• Deepika Chaubey, Hari Krishan Mahajan, Parshu Ram Chauhan, Preeti S Govind, Pushpinder Singh, Ravinder Dhanevar, and Abhinav Gupta.
• Resident, Department of Anaesthesia, ISIC Hospital, Vasant Kunj, New Delhi, India.
• J Clin Diagn Res. 2017 Jul 1; 11 (7): UC13-UC16.

IntroductionLocal infiltration of knee joint in arthroplasty, provide postoperative analgesia and preserves motor power of quadriceps, which helps in early mobilisation, as compared to femoral nerve block which paralyses vastus medialis.AimTo compare the quality of postoperative analgesia provided by femoral nerve block and local infiltration in unilateral Total Knee Arthroplasty (TKA).Materials And MethodsA prospective study was conducted on 60 patients (25-65 years) of ASA I and II, which were randomly(using random number table) divided into two groups - Group 1-femoral nerve block (FNB) and Group 2-Local Infiltration Analgesia (LIA). Patients with chronic pain and on opioids were excluded. Numeric rating scale (primary objective), sedation score, nausea vomiting score and motor power were analysed. The results were analysed by parametric and nonparametric tests using SPSS software version 22. p<0.05 was considered significant.ResultsPain relief was better in FNB Group (p-value <0.001) with less fentanyl demand (p-value <0.001), low sedation score (0.013, 0.179, 0.018, 0.129, 0.287, 0.432) but associated with low muscle power grading (<0.001).ConclusionFNB has better pain relief than LIA Group but range of motion was reduced in FNB Group grossly, effect on mobilisation remained comparable in both group.

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