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Genicular Nerve Radiofrequency Ablation for Chronic Knee Pain After Total Knee Arthroplasty

Total Knee Arthroplasty Clinical Trial

Official title:
A Single-arm Pilot Study of Genicular Nerve Radiofrequency Ablation for Chronic Knee Pain After Total Knee Arthroplasty

Clinical Trial Summary

Determine if genicular nerve radiofrequency ablation (RFA) is a clinically effective intervention for patients with chronic knee pain post-total knee arthroplasty (TKA) as defined by pain.

Clinical Trial Description

More than 600,000 total knee arthroplasty (TKA) surgeries are performed each year in the United States, and approximately 20% of patients will experience some element of chronic knee pain or dissatisfaction related to pain following this procedure. The options for management are limited, and physicians often resort to chronic opioid management. This creates a less than ideal situation for our elderly population who are more sensitive to the deleterious effects of opioids and who would greatly benefit from pain-free, independent mobility. The investigators propose a single-arm pilot study looking at performing fluoroscopically guided genicular nerve radiofrequency ablation (RFA) for patients with chronic (>6 months) knee pain following a TKA. A new paradigm for treating post-TKA pain may be the use of RFA of the articular sensory nerve supply of the knee capsule, to desensitize the knee by blocking sensory afferents of the anterior capsule and thereby decreasing pain. While this modality has demonstrated efficacy for chronic knee pain due to osteoarthritis (OA) in the native knee, only one underpowered study has investigated this technique in chronic pain post-TKA. Further, this study targeted only three genicular nerves, while newer cadaveric studies have suggested multiple additional sensory nerves which if ablated may result in increased pain relief. A placebo-controlled explanatory trial of genicular nerve RFA for chronic pain post-TKA of appropriate size and statistical methodology has not been conducted. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05130216
Study type Observational
Source University of Utah
Contact
Status Enrolling by invitation
Phase
Start date September 22, 2021
Completion date September 2025
View Details
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