117 posters,  17 sessions,  7 topics,  774 authors 

ePostersLive® by SciGen® Technologies S.A. All rights reserved.

2863
Cooled Radiofrequency Ablation of the Genicular Nerves for Chronic Pain due to Knee Osteoarthritis: 6-month outcomes & Predictors of Successful Treatment Response
Friday, 2:00 PM - 04:00 PM
Indigo 202A

Primary tabs

Please note, medically challenging cases are removed three months after the meeting and scientific abstracts after three years.

Rate

No votes yet

Statistics

689 reads

Cooled Radiofrequency Ablation of the Genicular Nerves for Chronic Pain due to Knee Osteoarthritis: 6 Month Outcomes & Predictors of Successful Treatment Response

Zachary McCormick, MD, Marc Korn MD, Rajiv Reddy MD, Austin Marcolina BS, David Dayanim MD, Ryan Mattie MD, Daniel Cushman MD, Meghan Bhave MD, Dost Khan MD, Geeta Nagpal MD, David Walega, MD

Northwestern University Feinberg School of Medicine, Chicago, IL & University of California San Francisco, San Francisco, CA

 

 

Introduction

  • Total knee arthroplasty (TKA) is often considered after failed conservative management of chronic knee pain from osteoarthritis 
  • TKR is associated with perioperative and post-operative risks including new or refractory chronic knee pain in 20-40% at 6 months after surgery
  • Genicular nerve cooled radiofrequency ablation (C-RFA) is an innovative treatment option to treat knee pain from OA and may be an alternative to TKR in some patients
  • C-RFA of genicular nerves disrupts afferent pain signals from the anterior knee joint capsule
  • In this study, patients who underwent C-RFA of genicular nerves for chronic knee pain from OA  were evaluated 6-months after the procedure
  • Treatment outcomes and factors that predict clinically significant treatment responses were identified.

 

 

Methods

 

  • Patients contacted for standardized phone survey ≥ 6 months after C-RFA
  • Medical record review of these patients
  • Outcomes we looked for included:

                        Numeric rating scale (NRS)

                        Medication Quantification Scale III (MQSIII)

                        Patient Global Impression of Change (PGIC)

                        Information about surgical intervention if done

 

 

Results

  • 35% of knees treated met definition of clinical success

                        ≥50% reduction in NRS

                        >3.4 point reduction in MQSIII

                        PGIC consistent with “very much improved” or “improved”

                        No TKA performed in this cohort of patients

  • More likely to report treatment success when:

                        Duration of pain ≤2 years

                        Pain relief ≥80% with diagnostic blocks

Enter Poster ID (e.gGoNextPreviousCurrent