| Three-dimensional volume-rendering computed tomography for measuring humeral version. | |
| | |
MedLine Citation:
|
PMID: 20381384 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
HYPOTHESIS: Humeral version is highly variable in human beings. Accurate assessment of humeral version may allow for more anatomic reconstruction at shoulder arthroplasty. Two-dimensional (2D) computed tomography (CT) has been used to measure humeral version but has limitations of poor interobserver reproducibility and strict dependence on arm positioning during image acquisition. This study evaluated a new technique, 3-dimensional (3D) volume rendering, for measuring humeral version. MATERIALS AND METHODS: Eight dried human humerus specimens were included in the study. Gold standard measurements of humeral version were obtained by use of metallic beads and fluoroscopy. The specimens were then scanned at CT in 2 different positions, 1 neutral to the table and 1 angled at 20 degrees . The image data sets were used to measure humeral version in each bone with both the standard 2D technique and the new 3D technique. Measurements were performed by 3 readers at 2 different time points. Readers were blinded to the gold standard results and each others' measurements. RESULTS: For all readers, 3D measurements averaged within 4.3 degrees of the gold standard. For 2 of the 3 readers, 3D measurements were more accurate than 2D measurements. For all 3 readers, intraobserver variability was better with the 3D technique. For all reader pairs, interobserver variability was better with the 3D technique. CONCLUSIONS: This study shows a 3D volume-rendering CT technique to measure humeral version accurately and consistently that is independent of patient positioning. |
| | |
Authors:
|
Joshua M Polster; Naveen Subhas; Jason J Scalise; Jason A Bryan; Michael L Lieber; Mark S Schickendantz |
Related Documents
:
|
17243334 - Three-dimensional display with quantitative analysis in alveolar bone resorption using ... 8586334 - Superimposition and reconstruction in forensic facial identification: a survey. 11641734 - Evaluation of an ossifying fibroma using three-dimensional computed tomography. 17619924 - Virtual hysteroscopy by multidetector computed tomography. 3823954 - Computed tomography diagnosis of distal radioulnar subluxation. 10627784 - Peduncular hallucinosis: an unusual sequel to surgical intervention in the suprasellar ... |
Publication Detail:
|
Type: Comparative Study; Journal Article Date: 2010-04-08 |
Journal Detail:
|
Title: Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.] Volume: 19 ISSN: 1532-6500 ISO Abbreviation: J Shoulder Elbow Surg Publication Date: 2010 Sep |
Date Detail:
|
Created Date: 2010-08-17 Completed Date: 2011-01-04 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9206499 Medline TA: J Shoulder Elbow Surg Country: United States |
Other Details:
|
Languages: eng Pagination: 899-907 Citation Subset: IM |
Copyright Information:
|
(c) 2010 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved. |
Affiliation:
|
Imaging Institute, Cleveland Clinic, Cleveland, OH 44195, USA. polstej@ccf.org |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Arthroplasty, Replacement Cadaver Humans Humerus / radiography* Imaging, Three-Dimensional* ROC Curve Reproducibility of Results Shoulder Joint / radiography, surgery Tomography, X-Ray Computed / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Isokinetic testing of biceps strength and endurance in dominant versus nondominant upper extremities...
Next Document: Reversal of Autoimmunity by Boosting Memory-like Autoregulatory T Cells.