Genicular Radiofrequency Ablation for Unilateral Knee Arthroplasty Pain Management (RFA)

Lyman Medical Research Foundation, Inc.

Status: Unknown

Conditions: Osteoarthritis of the Knee

Treatments: Procedure: Control; Procedure: t-RFA; Procedure: C-RFA

Study type: Interventional

Funder types: Other; Industry

Identifiers

NCT02925442

OSI-0002

Details and patient eligibility

About

Three primary reasons prolong hospital stays following unilateral knee arthroplasty. Pain is the primary reason followed by opioid drowsiness and nausea/vomiting side effects. Standard genicular radiofrequency ablation (t-RFA) has been effective pain management for non-operative knee pain associated with osteoarthritis. Additionally, cooled radiofrequency ablation (C-RFA), is now available for knee pain management. Both t-RFA and C-RFA offer minimally invasive, non-surgical, non-opioid pain relief options following surgery. The study will perform a double-blinded, parallel grouped, placebo-controlled randomized study to compare three pain management paradigms involving preoperative genicular C-RFA, t-RFA, and control placebo/sham. The aim of this study is to establish if C-RFA and t-RFA, offered preoperatively to patients undergoing unilateral knee arthroplasty, provide postoperative pain relief.

Full description

Total knee replacements are a leading orthopedic procedure in the United States totaling 600,000 in 2010, and are anticipated to grow to 3.48 million procedures by 2030. Three primary reasons prolong hospital stays following unilateral knee arthroplasty. Pain is the primary reason followed by opioid drowsiness and nausea/vomiting side effects. Reducing opioid usage and decreasing hospital length of stays are paramount in improving patient care during recovery and rehabilitation, subsequently reducing overall costs associated with total knee replacement. Standard genicular radiofrequency ablation (t-RFA) has been effective pain management for non-operative knee pain associated with osteoarthritis. Additionally, cooled radiofrequency ablation (C-RFA), which was previously used for spinal pain, is now available for knee pain management. C-RFA, compared to t-RFA, causes large volume spherical lesions and potentially reduces time and fluoroscopic exposure with direct placement techniques. However, both t-RFA and C-RFA offer a minimally invasive, non-surgical, non-opioid pain relief options following surgery. Preliminary reports involving 40 patients who underwent either C-RFA or t-RFA prior to unilateral knee arthroplasty by the investigator indicate both procedures improved postoperative pain assessments and decreased opioid/narcotic utilization. The study will perform a double-blinded, parallel grouped, placebo-controlled randomized study to compare three pain management paradigms involving preoperative C-RFA, t-RFA, and sham. The aim of this study is to establish if C-RFA and t-RFA, offered preoperatively to patients undergoing unilateral knee arthroplasty, provide postoperative pain relief, reduce hospital length of stays and decrease opioid utilization thereby improving patient outcomes and decreasing overall costs.

Enrollment: 150 estimated patients

Sex: All

Ages: 40+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Osteoarthritis of the knee where unilateral knee arthroplasty is indicated by radiograph, function decrease and/or pain indication and readiness to undergo t-RFA, C-RFA or sham treatment.

Exclusion criteria

□ • NO DAILY OPIOID CONSUMPTION 5 WEEKS PRIOR TO ENROLLMENT

• NO DOCUMENTED NARCOTIC DEPENDENCY OR RECREATIONAL DRUG USE
• NO TOBACCO USAGE WITHIN 2 MONTHS PRIOR TO SURGERY
• NO CONFOUNDING INFLAMMATORY ARTHRITIS DISEASES ARE PRESENT
• NO NEUROPATHY OR NEURO IMPAIRMENT PRESENT
• NO SIGNIFICANT ACUTE ILLNESS OR INFECTION
• NO OTHER CONFOUNDING CHRONIC PAIN
• NO INVESTIGATIONAL AGENT WITHIN 3 MONTHS PRIOR TO ENROLLMENT
• NO DIAGNOSED THROMBOPHILIA
• NO SEVERE CARDIAC OR PULMONARY COMPROMISE
• NO BLEEDING DISORDER(S)
• NO ALLERGIC REACTION TO LOCAL ANESTHESIA, STEROIDS, OR IMPLANT MATERIALS
• NO BREASTFEEDING
• NO PREGNANCY
• NO CONFOUNDING PSYCHIATRIC ILLNESSES
• NO CONFOUNDING MAJOR TRAUMA HARDWARE REMOVALS OR PRIOR TKA *NO CONTRAINDICATED BODY HABITUS TO BE DETERMINED BY A TREATMENT PROVIDER

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

---

150 participants in 3 patient groups

Standard Thermal radiofrequency ablation

Experimental group

Description:

Patients randomized to t-RFA will receive standard genicular thermal radiofrequency ablation at least 3 weeks prior to unilateral knee arthroplasty for postoperative pain management.

Treatment:

Procedure: t-RFA

Cooled radiofrequency ablation

Experimental group

Description:

Patients randomized to C-RFA will receive cooled genicular thermal radiofrequency ablation at least 3 weeks prior to unilateral knee arthroplasty for postoperative pain management.

Treatment:

Procedure: C-RFA

Control:Placebo Sham

Sham Comparator group

Description:

Patients randomized to control will receive simulated genicular thermal radiofrequency ablation at least 3 weeks prior to unilateral knee arthroplasty and receive the industry standard of care for unilateral knee arthroplasty pain management.

Treatment:

Procedure: Control