J Korean Neurosurg Soc.  1996 Jul;25(7):1364-1370.

Differentiation Between Acute and Old Fractures in The Thoracic and Lumbar Spine: Observer Agreement

• Lee KS
• Bae WK
• Jho WS
• Bae HG
• Doh JW
• Yun IG

Abstract

Differentiation between acute and old fractures in the thoracic and lumbar spine is often difficult. We have evaluated the intraobserver agreement and interobserver variability of interpretations. We have prepared 50 cases from 40 patients with thoracic or lumbar spine fracture for evaluation. At first, two radiologist interpreted each of the 50 cases, Only by using plain roentgenograms. Then, they interpreted the cases again using also spine CT, MRI, bone scintigrams and follow-up roentgenograms. Intraobserver agreement was found to be 78% in Doctor A, and 76% in Doctor B. Interobserver agreement was only 62% at first. It was 88%, when they used CT, MRI, bone scintigrams and follow-up roentgenograms. It was not easy to differentiate the old fractures from acute one only by plain roentgenograms. Differentiation was more difficult, when the patient was female or over 55 years old. Plain roentgenography in hyperextension posture seems to be a simple but useful method for the diagnosis of the acute fracture. MRI was more valuable than CT or bone scintigraphy to differentiate the old fractures from the acute ones.

Keyword

Differential diagnosis; Observer agreement; Acute fracture; Old fracture; Thoracic and lumbar spine; Compression fracture

MeSH Terms

Diagnosis
Diagnosis, Differential
Female
Follow-Up Studies
Fractures, Compression
Humans
Magnetic Resonance Imaging
Middle Aged
Observer Variation
Posture
Radiography
Radionuclide Imaging
Spine*