TY - JOUR AU - Ammar Hafeez , Hamza Fareed , Nadia Atiq, Inamullah Shah, Ammar Hafeez , Hamza Fareed , Nadia Atiq, Inamullah Shah PY - 2019/05/02 Y2 - 2024/03/28 TI - Utility of Positive Suction Drain Tip Culture in Early Detection of Infection After Total Knee Replacement JF - Journal of Rawalpindi Medical College JA - JRMC VL - 23 IS - 1 SE - Articles DO - UR - http://journalrmc.com/index.php/JRMC/article/view/1094 SP - AB - <p>Introduction: To compare the frequency of wound <br>infection in positive and negative drain tip culture in <br>patients after primary total knee replacement. <br>Methods: In this descriptive study patients <br>undergoing primary total knee replacement for <br>osteoarthritis were included. Early postoperative <br>wound infection was defined as patient developing <br>redness, pain, heat or swelling at surgical site; or <br>drainage of pus within 7 postoperative days. Positive <br>culture was considered as bacterial growth within 48 <br>hours after suction drain tip was cultured on media. <br>Negative culture was defined as no bacterial growth <br>in 48 hours after placing the suction drain tip on <br>culture media. Closed suction drain tips were sent <br>for culture and sensitivity on 3rd postoperative day. <br>Patients were followed for 7 days for any signs of <br>infection. Effect modification was catered to by <br>stratification for malnutrition defined as serum <br>albumin less than 3.5g/dl; and obesity that was <br>considered when BMI was equal to or more than <br>30kg/m2. <br>Results: The mean age of patients was 57.28±7.37 <br>years. Positive suction drain was found in 9.17% , <br>while 6.67% had infection among all cases. Among 8 <br>cases with infection there were 6(75%) who were <br>positive on suction drain tip and among 112 non-<br>infected cases there were 5(4.5%) who had positive <br>suction drain tip. There was significant association <br>between infection and suction drain tip positivity, p-<br>value being &lt; 0.001. <br>Conclusion: Suction drain tip culture analysis can <br>predict infection after primary total knee <br>replacement.</p> ER -