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World J Orthop. 2013 Oct 18;4(4):287-90. doi: 10.5312/wjo.v4.i4.287. eCollection 2013.

Reliability of preoperative measurement with standardized templating in Total Knee Arthroplasty.

Author information

1
Daniel Hernandez-Vaquero, School of Medicine, Department of Orthopaedic Surgery, Hospital St Agustín, University of Oviedo, 33400 Aviles, Asturias, Spain.

Abstract

AIM:

To investigate the correlation between preoperative measurement in total knee arthroplasty and the prosthetic size implanted.

METHODS:

A prospective double-blind study of 50 arthroplasties was performed. Firstly, the reliability and correspondence between the size of said measurement and the actual implant utilized was determined. Secondly, the existing correlation between the intra- and interobserver determinations with the intraclass correlation coefficient was analyzed.

RESULTS:

An overall correspondence of 54%, improving up to 92% when the measured size admitted a difference of one size, was found. Good intra- and interobserver reliability with an intraclass correlation coefficient greater than 0.90 (P < 0.001) was also discovered.

CONCLUSION:

Agreement between the preoperative measurement with standardized acetate templates and the prosthetic size implanted can be considered satisfactory. We thus conclude it is a reproducible technique.

KEYWORDS:

Correlation coefficient; Preoperative measurement; Prosthetic size; Templating; Total knee arthroplasty

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