@phdthesis{Szewczykowski2023, author = {Szewczykowski, Viktoria}, title = {Definitionen und Diagnostika der periprothetischen Infektion}, doi = {10.25972/OPUS-29932}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-299327}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2023}, abstract = {Die periprothetische Infektion (PPI) ist eine seltene aber schwerwiegende Komplikation nach Implantation einer H{\"u}ftprothese. Diese Arbeit hat verschiedene Aspekte bez{\"u}glich der Diagnostik und Definition der PPI untersucht. Der prim{\"a}re Fokus lag auf der mikrobiologischen Punktionsdiagnostik und seiner Korrelation mit mikrobiologischen Befunden aus intraoperativen Proben. Zudem war die Gegen{\"u}berstellung der verschiedenen Definitionen einer PPI ein weiterer Schwerpunkt der Arbeit. Des Weiteren wurden auch einige weitere Untersuchungsparameter der PPI untersucht und gegen{\"u}bergestellt.}, language = {de} } @article{BoelchRueecklStrecketal.2021, author = {Boelch, Sebastian Philipp and R{\"u}eckl, Kilian and Streck, Laura Elisa and Szewczykowski, Viktoria and Weißenberger, Manuel and Jakuscheit, Axel and Rudert, Maximilian}, title = {Diagnosis of chronic infection at total hip arthroplasty revision is a question of definition}, series = {Biomed Research International}, volume = {2021}, journal = {Biomed Research International}, doi = {10.1155/2021/8442435}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-265762}, year = {2021}, abstract = {Purpose. Contradicting definitions of periprosthetic joint infection (PJI) are in use. Joint aspiration is performed before total hip arthroplasty (THA) revision. This study investigated the influence of PJI definition on PJI prevalence at THA revision. Test quality of prerevision aspiration was evaluated for the different PJI definitions. Methods. 256 THA revisions were retrospectively classified to be infected or not infected. Classification was performed according to the 4 different definitions proposed by the Musculoskeletal Infection Society (MSIS), the Infectious Diseases Society of America (IDSA), the International Consensus Meeting (ICM), and the European Bone and Joint Infection Society (EBJIS). Only chronic PJIs were included. Results. PJI prevalence at revision significantly correlated with the applied PJI definition (p=0.01, Cramer's V=0.093). PJI prevalence was 20.7\% for the MSIS, 25.4\% for the ICM, 28.1\% for the IDSA, and 32.0\% for the EBJIS definition. For synovial fluid white blood cell count, the best ROC-AUC for predicting PJI was 0.953 in combination with the MSIS definition. Conclusion. PJI definition significantly influences the rate of diagnosed PJIs at THA revision. Synovial fluid white blood cell count is a reliable means to rule out PJI. In cases with a borderline high synovial white blood cell count before THA revision as the only sign of chronic PJI, an extended diagnostic work-up should be considered.}, language = {en} }