Thirty-Day Readmission Rates Comparing Specific Cruciate Retaining and Posterior Stabilizing Knee Arthroplasties to...

Area of Science:

• Orthopedic Surgery
• Health Services Research

Background:

• Unplanned hospital readmissions after total knee arthroplasty (TKA) incur significant financial penalties.
• Assessing institutional readmission rates against national benchmarks is crucial for identifying areas for quality improvement.

Purpose of the Study:

• To compare 30-day TKA readmission rates between a single-prosthesis cohort and the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) Database.
• To analyze differences in readmission causes and identify patient-specific factors associated with readmissions.

Main Methods:

• Retrospective comparison of 845 TKAs using a single prosthesis against 12,035 TKAs from the NSQIP Database.
• Analysis focused on readmission rates, causes of readmission, and patient comorbidities.

Main Results:

• The single-prosthesis cohort exhibited a lower 30-day readmission rate (2.1%) than the NSQIP cohort (4.3%).
• Surgically related complications accounted for fewer readmissions in the single-prosthesis group (44% vs. 57%).
• Patients in the single-prosthesis group had higher BMIs and more comorbidities like diabetes and cardiovascular disease.

Conclusions:

• The 30-day readmission rate for primary TKAs in the studied cohort was lower than the national average.
• Understanding patient factors and readmission causes is vital for optimizing TKA outcomes and reducing penalties.