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Year : 2021  |  Volume : 7  |  Issue : 2  |  Page : 33-36

Comparative study of clinical effects of ultrasonography-guided adductor canal block versus femoral nerve block for postoperative analgesia in total knee replacement surgery under spinal anesthesia

1 Department of Anaesthesiology, Critical Care and Pain, R.G. Kar Medical College and Hospital, Kolkata, West Bengal, India
2 Department of Anaesthesiology, Critical Care and Pain, IPGMER and SSKM Hospital, Kolkata, West Bengal, India

Correspondence Address:
Dipasri Bhattacharya
B26/10, Abhyudoy Housing, EKTP Phase IV, P.O.EKT, Kolkata - 700 107, West Bengal
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jrap.jrap_8_22

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Prevention of postoperative pain and preservation of Quadriceps muscle strength is essential for mobilization after total knee replacement (TKR) surgery. Peripheral nerve blocks are important modalities of pain management. We have compared adductor canal block (ACB) versus femoral nerve block (FNB) for assessment of the intensity of pain, duration of analgesia, consumption of tablet paracetamol as rescue analgesic, and Quadriceps range of motion following TKR. A double-blind randomized prospective study was carried out on 74 patients scheduled for TKR under spinal anesthesia. Patients were divided into two equal groups. Group ACB (n = 37) received ACB and Group FNB (n = 37) received FNB at the end of the operation. The intensity of postoperative pain was assessed by the Visual Analog Scale (VAS) score. Duration of analgesia and Quadriceps range of motion were assessed postoperatively. Group ACB showed low cumulative VAS, increased duration of analgesia, and increased Quadriceps range of motion (P ≤ 0.5) compared to Group FNB. Ultrasound-guided ACB is a better alternative to FNB for postoperative analgesia and better Quadriceps function in patients undergoing TKR under spinal anesthesia.

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