Anterior Spinal A.

Thrax_usmle · Jul 23, 2013

FA says Ant. Spinal A. decreases contralateral proprioception too (dorsal column) along with other things (contralteral hemiparesis)
BUT uworld mentions anterior spinal artery runs along anterior side of spinal cord and it affects everything else EXCEPT dorsal column, so it causes loss strength below the level of injury with loss of pain and temperature sensation BUT spares proprioception and vibratory senses.

http://www.usmlesteponewiki.com/index.php?title=Anterior_Spinal_Artery

Which one is correct, what should i do if this is asked on step 1.

Thrax_usmle · Jul 23, 2013

Just noticed that whats given in FA, its ant spinal A. in relation to Medial Medullary Syndrome and then i think it kinda does make sense, medial medulla lesion will have those lesions.
And what was in uworld , that was Anterior Spinal A. Syndrome alone.

Could that be the difference ?? Idk ..

excellence · Sep 11, 2014

ASA lesion will depend on the occlusion site:
If the occlusion at the level of spinal cord-> all tracts will be affected EXCEPT dorsal column.
If the occlusion is at higher level in brain stem-> will give u medial medullary syndrome which is [ contral hemiparesis, contral decr proprioception, & ipsilateral hypoglossal dysfunction]

Anterior Spinal A.

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