normal hands using musculoskeletal ultrasonography. A cross-sectional area, antero-posterior
diameter, transverse diameter and a flattening ratio of median nerve were measured in neutral, in 30 degree of flexion and in
30 degree of extension positions of the wrist.
Results : The cross-sectional area of median nerve was significantly increased on the wrist flexion (P<0.05), compared to that
of the neutral position. The flattening ratio of median nerve was significantly decreased in the position of wrist flexion (P<0.05),
but significantly increased in the position of wrist extension (P<0.05), compared to that of the neutral position.
Conclusion : Ultrasonography of median nerve showed structural changes according to the changes of the wrist position in
normal adults. Further large-scaled studies comparing healthy controls with the patients with carpal tunnel syndrome ranging of
age are mandatory to reveal the mechanical effects of wrist position on median nerve. |
| Key Words:
Ultrasonography, Carpal tunnel, Wrist Position |
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