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C-Reactive Protein in Orthopaedic Surgery.

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C-reactive protein (CRP) is a valuable infection marker in orthopaedics, aiding in early postoperative infection detection and monitoring. While useful, CRP levels must always be interpreted alongside clinical signs for accurate diagnosis.

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Area of Science:

  • Biochemistry
  • Clinical Medicine
  • Orthopaedic Surgery

Background:

  • C-reactive protein (CRP) is a widely used laboratory marker for infection and inflammation.
  • It is frequently employed across various medical departments, including orthopaedics, for diagnostic and monitoring purposes.

Purpose of the Study:

  • To evaluate the utility of C-reactive protein (CRP) as an infection marker in orthopaedic surgery.
  • To assess CRP's role in diagnosing early postoperative infections, monitoring surgical trauma, and risk stratification.

Main Methods:

  • Analysis of CRP levels in patients undergoing orthopaedic procedures.
  • Correlation of CRP concentrations with surgical trauma, complications, and bacterial infections.
  • Comparison of CRP with other inflammatory markers like White Blood Cell count (WBC) and Erythrocyte Sedimentation Rate (ESR).

Main Results:

  • CRP is superior to conventional infection parameters and serves as a basic inflammatory marker.
  • A peak CRP level typically occurs on the second or third postoperative day, reflecting surgical trauma.
  • A secondary rise in CRP post-surgery suggests a complication, with significantly elevated levels indicating bacterial infection (cut-off ~10 mg/dl).
  • CRP also functions as a preoperative risk stratification marker and an independent fracture-risk factor.

Conclusions:

  • C-reactive protein is a significant and common inflammatory parameter in orthopaedic surgery, often more informative than WBC or ESR.
  • CRP is particularly helpful for early detection of postoperative infections.
  • CRP results must always be correlated with clinical findings for accurate patient assessment.