NCT02890485 · Ohio State University
The Effects of Dry Needling on Patients With Knee Pain
What this study is about
This study is testing the effectiveness of "dry needling" for pain management and on muscle strength and leg function for those with knee pain. Dry needling consists of small, monofilament needles that are administered directly into the tissue and manipulated to make the muscle relax for pain relief.
View original scientific description
This study is testing the effectiveness of "dry needling" for pain management and on muscle strength and leg function for those with knee pain. Dry needling consists of small, monofilament needles that are administered directly into the tissue and manipulated to make the muscle relax for pain relief. This technique is used to treat dysfunctions in skeletal muscle and connective tissue to help diminish pain, reduce impairments of body structure and restore function.
Interventions
DEVICE
Dry Needling
Dry needling consists of small, monofilament needles that are administered directly into the tissue and manipulated to make the muscle relax for pain relief. This technique is used to treat dysfunctions in skeletal muscle and connective tissue to help diminish pain, reduce impairments of body structure and restore function. Dry needling will be performed in the gluteal or the quadriceps muscle groups depending upon group randomization.
DEVICE
Sham Dry Needling
The same overall procedures will be used as in the "true" dry needling groups and applied to the same muscle groups (gluteal or quadriceps) depending upon ground randomization. Sham dry needling will be performed using a commercially available sham needling system commonly.This set-up utilizes a blunt tipped needle. When the sham needle is pressed downward, the barrel of the needle retracts into the handle, giving the appearance of insertion of the needle through the skin. This also creates pressure on the subject's skin, increasing the sensation of dry needling. Patients will not be allowed to observe the areas being needled or sham needled.
OTHER
Physical Therapy
Physical Therapy and exercise as determined by the examining clinician based on the patients specific impairments and functional limitations. All subjects enrolled in this study will receive an initial physical therapy (PT) evaluation and then 2 additional PT sessions a week a part. Interventions and prescribed home exercises will be specific to the patients' primary individual impairments as determined during the initial PT evaluation. These interventions reflect current evidence, but will not be restrictive to specific exercises; prescribed exercises will be deemed appropriate based on the treating PTs' examination, evaluation, and identification of each patients' primary deficits, impairments, functional limitations, and current literature.
Primary outcome measures
Change from Baseline Anterior Knee Pain Scale (AKPS) score to 3 weeks
Time frame: Baseline and Post testing (week 3)
The AKPS is commonly used to evaluate function in patients with PFPS. It is a 13-item questionnaire with a maximum score of 100. Higher scores are indicative of better function. The minimal detectable change (MDC) and the minimal clinically important difference (MCID) of the AKPS has been reported to be 10 and 13 points respectively and has high test-retest reliability (ICC: 0.81 to 0.95). The standard error of measurement is 3 and has been shown to be valid (0.92).
Change from Baseline Numeric Pain Rating Scale (NPRS) score to 3 weeks
Time frame: Baseline and Post testing (week 3)
Pain will be measured using the numeric pain rating scale (NPRS). Patients will be asked to rate their pain on 11-point (0-10) scale with 0 being no pain and 10 being extreme pain. The NPRS is a common measure of pain in patients with PFPS and has been shown to be reliable and responsive (minimal clinically important difference = 2 points).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 18-40 years-of-age
- Referred for physical therapy
- Presence of anterior knee pain around the patella during ascending/descending stairs, squatting, and/or running for at least 3 months.
Exclusion criteria
- Unable to provide consent
- Bilateral patellofemoral pain syndrome
- Received previous dry needling treatments
- History of pain less than 3 months
- Imaging demonstrating the presence of confounding internal abnormality (e.g. chondral defects, ligamentous injury, and/or meniscal pathology),
- Patellar instability
- Presence of a neurological condition that would affect movement
- Contraindications to dry needling techniques (e.g. a history of bleeding disorders, phobia of needles, an active cancer diagnosis, and presence of other systemic illness such as fever or signs of infection)
- Actively receiving treatment for knee pain outside of the current study protocol while enrolled in the study;
- received active and supervised PT treatment for knee pain within the last 4 weeks;
- history of knee surgery less than 6 months ago
- history of surgical correction of the patellofemoral complex (e.g. MPFL reconstruction, patellar realignment surgery, etc)
Where
- Columbus, Ohio
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Feb 25, 2026 · Source of record for eligibility and locations