Compression neuropathy secondary to hematoma occurs at the cubital fossa and the inguinal region. The facia that holds the neurovascular bundle is tight and any extravasations of blood is tolerated poorly.
In the anticubital fossa the brachial artery and the median nerve pass underneath the bicepital aponeurosis. This facia is unyielding and any hematoma formation results in compression of the median nerve and brachial artery. If the faciotomy is not performed, it could eventuate into Volkmann's contracture.
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