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Total hip and knee replacement surgeries in Alberta utilization and associated outcomes
A Alibhai1, D Saunders, D W Johnston
1Health Information Unit, Department of Public Health Sciences, University of Alberta.
Healthcare Management Forum
|June 21, 2001
Summary
During healthcare restructuring, total hip arthroplasty (THA) and total knee arthroplasty (TKA) utilization increased, while complication rates decreased. However, readmissions for THA and TKA complications rose, indicating a complex shift in orthopedic surgery outcomes.
Area of Science:
- Orthopedic Surgery
- Health Services Research
- Public Health Policy
Background:
- Alberta's healthcare system underwent significant restructuring, including regionalization and funding reductions between 1994/95 and 1996/7.
- This period necessitated an examination of surgical procedure trends and outcomes.
Purpose of the Study:
- To analyze utilization trends of total hip arthroplasty (THA) and total knee arthroplasty (TKA).
- To assess changes in post-operative complications and readmissions for THA and TKA during healthcare system restructuring.
Main Methods:
- A six-year retrospective analysis utilizing hospital separation and healthcare insurance databases.
- Examined trends in inpatient procedure volumes, average lengths of stay, post-operative complications, and one-year readmissions.
Main Results:
- THA rates increased by 18% and TKA rates by 73% over six years.
- Average length of stay decreased by over 50% for both procedures.
- Post-operative complication rates decreased by 19% (THA) and 21% (TKA), but readmissions due to complications increased by 32% (THA) and 2% (TKA).
Conclusions:
- Despite overall decreased hospitalizations, THA and TKA procedure rates and utilization have increased.
- Length of stay for these procedures significantly reduced.
- While in-hospital complication rates declined, post-discharge readmissions for complications have risen, with observed regional and sex differences.