EVALUATION OF POST-OPERATIVE ANALGESIC EFFICACY OF LOCAL INFILTRATION ANALGESIA IN PATIENTS UNDERGOING TOTAL KNEE ARTHROPLASTY -A PROSPECTIVE RANDOMIZED STUDY

Abstract

Introduction – Total knee arthroplasty is considered as one of the most painful procedures in field of orthopedic surgery. In this study we intended to evaluate the analgesic efficacy of Local Infiltration Analgesia (LIA) with post-surgical single shot of adductor canal block in terms of good post-operative analgesia and early post- operative mobilization thus allowing faster rehabilitation and recovery and thereby improving the final outcome of TKA in long term. Material and method- A total of 60 patients were enrolled, 30 in each group. Group A received Standard General anesthesia & postoperative analgesia with a single shot of adductor canal block with 20cc of 0.25% ropivacaine along with intraoperative local infiltration analgesia. Group B also received Standard General anesthesia & postoperative analgesia with a single shot of adductor canal block with 20cc of 0.25% ropivacaine but intraoperative local infiltration analgesia was not administered in group B. Result- Group B patients required a greater number of rescue analgesic doses in comparison to Group A patients. The majority of the patients in Group A had early postoperative mobilization in comparison to Group B (p=0.003). Mean preoperative and 6-week postoperative WOMAC scores showed that difference was statistically significant (p=0.034), showing a significantly lower 6-week postoperative WOMAC score in Group A in comparison to Group B. Conclusion – Our study gives us a conclusion that intraoperative Local Infiltration Analgesia along with single shot of adductor canal block provides better post-operative pain relief & allows early mobilization of the patient thus enhancing the rehabilitation thereby improving the final outcome of the Total Knee Arthroplasty.