Reliability of digital radiographs for pediatric lower extremity alignment.
Background: Digital radiography is the standard method for sharing and storing radiographs. The purpose of this study was to evaluate the interobserver and intraobserver reliability of computer-based and manual measurement methods in determining lower extremity alignment on digital images of pediatr...
| Published in: | Journal of Pediatric Orthopaedics Vol. 32; no. 6; pp. 631 - 636 |
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| Main Authors: | , , , , , , , , , , , |
| Format: | research Journal Article |
| Published: |
Lippincott Williams & Wilkins
2012 Sep
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=108067520&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 108067520 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02716798 4CC jtl: Journal of Pediatric Orthopaedics issn: 02716798 maglogo: N pubinfo: dt: 2012 Sep vid: 32 iid: 6 pid: 433 pub: Lippincott Williams & Wilkins place: Baltimore, Maryland artinfo: ui: 108067520 108067520 NLM22892628 2011652205 10.1097/BPO.0b013e3182694e07 NLM22892628 108067520 ppf: 631 ppct: 5 formats: tig: atl: Reliability of digital radiographs for pediatric lower extremity alignment. aug: au: Nowicki PD Vanderhave KL Farley FA Kuhns LR Dahl W Caird MS Nowicki, Philip D Vanderhave, Kelly L Farley, Frances A Kuhns, Lawrence R Dahl, William Caird, Michelle S affil: Department of Orthopaedic Surgery, Kalamazoo Center for Medical Studies, Michigan State University, Kalamazoo, MI, USA sug: subj: Femur Radiography Leg Radiography Radiographic Image Enhancement Methods Tibia Radiography Adolescence Child Female Femur Abnormalities Human Image Interpretation, Computer Assisted Methods Leg Abnormalities Male Observer Bias Reproducibility of Results Tibia Pathology Adolescent: 13-18 years Child: 6-12 years Female Male ab: Background: Digital radiography is the standard method for sharing and storing radiographs. The purpose of this study was to evaluate the interobserver and intraobserver reliability of computer-based and manual measurement methods in determining lower extremity alignment on digital images of pediatric patients. Methods: Thirty-two digital standing long leg radiographs of pediatric patients were evaluated with 9 varus, 11 valgus, and 12 neutral alignment films. Six evaluators measured the digital images with a standard computer-based measurement method twice and a manual paper print out method twice. Measurements included the lateral distal femoral angle (LDFA), the medial proximal tibia angle (MPTA), the joint line congruency angle, and the mechanical axis deviation (MAD). Interobserver and intraobserver reliability for computer-based and manual methods were calculated using intraclass correlation coefficients. Results: The interobserver reliability for all angular measurements was found to be fair to good for both measurement methods. The MAD had excellent intraobserver and interobserver reliability. LDFA and MPTA interobserver reliabilities were better by the manual method than the computer-based method. Intraobserver reliability was higher in the computer-based LDFA than manual methods, whereas the MPTA measurements were more reliable by manual methods. Conclusions: Computer-based and manual methods for determining lower extremity alignment from digital radiographs are not dissimilar and both provide fair to good reliability. The MAD was a highly reliable measurement. Overall, measurement of the digital images was not as reliable by either method as measurement of traditional full-length teloroentgenograms. The observer should be familiar with the measurement program to minimize errors. Digital images can be measured reliably and then used for treatment decisions, however, time and care should be taken with measurements. Level Of Evidence: Diagnostic level II. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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