Inter- and intra-observer reliability of patellar height measurements in patients with and without patellar instability on plain radiographs and magnetic resonance imaging.
Introduction: Many patella height indices exist in the literature. There is no single universally accepted radiological assessment for measuring patella height. The aims of this study were to determine which of the commonly used indices can most reliably measure patella height and compare the findin...
| Publicado en: | Skeletal Radiology Vol. 51; no. 6; pp. 1201 - 1215 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Springer Nature
Jun2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=156400740&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 156400740 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03642348 O14 jtl: Skeletal Radiology issn: 03642348 maglogo: N pubinfo: dt: Jun2022 vid: 51 iid: 6 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 156400740 156400740 NLM34718849 156400740 10.1007/s00256-021-03937-y NLM34718849 156400740 ppf: 1201 ppct: 14 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Inter- and intra-observer reliability of patellar height measurements in patients with and without patellar instability on plain radiographs and magnetic resonance imaging. aug: au: Picken, Stephen Summers, Harry Al-Dadah, Oday affil: Department of Trauma and Orthopaedic Surgery, South Tyneside District Hospital, Harton Lane, NE34 0PL, South Tyneside, UK sug: subj: Knee Joint Joint Instability Patella Anatomy and Histology Knee Radiography Magnetic Resonance Imaging Methods Reproducibility of Results Interrater Reliability Intrarater Reliability Human Case Control Studies Body Weights and Measures Intraclass Correlation Coefficient ab: Introduction: Many patella height indices exist in the literature. There is no single universally accepted radiological assessment for measuring patella height. The aims of this study were to determine which of the commonly used indices can most reliably measure patella height and compare the findings on both plain X-ray and magnetic resonance imaging (MRI) of the knee.Methods: This case-controlled study compared patients with recurrent patella instability (patella group) to a control group. Two observers measured six validated patella height indices on X-ray and MRI of both groups at two separate time periods. Between-group and within-group statistical analysis was undertaken of the data. The inter- and intra-observer reliability was assessed using the intraclass correlation coefficient (ICC) and the kappa measure of agreement (k).Results: Forty-four patients comprised the patella group and 50 patients the control group. There was a significant difference of most indices between the two groups (p < 0.05). There was a significant difference of most indices between the two imaging modalities (p < 0.05). The Insall-Salvati ratio had the greatest inter-observer reliability for both X-ray and MRI (ICC = 0.79 to 0.97; p < 0.001) (k = 0.50 to 1.00; p < 0.001).Conclusion: Patella height indices significantly differ when measured on X-ray as compared to MRI. This may infer that a different set of normative values are required for each radiological modality, which we have proposed in this study. Overall, the Insall-Salvati ratio performed best and shows a high degree of intra- and inter-observer reliability on both X-ray and MRI. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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