accuracy of imaging modalities for suspected scaphoid fractures: meta-analysis combined with latent class analysis


Diagnostic accuracy of imaging modalities for suspected scaphoid fractures: meta-analysis combined with latent class analysis


Yin Z-G, Zhang J-B, Kan S-L, et al (Tianjin Orthopaedic Hosp, China) J Bone Joint Surg Br 94-B:1077-1085, 2012§



T. Hughes, MD



Evidence Ranking


B



Expert Rating


3



Abstract


Follow-up radiographs are usually used as the reference standard for the diagnosis of suspected scaphoid fractures. However, these are prone to errors in interpretation. We performed a meta-analysis of 30 clinical studies on the diagnosis of suspected scaphoid fractures, in which agreement data between any of follow-up radiographs, bone scintigraphy, magnetic resonance (MR) imaging, or CT could be obtained, and combined this with latent class analysis to infer the accuracy of these tests on the diagnosis of suspected scaphoid fractures in the absence of an established standard. The estimated sensitivity and specificity were respectively 91.1% and 99.8% for follow-up radiographs, 97.8% and 93.5% for bone scintigraphy, 97.7% and 99.8% for MRI, and 85.2% and 99.5% for CT. The results were generally robust in multiple sensitivity analyses. There was large between-study heterogeneity for the sensitivity of follow-up radiographs and CT, and imprecision about their sensitivity estimates.

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Apr 2, 2016 | Posted by in Hand surgery | Comments Off on accuracy of imaging modalities for suspected scaphoid fractures: meta-analysis combined with latent class analysis

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