AzTrials
AzTrials

OsteoarthritisNCT06744842

Effect of Genicular Nerve Block on Proprioception in Knee Osteoarthritis

A study testing genicular nerve block and Exercise in people with Osteoarthritis, run by Ankara City Hospital Bilkent at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The study was conducted to investigate the effect of genicular nerve block on pain, quality of life, and proprioception, which are already diminished due to the impact of osteoarthritis in individuals with knee osteoarthritis. Read more about this study

Who is it for?
Ages 55 to 75 years
Conditions the study is for
Osteoarthritis
What is being tested?
genicular nerve block and Exercise
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteTurkey (Türkiye)
Study dates
16 Dec 2024to 8 Apr 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of bilateral primary knee osteoarthritis according to ACR (American College of Rheumatology) criteria.
  • Age between 55 and 75 years.
  • Presence of knee osteoarthritis classified as Grade 2 or Grade 3 according to the Kellgren-Lawrence grading system on radiographs taken within the last year.
  • Knee pain lasting longer than 6 months.
  • Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, total score 48-96

Who cannot join

  • Severe knee trauma within the last 6 months.
  • History of surgical operation on the knee region.
  • Intra-articular steroid and/or hyaluronate injection into the knee joint within the last 6 months.
  • Physical therapy targeting the knee within the last 6 months.
  • Regular use of NSAIDs within the last 6 months.
  • Presence of acute synovitis.
Show all 10Show fewer
  • Neurological deficits in the lower extremity.
  • Presence of an inflammatory disease.
  • Poor general health condition (e.g., heart failure, advanced asthma, history of malignancy).
  • Any endocrine disorder that may cause polyneuropathy.

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Ankara Bilkent City Hospital

    Ankara, Çankaya, 06800

Other trials in Turkey (Türkiye)

About this study

Official title: Investigation of the Effect of Ultrasound-Guided Genicular Nerve Block on Knee Joint Proprioception in Patients With Chronic Knee Osteoarthritis

The study was conducted to investigate the effect of genicular nerve block on pain, quality of life, and proprioception, which are already diminished due to the impact of osteoarthritis in individuals with knee osteoarthritis.

Does genicular nerve block reduce pain and improve the quality of life in patients with knee osteoarthritis? Does genicular nerve block affect proprioception in patients with knee osteoarthritis?

Read the detailed description

Osteoarthritis (OA) is described as a degenerative joint disease characterized by cartilage erosion, osteophytes, subchondral sclerosis, and changes in the joint capsule, commonly observed in the elderly. Knee osteoarthritis is identified as the most prevalent form, with an increasing prevalence attributed to aging. It is recognized as a leading cause of disability, resulting in reduced quality of life and increased healthcare costs. Major risk factors include age, genetics, obesity, and muscle weakness. Current treatments focus on symptom management, with options including medication, physical therapy, and surgery.

Genicular nerve block is a minimally invasive procedure used to manage knee osteoarthritis pain by administering local anesthetics and corticosteroids near specific genicular nerves under ultrasound guidance. Temporary pain relief for up to three months has been reported, and the procedure is considered well-tolerated.

Proprioception is defined as the sense of joint and limb position, mediated by receptors located in muscles, tendons, and joints. Assessment can be performed through simple methods, such as evaluating the ability to recognize specific joint angles or positions during passive or active movement. Proprioceptive deficits are frequently observed in osteoarthritis, and a better understanding of these changes is suggested to guide treatment strategies.

Conditions
Osteoarthritis
Being tested
genicular nerve block, Exercise
Keywords
Genicular nerve block, Proprioception, Osteoarthritis
Medical subject headings
Osteoarthritis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • genicular nerve blockOther

    genicular nerve block

  • ExerciseOther

    isometric exercise

Study groups in NCT06744842
Study groupRoleWhat they receive
Genicular Nerve Block GroupExperimentalA nerve block will be performed on 22 patients using lidocaine injection under ultrasound guidance. After obtaining informed consent, the procedure will be carried out following sterilization, with 2% lidocaine hydrochloride injected at a total volume of 6 mL, distributed as 2 mL for each of the superomedial, superolateral, and inferomedial branches of the genicular nerve. After the injection, bleeding control will be performed, and the procedure will be concluded. All ultrasound-guided injections will be performed by a single physician, and the examination, investigations, treatment, and clinical evaluations of the patients will be conducted by the physicians participating in the study.
Receives: Other: genicular nerve block; Other: Exercise
Exercise groupActive comparatorExercise group: A home exercise program will be provided, including isometric strengthening exercises for the quadriceps muscles and stretching exercises for the hamstring muscles.
Receives: Other: Exercise

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proprioception

    Proprioception will be assessed using joint position sense. Joint position sense will be measured as the ability to actively replicate a joint position previously taught passively, referred to as Active Joint Position Sense (AJPS) (28). AJPS will be tested using a Continuous Passive Motion (CPM) device. The knee will be passively moved from 90° flexion toward extension at a slow pace. During this movement, the knee will be paused at 60°, 45°, and 30° flexion for 10 seconds each, and these angles will be taught to the participants. The knee will then be returned to 90° flexion, and the participants will be asked to actively replicate the taught angles.

    Participants will actively move their knees from the starting position to the taught angles of 60°, 45°, and 30° flexion to identify these positions. The actual taught angles and the angles determined by the participants will be recorded, and the differences between them will be calculated. Each angle will be tested in three trials, and

    Measured: Pre-treatment, 2 weeks, 1 month

Secondary outcomes (3)
  1. The Nottingham Health Profile (NHP)

    The Nottingham Health Profile (NHP) will be used to assess quality of life. The NHP is a general quality of life questionnaire that measures perceived health problems and their impact on normal daily activities. The questionnaire consists of 38 items and evaluates six dimensions of health status: energy (3 items), pain (8 items), emotional reactions (9 items), sleep (5 items), social isolation (5 items), and physical activity (8 items). Responses are given as "yes" or "no," and each section is scored on a scale from 0 to 100. A score of "0" indicates the best health status, while a score of "100" represents the worst health status.

    Measured: Pre-treatment, 2 weeks, 1 month

  2. Western Ontario and McMaster Universities Arthritis Index (WOMAC)

    Pain, joint stiffness, and functional status will be assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC). The WOMAC consists of 24 questions in total, divided into three subscales: pain (5 questions), joint stiffness (2 questions), and functional status (17 questions).

    Each question is scored on a scale from 1 to 5, with higher scores indicating poorer health and lower scores indicating better health.

    Measured: Pre-treatment, 2 weeks, 1 month

  3. Visual Analog Scale (VAS)

    Pain intensity will be assessed using the Visual Analog Scale (VAS) for evaluating current pain. Participants will be asked to rate their pain at rest, during movement, and at night. The scale ranges from 0 (no pain) to 10 (worst imaginable pain).

    Measured: Pre-treatment, 2 weeks, 1 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Dec 2024
  2. Study start16 Dec 2024
  3. Primary completion13 Feb 2026
  4. Study completion8 Apr 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06744842
Sponsor's protocol ID
ANKARA-PMR-BEYZA-01
Status last verified
Apr 2026
First submitted
24 Nov 2024
Last updated
9 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Tuzun EH, Eker L, Aytar A, Daskapan A, Bayramoglu M. Acceptability, reliability, validity and responsiveness of the Turkish version of WOMAC osteoarthritis index. Osteoarthritis Cartilage. 2005 Jan;13(1):28-33. doi: 10.1016/j.joca.2004.10.010.

    PubMed 15639634
  • Myles PS, Troedel S, Boquest M, Reeves M. The pain visual analog scale: is it linear or nonlinear? Anesth Analg. 1999 Dec;89(6):1517-20. doi: 10.1097/00000539-199912000-00038.

    PubMed 10589640
  • Krcmery V. [Antibiotics and antimycotics in oncology]. Vnitr Lek. 1991 Jul-Aug;37(7-8):695-702. Slovak.

    PubMed 1755212
  • Pavlou M, Stefoski D. Development of somatizing responses in multiple sclerosis. Psychother Psychosom. 1983;39(4):236-43. doi: 10.1159/000287745.

    PubMed 6635137
  • Cortez VS, Moraes WA, Taba JV, Condi A, Suzuki MO, Nascimento FSD, Pipek LZ, Mattos VC, Torsani MB, Meyer A, Hsing WT, Iuamoto LR. Comparing dextrose prolotherapy with other substances in knee osteoarthritis pain relief: A systematic review. Clinics (Sao Paulo). 2022 May 17;77:100037. doi: 10.1016/j.clinsp.2022.100037. eCollection 2022.

    PubMed 35594623
  • Shanahan EM, Robinson L, Lyne S, Woodman R, Cai F, Dissanayake K, Paddick K, Cheung G, Voyvodic F. Genicular Nerve Block for Pain Management in Patients With Knee Osteoarthritis: A Randomized Placebo-Controlled Trial. Arthritis Rheumatol. 2023 Feb;75(2):201-209. doi: 10.1002/art.42384. Epub 2022 Nov 11.

    PubMed 36369781
  • Porzig H, Baer M, Chanton C. Properties of beta-adrenoceptor sites in metabolizing and nonmetabolizing rat reticulocytes and in resealed reticulocyte ghosts. Naunyn Schmiedebergs Arch Pharmacol. 1981;317(4):286-93. doi: 10.1007/BF00501308. No abstract available.

    PubMed 6119626
  • Liu SH, Dube CE, Eaton CB, Driban JB, McAlindon TE, Lapane KL. Longterm Effectiveness of Intraarticular Injections on Patient-reported Symptoms in Knee Osteoarthritis. J Rheumatol. 2018 Aug;45(9):1316-1324. doi: 10.3899/jrheum.171385. Epub 2018 Jun 15.

    PubMed 29907665
  • Mendes JG, Natour J, Nunes-Tamashiro JC, Toffolo SR, Rosenfeld A, Furtado RNV. Comparison between intra-articular Botulinum toxin type A, corticosteroid, and saline in knee osteoarthritis: a randomized controlled trial. Clin Rehabil. 2019 Jun;33(6):1015-1026. doi: 10.1177/0269215519827996. Epub 2019 Feb 19.

    PubMed 30782000
  • Steultjens MP, Dekker J, van Baar ME, Oostendorp RA, Bijlsma JW. Range of joint motion and disability in patients with osteoarthritis of the knee or hip. Rheumatology (Oxford). 2000 Sep;39(9):955-61. doi: 10.1093/rheumatology/39.9.955.

    PubMed 10986299
  • Cowan SM, Bennell KL, Hodges PW, Crossley KM, McConnell J. Delayed onset of electromyographic activity of vastus medialis obliquus relative to vastus lateralis in subjects with patellofemoral pain syndrome. Arch Phys Med Rehabil. 2001 Feb;82(2):183-9. doi: 10.1053/apmr.2001.19022.

    PubMed 11239308
  • Brandt KD, Heilman DK, Slemenda C, Katz BP, Mazzuca S, Braunstein EM, Byrd D. A comparison of lower extremity muscle strength, obesity, and depression scores in elderly subjects with knee pain with and without radiographic evidence of knee osteoarthritis. J Rheumatol. 2000 Aug;27(8):1937-46.

    PubMed 10955336
  • Felson DT, Lawrence RC, Hochberg MC, McAlindon T, Dieppe PA, Minor MA, Blair SN, Berman BM, Fries JF, Weinberger M, Lorig KR, Jacobs JJ, Goldberg V. Osteoarthritis: new insights. Part 2: treatment approaches. Ann Intern Med. 2000 Nov 7;133(9):726-37. doi: 10.7326/0003-4819-133-9-200011070-00015.

    PubMed 11074906

Questions about this trial

What is this clinical trial studying?

A study testing genicular nerve block and Exercise in people with Osteoarthritis, run by Ankara City Hospital Bilkent at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proprioception (time frame: Pre-treatment, 2 weeks, 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06744842, which also lists 13 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Apr 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in