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Clinical Orthopaedics and Related Research®

Erschienen in:

01.01.2012 | Symposium: Papers Presented at the Annual Meetings of The Knee Society

Patient-related Risk Factors for Postoperative Mortality and Periprosthetic Joint Infection in Medicare Patients Undergoing TKA

verfasst von: Kevin J. Bozic, MD, MBA, Edmund Lau, MS, Steven Kurtz, PhD, Kevin Ong, PhD, Daniel J. Berry, MD

Erschienen in: Clinical Orthopaedics and Related Research® | Ausgabe 1/2012

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Abstract

Background

The impact of specific baseline comorbid conditions on the relative risk of postoperative mortality and periprosthetic joint infection (PJI) in elderly patients undergoing TKA has not been well defined.

Questions/purposes

We calculated the relative risk of postoperative mortality and PJI associated with 29 comorbid conditions in Medicare patients undergoing TKA.

Patients and Methods

The Medicare 5% sample was used to calculate the relative risk of 90-day postoperative mortality and PJI as a function of 29 preexisting comorbid conditions in 83,011 patients who underwent primary TKA between 1998 and 2007.

Results

The independent risk factors for 90-day postoperative mortality (in decreasing order of significance) were congestive heart failure, metastatic cancer, renal disease, peripheral vascular disease, cerebrovascular disease, lymphoma, cardiac arrhythmia, dementia, pulmonary circulation disorders, and chronic liver disease. The independent risk factors for PJI (in decreasing order of significance) were congestive heart failure, chronic pulmonary disease, preoperative anemia, diabetes, depression, renal disease, pulmonary circulation disorders, obesity, rheumatologic disease, psychoses, metastatic tumor, peripheral vascular disease, and valvular disease.

Conclusions

We believe this information important when counseling elderly patients regarding the risks of mortality and PJI after TKA and risk-adjusting publicly reported TKA patient outcomes.

Level of Evidence

Level II, prognostic study. See the Guidelines for Authors for a complete description of levels of evidence.

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Titel: Patient-related Risk Factors for Postoperative Mortality and Periprosthetic Joint Infection in Medicare Patients Undergoing TKA
verfasst von: Kevin J. Bozic, MD, MBA
Edmund Lau, MS
Steven Kurtz, PhD
Kevin Ong, PhD
Daniel J. Berry, MD
Publikationsdatum: 01.01.2012
Verlag: Springer-Verlag
Erschienen in: Clinical Orthopaedics and Related Research® / Ausgabe 1/2012
Print ISSN: 0009-921X
Elektronische ISSN: 1528-1132
DOI: https://doi.org/10.1007/s11999-011-2043-3

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Patient-related Risk Factors for Postoperative Mortality and Periprosthetic Joint Infection in Medicare Patients Undergoing TKA