• P Schräder, O Boy, W Schleiz, R Dienst, C Reinert, V Sänger, H-H Schauwecker, W Siebert, and H-P Scharf.
• BQS Bundesgeschäftsstelle Qualitätssicherung, Kanzlerstrasse 4, 40472, Düsseldorf, Deutschland. peter.schraeder@bqs-online.de
• Orthopade. 2008 Oct 1;37(10):1016-26.

BackgroundThe German mandatory quality assurance programme collects data from all primary total hip and knee replacements. The quality of the indication is measured by clinical and radiological criteria. The results were analysed in terms of differences in establishing the indication subject to patient and hospital characteristics.Materials And MethodsData on more than 270,000 primary total hip and knee replacements that were operated in 2006 in Germany were analysed concerning differences in the quality of the indication subject to age, gender, hospital volume and density of population and hospitals (metropolitan vs rural areas). The statistical analysis was done by exact Fisher's test.ResultsThe quality of the indication was statistically significantly better in men, patients 60 and older, in rural areas and in high volume hospitals (50 and more joint replacements per year).DiscussionData of this mandatory German quality assurance programme are useful to describe differences in medical care. The results are valid and complete. An exact analysis of the reasons for these differences is difficult though. Data focus is on quality assurance and represent only in-hospital results.ConclusionFurther analyses are necessary to ascertain whether the differences in quality of care are deficits or only variances in medical care.

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