Electromyography in craniomaxillofacial trauma.

Area of Science:

• Neurology
• Trauma Surgery
• Diagnostic Imaging

Background:

• Craniofacial injuries require accurate diagnosis and prognosis.
• Electromyography (EMG) is a key diagnostic tool.
• Understanding neural pathophysiology is crucial for electrodiagnostic testing.

Purpose of the Study:

• To review neural pathophysiology following trauma.
• To explain basic principles of electrodiagnostic testing.
• To determine indications for electrodiagnostic testing in craniofacial trauma.

Main Methods:

• Review of electrodiagnostic techniques for nerve injury assessment.
• Classification of nerve injuries into neurapraxia, axonotmesis, and neurotmesis.
• Analysis of electrodiagnostic findings in relation to injury severity and time post-trauma.

Main Results:

• Electrodiagnostic techniques can differentiate injury degrees.
• Neurapraxic injuries show persistent response to distal stimulation.
• Axonal degeneration occurs within 3-5 days in severe injuries.

Conclusions:

• Electromyography is a valuable adjunct for diagnosing and prognosing craniofacial injuries.
• Reported accuracy of electrodiagnostic data varies (50-90%).
• Further research with larger patient cohorts and longer follow-up is needed.