Related Experiment Videos
Sensory conduction in the musculocutaneous nerve
Archives of Physical Medicine and Rehabilitation
|January 1, 1978
Summary
This study presents a new antidromic technique for assessing sensory nerve conduction in the lateral cutaneous nerve of the forearm. It establishes normal conduction velocity and action potential amplitude values for this nerve.
Area of Science:
- Neuroscience
- Clinical Electrophysiology
Background:
- The lateral cutaneous nerve of the forearm, a sensory branch of the musculocutaneous nerve, plays a crucial role in forearm sensation.
- Accurate assessment of its conduction properties is essential for diagnosing neuropathies.
Purpose of the Study:
- To describe and validate an antidromic technique for evaluating sensory conduction in the lateral cutaneous nerve of the forearm.
- To establish normative data for nerve conduction studies of this nerve.
Main Methods:
- An antidromic technique was employed, involving surface stimulation at the elbow and surface recordings 12 cm distally.
- Sixty nerves in 30 healthy individuals were examined using this method.
Main Results:
- The mean latency to action potential onset was 1.8 ± 0.1 msec.
- The mean sensory conduction velocity was 65 ± 3.6 meters/sec.
- The mean action potential amplitude was 24 ± 7.2 μV.
Conclusions:
- The described antidromic technique is effective for studying sensory conduction in the lateral cutaneous nerve of the forearm.
- The established normative values provide a benchmark for clinical electrodiagnostic assessments.