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Reference values for median nerve conduction to the pronator quadratus
Brian S Foley1, Eric T Roslonski, Ralph M Buschbacher
1Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Indianapolis, IN 46202, USA. bsfoley@iupui.edu
Archives of Physical Medicine and Rehabilitation
|January 13, 2006
Summary
This study establishes normative nerve conduction values for the median nerve to the pronator quadratus in a large population. These findings provide essential reference data for clinical diagnosis and research.
Area of Science:
- Neuroscience
- Clinical Electrophysiology
Background:
- Median nerve conduction studies are crucial for diagnosing neuropathies.
- Establishing normative data is essential for accurate interpretation of electrodiagnostic findings.
Purpose of the Study:
- To derive a normative database for median nerve conduction values to the pronator quadratus.
- To utilize a large and diverse subject population for robust data.
Main Methods:
- A descriptive study design was employed.
- 207 healthy volunteers without neuropathy risk factors were recruited.
- Nerve conduction parameters including latency, duration, amplitude, and area were recorded.
Main Results:
- Latencies varied with forearm length, with longer distances showing increased latency.
- Amplitude and area showed age-related differences, decreasing in individuals over 60.
- Normative ranges for side-to-side variability in latency (0.6 ms) and amplitude decrease (37%) were determined.
Conclusions:
- This study successfully established normative values for median motor nerve conduction to the pronator quadratus.
- The derived database serves as a critical reference for clinical neurophysiology.