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Old 11-11-2012
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Anatomy Decreased Toes Sensation

A bicyclist went for a race. During the race he accidentally fell down. You examine and observe palpable crepitus at proximal tibia. X ray is done and fracture tibia is confirmed. Patient is placed on plaster of paris cast. Follow up 1 week later he has no complaints but you observe decreased sensation at 3rd to 5th toes. Your immediate concern is regarding pathology in which of the following nerves?

a) sural nerve
b) common peroneal nerve
c) deep peroneal nerve
d) tibial nerve
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Old 11-11-2012
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b.Common peroneal nerve
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Old 11-12-2012
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Quote:
Originally Posted by rupesh View Post
A bicyclist went for a race. During the race he accidentally fell down. You examine and observe palpable crepitus at proximal tibia. X ray is done and fracture tibia is confirmed. Patient is placed on plaster of paris cast. Follow up 1 week later he has no complaints but you observe decreased sensation at 3rd to 5th toes. Your immediate concern is regarding pathology in which of the following nerves?

a) sural nerve
b) common peroneal nerve
c) deep peroneal nerve
d) tibial nerve
B)COMMON PERONEAL NERVE:cutaneous branches of cpn supply dorsum of foot sensations ,first ewebspace is innervated by deep peroneal nerv
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Old 11-12-2012
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can any one clarify why common peroneal nerve is specific for 3rd and 5th toe sensations?
i didnt know that
so asking
some one please elaborate that
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Old 11-13-2012
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Correct Answer b

the common peroneal nerve supplies 3rd to 5th toes..
besides after applying POP cast we do make these toes open to look and feel the sensation to assess for common and deep peroneal nerve...
if there is decresed sensation from 3rd to 5th toes we might have to remove the cast for possible compartment syndrome...
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