• Arch Orthop Trauma Surg · Aug 2024

    Total knee arthroplasty in schizophrenia patients: early complications and cost in a propensity-matched national database study.

    • Felipe Gonzalez Gutierrez, Patrick Ojeaga, and Senthil Sambandam.
    • University of Texas Southwestern, 5323 Harry Hines Blvd, Dallas, TX, 75390, USA. felipe.gonzalezgutierrez@utsouthwestern.edu.
    • Arch Orthop Trauma Surg. 2024 Aug 1; 144 (8): 358335903583-3590.

    IntroductionStudies investigating the link between mental health disorders and complications following total knee arthroplasty (TKA) have found worse outcomes in individuals with such disorders. Therefore, risk factors and outcomes following TKA in patients with schizophrenia should be better understood. This study aims to investigate cost and duration of hospital stay, inpatient complications, and mortality associated with TKA in patients with schizophrenia.Materials And MethodsUtilizing the NIS database from 2016 to 2019, patients that underwent TKA were selected using ICD-10 codes. The selected patients were classified into a schizophrenia or control group and cost, hospitalization length, complications, and mortality rates were compared between the two groups in an unmatched and matched analysis.ResultsOur study dataset consisted of 558,371 patients that underwent a TKA during 2016 to 2019. 1,015 (0.2%) patients in the sample had a diagnosis of schizophrenia while the remaining 557,357 (99.8%) patients had no record of schizophrenia. An unmatched analysis found that schizophrenia patients had longer duration of hospital stay and greater charges incurred. Acute renal failure, myocardial infarction (MI), blood loss anemia, pneumonia, DVT, periprosthetic fracture, prosthetic dislocation, and periprosthetic infections were post-op complications with higher rates in the schizophrenia group. A matched cohort analysis found that schizophrenia patients still had longer duration of hospital stay and greater charges incurred. However, only acute renal failure, blood loss anemia, and pneumonia were found at higher rates in the schizophrenia group following TKA.ConclusionsSchizophrenia patients had a significantly longer hospital stay and increased charges acquired during their stay compared to the control group following TKA. Acute renal failure, blood loss anemia, and pneumonia were medical complications with an increased risk following TKA in patients with schizophrenia in a matched analysis. Increased care during the perioperative period following TKA in individuals with schizophrenia is thus warranted.© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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