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Use of hand diagrams in screening for ulnar neuropathy: comparison with electrodiagnostic studies
Robert A Werner1, Tony Chiodo, Teresa Spiegelberg
1Department of Physical Medicine and Rehabilitation, Veterans Administration Health System, 2215 Fuller Road (117), Ann Arbor, Michigan 48105, USA. rawerner@umich.edu
Introduction:
The objective of this study was to determine whether a hand diagram could be used to predict ulnar mononeuropathy.
Methods:
This was a prospective study of 117 consecutive patients referred for hand symptoms. Each subject filled out a hand diagram of symptoms and had median and ulnar sensory and motor nerve conduction studies, including ulnar conduction across the elbow.
Results:
The best model for predicting an ulnar mononeuropathy included hand diagram scores of definite or possible. The model had a sensitivity of 50% and specificity of 93% with an ROC area of 0.90.
Conclusions:
The ulnar hand diagram scoring system can be useful as a screening tool in the electrodiagnostic laboratory or for epidemiologic studies.
