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A Community-Based Hip Fracture Registry: Population, Methods, and Outcomes
Maria C S Inacio1, Jennifer M Weiss2, Alex Miric3
1Epidemiologist in the Surgical Outcomes and Analysis Department at Kaiser Permanente in San Diego, CA. maria.cs.inacio@kp.org.
The Permanente Journal
|June 10, 2015
Summary
This study analyzed 12,562 hip fracture cases from 2009-2011. Key findings include high readmission and mortality rates, with hemiarthroplasty being the most common surgical procedure.
Area of Science:
- Orthopedic Surgery
- Geriatric Medicine
- Public Health
Background:
- Hip fractures are a significant health concern in older adults, often leading to high morbidity and mortality.
- Understanding treatment patterns and outcomes is crucial for improving patient care and reducing healthcare burdens.
Purpose of the Study:
- To describe the characteristics of hip fracture patients and their surgical treatments.
- To report on the 90-day readmission and mortality rates following hip fracture surgery.
- To analyze the association between surgeon/facility volume and patient outcomes.
Main Methods:
- Retrospective analysis of 12,562 hip fracture cases from the Kaiser Permanente Hip Fracture Registry (2009-2011).
- Data collected included patient demographics, comorbidities, surgical procedures, surgeon, and facility information.
- Outcomes assessed were 90-day readmission and mortality rates.
Main Results:
- The study population (N=12,562) was predominantly older (≥75 years), female, and white, with 32% having ≥5 comorbidities.
- Hemiarthroplasty was the most frequent procedure (33.1%).
- The 90-day readmission rate was 22.1%, and the 90-day mortality rate was 12.3%.
Conclusions:
- Hip fractures in this cohort were associated with substantial 90-day readmission and mortality rates.
- Treatment involved common procedures like hemiarthroplasty, often performed by medium-volume surgeons in high-volume facilities.
- Further research may explore strategies to mitigate these adverse outcomes in elderly hip fracture patients.

