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Two nerve treatments for long-lasting knee osteoarthritis pain compared

Compares two nerve procedures for pain and movement in people with knee osteoarthritis.

Key facts

Who runs it
University Medical Centre Ljubljana
Where
Slovenia1 site in 1 countryChoose a country to see its sites
Trial code
Registry title
Pulsed Radiofrequency Therapy vs Canal Adductor Blockade in Knee Osteoarthritis
Status
Recruiting
People taking part
128 people, planned
Started
9 Oct 2024
Planned end
Jun 2025
Type of study
Observational, 2 groups
Treatments tested
  • Canal adductor blockade
  • Canal adductor pulsed radio-frequency therapy
Record updated
9 December 2024

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults over 45 with knee osteoarthritis (wear-and-tear arthritis of the knee) and long-lasting knee pain. It compares two nerve treatments for knee pain.

Age
Older than 45 years, up to 100 Years
Sex
All sexes can join
Disease stage
Knee osteoarthritis confirmed by an orthopedic examination, K-L grade 3 or 4 (advanced joint damage on X-ray)
Earlier treatment
People who have taken opioid painkillers for more than 3 months at more than 30 mg of daily oral morphine equivalents cannot join

Main reasons for not taking part

  • Heart, liver or kidney conditions that the investigator thinks would affect taking part
  • Severe nerve conditions, psychiatric illnesses, or severe blood disorders or clotting problems
  • Allergy to any of the drugs used in the study
  • Infection or cancer at the injection site, or any active infection in the body
  • Implanted electronic devices, such as spinal cord stimulators or cardiac pacemakers

The registry criteria, word for word

Show all 14 criteriaShow less

Who can take part

  • Diagnose of the Knee osteoarthritis confirmed by orthopedic examination
  • K-L grades 3 and 4
  • A sufficient level of education to understand study procedures
  • Be able to communicate with site personnel
  • Age >45 years

Who cannot take part

  • Any cardiovascular, hepatic, or renal conditions that would compromise participation, in the opinion of the investigator
  • Severe neurologic conditions interfere with a knee condition
  • Coexisting severe hematological disorder or deranged coagulation parameters
  • Psychiatric illnesses
  • Allergy to any of the drugs used in the study
  • Infection or malignancy at the site of the block
  • Any active systemic infection
  • Implanted electronic devices like spinal cord stimulators, cardiac pacemakers or similar
  • Narcotic dependent (opioid intake of more than 3 months and more than 30 mg of daily oral morphine equivalents)

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 45 and 100 years old?

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

This study is intended to prove the efficacy and safety of ultrasound-guided pulsed radiofrequency therapy on adductor canal nerves by patients with Knee osteoarthritis.

The 2 groups in the trial

  • Canal adductor blockade

    After surgical cleaning of the anteromedial thigh, all participants in this group received single shot ultrasound guided canal adductor blockade with 14 ml 0,25% levobupivacaine and 100 mcg clonidine mixed in the same syringe. Investigators previously scanned the adductor canal and chose the middle of the canal as the entry point of the 10 cm echogenic ultrasound needle. After the blockade, all participants were monitored in our ambulance for the next hour.

  • Pulsed radiofrequency therapy

    After surgical cleaning of the anteromedial thigh, all participants in this group received ultrasound-guided pulsed radiofrequency therapy. Investigators previously scanned the adductor canal and chose the middle of the canal as the entry point of the RF 10 cm needle with a 1 cm free tip. After sensory and motor checking all patients have gotten 6 minutes of therapy divided into 3 sequences of 2 minutes of 50 V current and 42. Before starting the PRF therapy all participants have gotten 2 ml 0,25% levobupivacaine through the needle for preventing discomfort during the procedure. After the treatment, all participants were monitored in our ambulance for the next hour.

    Treatment: Canal adductor pulsed radio-frequency therapy

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Comparison of the Effectiveness of Pulsed Radiofrequency Therapy and Canal Adductor Blockade for Chronic Pain and Functioning in Knee Osteoarthritis
Plain-language title
Two nerve treatments for long-lasting knee osteoarthritis pain comparedGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 14 November 2026.
Fit questions
Built from NCT05962463, who can take part
Record updated
9 December 2024