• Syed Kamran Ahmed, Muhammad Gulfam Shahzad, and Sundus Iftikhar.
• Dr. Syed Kamran Ahmed, FCPS. Head of Department Orthopaedics and Traumatology / Residency Program Director, The Indus Hospital and Health Network, Plot C-76, Sector 31/5, Korangi Crossing Karachi-75190, Karachi - Pakistan.
• Pak J Med Sci. 2022 Jul 1; 38 (6): 1514-1519.

Background And ObjectiveKnowledge of the C-reactive protein trend and deviation from the expected value may give an early indication of a possible postoperative infection. According to previous studies, CRP appears to be a more sensitive and specific marker of postoperative infections than ESR and white cell count. This study was conducted to determine the diagnostic accuracy of C-reactive protein to rule out surgical site infection in patients undergoing hip fracture surgery.MethodsThis cross-sectional study was conducted at The Indus Hospital and Health Network, Karachi from July 1, 2018 to February 24, 2020. All operative hip fracture patients aged 11-90 years were included. CRP was done on admission, days 3, 14 and 28. Wound assessment was done using the criteria of the Center of Disease Control and prevention on postoperative days 3, 14 and 28. Data was analyzed using STATA version 16.ResultsOut of 152 patients, 11(7.2%) developed infection. One patient (0.7%) presented with the infection on day three post-surgery, eight (5.3%) and two (1.3%) patients on days 14 and 28 respectively. CRP levels at admission had poor diagnostic accuracy for diagnosing infection at 14th and 28th day post-surgery respectively (AUC=0.490 and 0.447). CRP levels measured on post-op Day-3 (cutoff value 230mg/dl) had good diagnostic accuracy for diagnosing infection at 14th and 28th day post-surgery respectively (AUC=0.819 and 0.818).ConclusionCRP level at post-operative day three is a sensitive indicator of infection after hip fracture surgery.Copyright: © Pakistan Journal of Medical Sciences.

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