Percutaneous freezing of sensory nerves prior to total knee arthroplasty.
Vinod Dasa, Gabriel Lensing, Miles Parsons...
https://pubmed.ncbi.nlm.nih.gov/26875052Actively Recruiting
Led by Attikon Hospital · Updated on 2026-02-20
100
Participants Needed
1
Research Sites
13 weeks
Total Duration
Researchers are studying adults undergoing total knee arthroplasty (TKA) to see if performing percutaneous cryoneurolysis on the genicular nerves before surgery can reduce pain and improve physical function. The study compares patients who receive this nerve-freezing procedure at least 24 hours before TKA with those who have standard TKA without cryoneurolysis. The goal is to assess if the intervention helps with long-term recovery and quality of life. Participants in the intervention group will undergo CT-guided cryoneurolysis targeting the upper lateral, upper medial, and lower medial genicular nerves using 17-gauge cryoprobes. The procedure involves freezing the nerves in cycles of 5 minutes freezing, 4 minutes passive thawing, and another 5 minutes freezing. Imaging guidance confirms probe placement and checks for immediate complications. The control group will receive standard TKA without the nerve-freezing treatment. During the study, participants will be monitored for changes in pain severity one month after surgery as the primary outcome. Secondary measures include knee function and osteoarthritis symptoms at 3 and 6 months postoperatively, as well as safety assessments at 6 months. Participants will be followed and evaluated over six months to track recovery, physical function, and any adverse effects related to the procedures.
CONDITIONS
Cryoneurolysis Prior to Total Knee Arthroplasty (CRYO-TKA Trial)
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - 1 day
Participants in the intervention group receive CT-guided cryoneurolysis targeting specific genicular nerves at least 24 hours before total knee arthroplasty (TKA).
1 visit (in-person) prior to surgery
Duration - 1 day
Participants undergo standard total knee arthroplasty surgery.
1 visit (in-person) for surgery
Duration - 6 months
Participants are followed after surgery to assess pain and knee function over time.
Visits at 1 month, 3 months, and 6 months postoperatively
Total: 1 location
1
Attikon University General Hospital
Athens, Greece, 12462
Actively Recruiting
D
Dimitrios Filippiadis, MD, PhD, EBIR, MSc
V
Vasileios Balomenos, MD, MSc, PhD(c)
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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