babydoc4usmle wrote:
you make Pt stand on TESTED side
you test left sup glutela n - raise right leg
you test right sup gluteal nerve - raise left leg
Excellent!!
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| dr_arc
Forum Senior
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Posts: 156
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thanks guys. but what i am really trying to figure out is "WHY" rather than how. i mean the other ones are simple, you lose ur glut max u have difficulty getting up from a sitting position .you lose your sup peronneal -you can't evert. you lose ur deep peroneal- your foot drops. you lose ur median your thenar is flat .you lose axillary you can't use deltoid to abduct arm to 90 etc etc..these nerves supply a muscle ,the muscle is attached to two places so it moves and therefore it has an obvious action ,u lose the nerve , you lose that action . so how exactly is it that the glut med and min hold the opp unsupported hip up when the leg is raised .what is the mechanism that makes it work to hold the opp side up. i hope i am phrasing the question correctly? any answers guys?
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| babydoc4usmle
Forum Guru
Topics: 18
Posts: 631
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that's the whole point - function of the muscle
for the one in question is to PULL opposit side to keep balance while another side is unable to do so (when you raise your leg you "loose" that side)
imagine a table and you have to hold it with another guy from two ends
from the side it looks like you both holding it equally, but you say that you do all the work while other guy just pretends and does nothing. to verify that you say to him "step aside" and you keep holding that table all by yourself PULLING opposite side. and if you stepped aside that table would dropped because that other guy really does nothing
hope it helps
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| dr_arc
Forum Senior
Topics: 5
Posts: 156
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thankyou babydoc4usmle
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| dr_arc
Forum Senior
Topics: 5
Posts: 156
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brilliant explanation . really nice . thanks a ton
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