| Measurement of occipitocervical angle. | |
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MedLine Citation:
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PMID: 15131455 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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STUDY DESIGN: This study compared the reliability of 3 techniques used to measure alignment between the occiput and cervical spine. OBJECTIVES: Intraobserver and interobserver intraclass correlation coefficient were computed to determine the most reliable method to measure occipitocervical angle. SUMMARY OF BACKGROUND DATA: No studies have been performed comparing occipitocervical angle measurement techniques. METHODS: The angles between the inferior endplate of second cervical vertebrae and the occiput line using the Chamberlain line, McRae line, and McGregor line were measured from lateral cervical radiographs of 30 healthy volunteers. Five spine surgeons made measurements. RESULTS: Mean intraobserver variances of the angles using Chamberlain line, McRae line, and McGregor line were 2.0 degrees (ranging from 0 degrees-15 degrees), 4.7 degrees (from 0 degrees-28 degrees), and 1.5 degrees (from 0 degrees-9 degrees), respectively; intraobserver intraclass correlation coefficients of the angles were 0.956, 0.835, and 0.975. Mean interobserver variances of the angles using Chamberlain line, McRae line, and McGregor line were 2.3 degrees (from 0.4 degrees-6.4 degrees), 5.0 degrees (from 1.8 degrees-11.9 degrees), and 1.4 degrees (from 0 degrees-4.5 degrees), respectively; interobserver intraclass correlation coefficients were 0.939, 0.802, and 0.972. The highest reliability indexes were obtained for McGregor line. CONCLUSIONS: The McGregor line is the most reproducible and reliable method for measurement of the occipitocervical angle. |
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Authors:
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Naoki Shoda; Katsushi Takeshita; Atsushi Seichi; Toru Akune; Susumu Nakajima; Yorito Anamizu; Mitsunori Miyashita; Kozo Nakamura |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article |
Journal Detail:
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Title: Spine Volume: 29 ISSN: 1528-1159 ISO Abbreviation: Spine Publication Date: 2004 May |
Date Detail:
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Created Date: 2004-05-07 Completed Date: 2004-08-12 Revised Date: 2009-07-09 |
Medline Journal Info:
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Nlm Unique ID: 7610646 Medline TA: Spine (Phila Pa 1976) Country: United States |
Other Details:
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Languages: eng Pagination: E204-8 Citation Subset: IM |
Affiliation:
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Departments of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan. tkyort-office@umin.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anthropometry
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methods* Axis / anatomy & histology*, radiography Cephalometry / methods* Humans Neck / anatomy & histology*, radiography Observer Variation Occipital Bone / anatomy & histology*, radiography Palate, Hard / anatomy & histology, radiography Reference Values Reproducibility of Results |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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