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Double crush syndrome means that nerves being irritated up in the neck
or at some proximal location like the thoracic outlet (in the
shoulder) are causing a peripheral nerve entrapment like
carpal
tunnel or ulnar entrapment at the elbow. How is this possible? |
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The diagram above shows a nerve that's being
compressed by the green spike. Let's say this is the nerve as it gets
compressed in the thoracic outlet. Nutrients that would normally be
flowing to the more distant part of the nerves in the hand get blocked
up. Less nutrients end up flowing past the green spike (as shown by
the black arrows getting smaller as they pass this area of
compression). Now lets say that the nerve goes through a tight area in
the wrist like the carpal tunnel. While the healthy nerve had no
problem with this additional compression, the sick nerve now has less
reserve and resilience. Because of the compression farther up (in the
thoracic outlet) carpal tunnel develops. |
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Research: |
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Study 1-Nerve
Conduction Studies at the wrist...
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Study 2-Double crush and TOS...
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Study 3-Double
Crush Carpal Tunnel and Neck Pain
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Study 4-Double Crush and Surgical
Outcome
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Study 5-Double Crush and Surgical
Outcome
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Study
6-Classic Basic Science on Double Crush
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