60.有關膝關節前十字韌帶(anterior cruciate ligament)之敘述,下列何者最不適當?
(A)防止脛骨前方移行(anterior tibial translation)
(B)在膝關節進行螺旋轉動復位機轉運動(screw-home mechanism)時,引導脛骨(tibia)做外旋轉 (external rotation)
(C)在膝關節伸直時(extension),後外側束(posterolateral bundle)是鬆弛的
(D)根據其脛骨的嵌入點(tibial insertion),分為前內側束(anteromedial bundle)及後外側束 (posterolateral bundle)

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統計: A(33), B(257), C(650), D(25), E(0) #3198718

詳解 (共 1 筆)

#6137693
acl_anatomy_1.jpg
ACL
  • anteromedial bundle
    • more isometric
    • tightest in flexion
    • primarily responsible for restraining anterior tibial translation (anterior drawer test)
  • posterolateral bundle 
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    • greater length changes
    • tightest in extension
    • primarily responsible for rotational stability (pivot shift test) 
      ㅤㅤ
  • femoral attachment 
      
    • lateral intercondylar ridge demarcates the anterior edge of the ACL
    • bifurcate ridge separates the anteromedial and posterolateral bundle attachment 
      ㅤㅤ
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私人筆記#6657294
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Unhappy Triad:前十字韌帶斷...
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