Electrodiagnostic techniques in the evaluation of nerve compressions and injuries in the upper limb.Hand Clin. 1986 Nov; 2(4):677-87.HC
Nerve conduction studies and the needle examination of muscles (EMG) are valuable aids in the evaluation of acute and chronic focal neuropathies. A careful clinical examination, however, remains the best way to assess patients with these disorders. In an acute and apparently complete nerve lesion, the main drawbacks of electrophysiologic testing are that a full evaluation cannot usually be done before 10 days after the injury, and the differentiation between axonotmesis and neurotmesis cannot be made.