Abstract
The EndoCert® -Initiative system sets specific requirements for the structural, process and result
quality in certified Arthroplasty Centers in Germany. However, it remains unclear
to what extent the certification process can increase the quality in total hip and
knee arthroplasty. Aim of the comparative retrospective study is to analyse the change
in quality of total hip arthroplasty in a communal hospital before and after the certification
process. All primary total hip arthroplasties (n = 366) between 2013 and 2016 were
included in the study retrospectively and grouped by treatment period. Treatment was
performed in group 1 without clinical pathways, in group 2 pathway-controlled without
a valid certificate and in group 3 pathway-controlled after final completion of the
certification process. Outcome quality was analysed using quality indicators defined
by the EndoCert-Initiative and further predefined indicators. Results show quality
improvement under
certified pathway-controlled treatment, e.g. time of surgery, cup and stem positioning,
blood transfusion rate, periprosthetic fractures. However, improvements were not significantly
in all cases and limitations must be recognized. Positive effects of the certification
process legitimate capital investment and efforts. Further quality indicators may
be implemented in the certification process to improve quality of treatment in arthroplasty.
Key words total hip arthroplasty - outcome and process assessment - clinical pathways - certification