图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
器官移植长期效应期刊
SJR: 0.133 SNIP: 0.491 CiteScore™: 0.89

ISSN 打印: 1050-6934
ISSN 在线: 1940-4379

器官移植长期效应期刊

DOI: 10.1615/JLongTermEffMedImplants.v16.i5.100
pages 401-405

Median and Ulnar 14-cm Antidromic Sensory Studies to the Third and Fifth Digits−A Comparison of Amplitude

Ralph M. Buschbacher
Clinical Associate Professor & Interim Chair. Department of Physical Medicine&Rehabilitation, Indiana University School of Medicine,CL 368,541 North Clinical Drive, Indianapolis IN 46202, USA
Andrew Berkson
Department of Physical Medicine and Rehabilitation, Indiana University, Indianapolis, IN 46202
Douglas Mottley
Indiana University Department of Physical Medicine and Rehabilitation, Indianapolis, IN, USA
Zaliha Omar
Associate Professor, Department of Allied Health Sciences, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia

ABSTRACT

There are multiple reports of peripheral nerve injury following the implantation or removal of surgical hardware. Electrodiagnostic testing can be useful in assessing the chronicity, severity, and recovery of such a nerve injury. The purpose of this study is to establish a normative data set to allow for comparison of median and ulnar antidromic sensory peak-to-peak amplitude values. Median and ulnar antidromic sensory studies to digits 3 and 5 are commonly performed in electrodiagnosis to aid in the diagnosis of a variety of clinical conditions. Numerous studies have examined normal latency and amplitude values for these studies. To our knowledge there has been one other study that compared the relationship between median and ulnar sensory amplitude results taken from the same limb. That study had limited generalizability to the population at large.
One hundred-nineteen volunteers were tested with antidromic sensory technique to digits 3 and 5 at 14-cm stimulation distance. Peak latency and peak-to-peak amplitude were recorded. Possible relationships between age, gender, height, weight, BMI, and median and ulnar amplitude were examined through simple linear regressions. Age, weight, height, and BMI were all found to negatively correlate with both median and ulnar amplitude. Female subjects were found to have statistically greater median and ulnar amplitudes than male subjects. Factors were said to be statistically significant at the P ≤ 0.05 level. The mean median peak latency was 3.2 ± 0.3 ms. The mean ulnar peak latency was 3.2 ± 0.4 ms. The mean median peak-to-peak amplitude was 87 ± 36 μV. The mean ulnar peak-to-peak amplitude was 72 ± 34 μV. The upper limit of normal difference (2.5th percentile) in median-versus-ulnar amplitude was a 56% drop from median-to-ulnar amplitude, or a 59% drop from ulnar-to-median amplitude. This allows for amplitude comparisons to be made between these two nerves.


Articles with similar content:

Acceptable Differences in Sensory and Motor Latencies Between the Median and Ulnar Nerves
Journal of Long-Term Effects of Medical Implants, Vol.16, 2006, issue 5
Ralph M. Buschbacher, Elizabeth A. Grossart, Nathan D. Prahlow
Comparison of Median and Radial Sensory Studies to the Thumb
Journal of Long-Term Effects of Medical Implants, Vol.16, 2006, issue 5
Ralph M. Buschbacher, Andrew Berkson, James Lohman
Median and Ulnar Antidromic Sensory Studies to the Fourth Digit
Journal of Long-Term Effects of Medical Implants, Vol.16, 2006, issue 5
Ralph M. Buschbacher, Andrew Berkson, James Lohman
Radial Versus Dorsal Ulnar Cutaneous Sensory Studies
Journal of Long-Term Effects of Medical Implants, Vol.16, 2006, issue 5
Ralph M. Buschbacher, Van Evanoff, Jr.
An Antidromic Study of the Medial Antebrachial Cutaneous Nerve, with a Comparison of the Differences Between Medial and Lateral Antebrachial Cutaneous Nerve Latencies
Journal of Long-Term Effects of Medical Implants, Vol.16, 2006, issue 5
Ralph M. Buschbacher, Nathan D. Prahlow