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Agreement and Reliability of Lateral Patellar Tilt and Displacement following Total Knee Arthroplasty with Patellar Resurfacing.
Agreement and Reliability of Lateral Patellar Tilt and Displacement following Total Knee Arthroplasty with Patellar Resurfacing. The journal of knee surgery Kleimeyer, J. P., McQuillan, T. J., Arsoy, D. n., Aggarwal, V. K., Amanatullah, D. F. 2019Abstract
Patellar position and alignment may be measured on routine axial radiographs by various techniques; however, the agreement and reliability of such measurements with a resurfaced patella remain unknown. This study evaluated the range and reliability of lateral patellar tilt and lateral patellar displacement following total knee arthroplasty (TKA) with a resurfaced patella among three observers on 45° Merchant view in 139 TKAs. Intraclass correlation coefficient (ICCs) were used to evaluate intraobserver agreement (IOA) and inter-rater reliability (IRR). IRR was high between each of the observers for lateral patellar tilt (ICC?=?0.8) and lateral patellar displacement (ICC?=?0.87). IOA was also high upon repeat measurement for the same observer for lateral patellar tilt (ICC?=?0.90) and lateral patellar displacement (ICC?=?0.86). Therefore, lateral patellar tilt and lateral patellar displacement are reproducible measurements of patellar position on a Merchant axial radiograph following a well-functioning TKA with a resurfaced patella.
View details for DOI 10.1055/s-0039-1700843
View details for PubMedID 31698498