Utility of supine oblique radiographs in detecting cervical spine injury

Steven R. Offerman, James F Holmes Jr, Richard W Katzberg, John R Richards

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A retrospective case-control study was performed to determine if the addition of supine oblique radiographs to the routine cervical spine series results in the detection of patients with cervical spine injuries not identified with standard views alone. The cervical spine radiographs of 82 patients with known cervical spine injuries and 180 hospitalized patients without cervical spine injuries were collected. Radiographs of the two patient groups were randomly combined to form the study sample. The radiographs were reviewed independently by a board-certified radiologist and a board-certified emergency physician. During the first phase, each reviewer was provided with standard views of the cervical spine (lateral, anterior-posterior, open-mouth odontoid, and submental views). During the second phase, each reviewer was provided with the standard views and supine obliques. The reviewers were masked to all clinical information and previous radiologic interpretations. The results showed that in the first phase (standard views only), the two physicians had a sensitivity of 81% (95% confidence interval [CI] 74-87%) and a specificity of 93% (95% CI 90-96%). In the second phase (obliques included), the two physicians had a sensitivity of 76% (95% CI 69-83) and specificity of 90% (95% CI 87-93%). In a subset analysis of patients with posterior element (lamina, facet, and pedicle) fractures, the two physicians had a sensitivity of 88% (95% CI 78-95%) with standard radiographs and 86% (95% CI 76-94%) with the addition of oblique radiographs. In conclusion the addition of supine oblique radiographs to the standard trauma cervical spine series did not increase the readers' sensitivity for detecting patients with cervical spine injuries. Routinely including oblique radiographs in patients undergoing radiographic screening of the cervical spine is not warranted.

Original languageEnglish (US)
Pages (from-to)189-195
Number of pages7
JournalJournal of Emergency Medicine
Volume30
Issue number2
DOIs
StatePublished - Feb 2006

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Spine
Wounds and Injuries
Confidence Intervals
Physicians
Mouth
Case-Control Studies
Emergencies

Keywords

  • Blunt trauma
  • Cervical spine
  • Oblique radiographs

ASJC Scopus subject areas

  • Emergency Medicine

Cite this

Utility of supine oblique radiographs in detecting cervical spine injury. / Offerman, Steven R.; Holmes Jr, James F; Katzberg, Richard W; Richards, John R.

In: Journal of Emergency Medicine, Vol. 30, No. 2, 02.2006, p. 189-195.

Research output: Contribution to journalArticle

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abstract = "A retrospective case-control study was performed to determine if the addition of supine oblique radiographs to the routine cervical spine series results in the detection of patients with cervical spine injuries not identified with standard views alone. The cervical spine radiographs of 82 patients with known cervical spine injuries and 180 hospitalized patients without cervical spine injuries were collected. Radiographs of the two patient groups were randomly combined to form the study sample. The radiographs were reviewed independently by a board-certified radiologist and a board-certified emergency physician. During the first phase, each reviewer was provided with standard views of the cervical spine (lateral, anterior-posterior, open-mouth odontoid, and submental views). During the second phase, each reviewer was provided with the standard views and supine obliques. The reviewers were masked to all clinical information and previous radiologic interpretations. The results showed that in the first phase (standard views only), the two physicians had a sensitivity of 81{\%} (95{\%} confidence interval [CI] 74-87{\%}) and a specificity of 93{\%} (95{\%} CI 90-96{\%}). In the second phase (obliques included), the two physicians had a sensitivity of 76{\%} (95{\%} CI 69-83) and specificity of 90{\%} (95{\%} CI 87-93{\%}). In a subset analysis of patients with posterior element (lamina, facet, and pedicle) fractures, the two physicians had a sensitivity of 88{\%} (95{\%} CI 78-95{\%}) with standard radiographs and 86{\%} (95{\%} CI 76-94{\%}) with the addition of oblique radiographs. In conclusion the addition of supine oblique radiographs to the standard trauma cervical spine series did not increase the readers' sensitivity for detecting patients with cervical spine injuries. Routinely including oblique radiographs in patients undergoing radiographic screening of the cervical spine is not warranted.",
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