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Indian Journal of Clinical Anaesthesia


Role of ultrasound in diagnostic genicular nerve block for knee osteoarthritis pain


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Research Article

Author Details : Sandeep Khuba*, Saipriya Tewari, Sanjay Kumar, Sujeet Gautam, Anil Agarwal

Volume : 6, Issue : 4, Year : 2019

Article Page : 565-569


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Abstract

Objective: To evaluate the role of ultrasound in diagnostic genicular nerve block for knee osteoarthritis
pain
Introduction: Radiofrequency neurotomy of the genicular nerves is a novel technique for the alleviation
of knee pain in patients with advanced osteoarthritis (OA). The efficacy of radiofrequency neurotomy
may be enhanced by prior positive diagnostic genicular block. To date, genicular nerve injections have
been performed under fluoroscopic guidance, in which needle is placed with reference to bony landmarks.
Ultrasound-guided genicular nerve injections have recently been shown to be accurate. In the present study,
we have evaluated the role of ultrasound (US) to achieve successful diagnostic genicular nerve block.
Materials and Methods: 20 patients (age 50-80 years) with advanced knee osteoarthritis pain (kellgran
Lawrence grade 3-4) who failed conservative treatment underwent ultrasound guided genicular nerve block.
The genicular nerve block was performed on a total of 24 knees. Visual analogue scale (VAS) of pain of
each was assessed before and 2 hours after the procedure.
Results: VAS scores were found to reduce from 75.2312.89 mm to 29.52 10.71 mm post-procedure
(P<0>50% pain relief.
Conclusion: Ultrasound is a valuable tool for performing the diagnostic genicular block of the knee.

Keywords: Knee Pain, Genicular nerve block, Diagnostic block, Ultrasound in chronic pain, Radiofrequency ablation, Osteoarthritis knee.

Doi : 10.18231/j.ijca.2019.110

How to cite : Khuba S, Tewari S, Kumar S, Gautam S, Agarwal A, Role of ultrasound in diagnostic genicular nerve block for knee osteoarthritis pain. Indian J Clin Anaesth 2019;6(4):565-569

Copyright © 2019 by author(s) and Indian J Clin Anaesth. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (creativecommons.org)