Osteoarthritis, Knee Clinical Trial
Official title:
Comparative Study of Neurotomy by Radiofrequency of Genicular Nerves, Guided by Fluoroscopy, and Neurotomy by Radiofrequency of Saphenous Nerve, Guided by Ultrasound, for the Treatment of Chronic Knee Pain in Patients With Osteoarthritis .
This project is one of four components of a thematic project that aims to evaluate the use
of ultrasound in regional and infiltration blocks, called "Use of ultrasound in regional
blocks and infiltration for the treatment of acute and chronic pain".
It aims to evaluate quantitatively and qualitatively the knee pain control in patients with
osteoarthritis after neurotomy by saphenous nerve radiofrequency guided by ultrasound ,
compared to neurotomy by radiofrequency of genicular nerves guided by fluoroscopy .
Differences between total consumption of analgesics, side effects of medications , impact on
quality of life and functional capacity in patients undergoing saphenous nerve neurotomy by
radiofrequency guided by ultrasound compared to neurotomy by radiofrequency of genicular
nerves guided by fluoroscopy, will also be evaluated.
BACKGROUND: Osteoarthritis of the knees is currently a major public health problem, with
patients suffering from pain and functional limitation. Depending on the severity of the
impairment, the definitive treatment is surgical, but the old ages often associated and
morbidities present in these patients some times limit such conduct. More effective
treatments for pain control are necessary.
OBJECTIVES: To evaluate quantitative and qualitative pain control in patients with
osteoarthritis in knees after neurotomy of saphenous nerve by radiofrequency guided by
ultrasound, compared to neurotomy by radiofrequency of genicular nerves guided by
fluoroscopy.
METHODS: This was a prospective, randomized clinical study and blind to the evaluators. Will
include 20 patients with knee osteoarthritis grade III or IV, refractory to medical
treatment. A group will be submitted to neurotomy by radiofrequency of genicular nerves
guided by fluoroscopy and the other group will receive neurotomy by radiofrequency of
saphenous nerve, guided by ultrasound. They will be assessed in pain intensity at rest and
movement, functionality, satisfaction and adverse effects related to treatment. Patients
will be evaluated 15 days, 1 month, 3, 6 and 12 months after the procedure.
;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Investigator, Outcomes Assessor), Primary Purpose: Treatment
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