Related Experiment Videos
C-reactive protein (CRP) levels after elective orthopedic surgery
S Larsson1, U Thelander, S Friberg
1Department of Orthopedics, University Hospital, Umeå, Sweden.
Clinical Orthopaedics and Related Research
|February 1, 1992
Summary
C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were measured after orthopedic surgery. CRP is a better early indicator of postoperative infection than ESR, as it returns to normal levels faster.
Area of Science:
- Orthopedic Surgery
- Biomarkers
- Inflammation Markers
Background:
- Postoperative monitoring for complications is crucial.
- C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) are common inflammatory markers.
- Differentiating normal inflammatory responses from infection is challenging.
Purpose of the Study:
- To compare the diagnostic utility of CRP and ESR in detecting early postoperative infections after orthopedic surgery.
- To establish typical CRP and ESR profiles following specific orthopedic procedures.
Main Methods:
- Serial measurements of CRP and ESR were performed in patients undergoing total hip arthroplasty, knee arthroplasty, and lumbar microdiskectomy.
- Patients had uncomplicated elective orthopedic surgeries.
- Data were analyzed to determine peak levels, return to normal, and correlation with surgical factors.
Main Results:
- CRP levels peaked by day 2 or 3 post-surgery and normalized within 21 days.
- ESR levels peaked around day 5 and remained elevated longer than CRP.
- No correlation was found between CRP response and anesthesia, bleeding, transfusion, operation time, drugs, age, or gender.
Conclusions:
- CRP is a more reliable early diagnostic marker for postoperative infections than ESR.
- A second rise or persistently elevated CRP level after uncomplicated surgery suggests infectious complications.