The sensitivity and specificity of the digital rectal examination for detecting spinal cord injury in adult patients with blunt trauma - 18/08/11
, Alyssa B. Brzenski, BA b Abstract |
Study Objectives |
The digital rectal examination (DRE) may assist physicians in detecting spinal cord injury in patients with blunt trauma. However, the test characteristics of the DRE for detecting spinal cord injury are unknown.
Methods |
We conducted a retrospective review of consecutive adult patients with blunt trauma over a 2-year period. The DRE result was compared with the presence or absence of spinal cord injury at discharge.
Results |
A total of 1032 adult patients with blunt trauma had a DRE. Of these, 54 (5.2%) had diagnoses consistent with spinal cord injury. Ninety-nine patients had decreased rectal tone, 27 of whom also had spinal cord injuries. The sensitivity, specificity, positive predictive value, and negative predictive values were 50%, 93%, 27%, and 97%, respectively.
Conclusion |
The DRE is insensitive to spinal cord injury and has a poor positive predictive value. The high specificity must be balanced against the large number of false-positive results.
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| ☆ | Sources of support: Alyssa Sprenger was provided an internal LLU medical school research grant for this project. There was no other support provided. |
Vol 24 - N° 1
P. 113-117 - janvier 2006 Retour au numéro
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