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Ultrasound-Guided Percutaneous Electrical Stimulation on Radial Nerve in Patients With Lateral Epicondylalgia

Effectiveness of Ultrasound-Guided Percutaneous Electrical Stimulation on Radial Nerve With Exercises in Patients With Lateral Epicondylalgia

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04442321
Enrollment
60
Registered
2020-06-22
Start date
2020-09-01
Completion date
2024-12-30
Last updated
2025-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tennis Elbow

Keywords

Lateral Epicondylalgia, Lateral Epicondylitis, Lateral Elbow Tendinopathy, Lateral Elbow Pain, Percutaneous Electrical Nerve Stimulation

Brief summary

Lateral epicondylalgia is a common musculoskeletal condition that approximately affects 1-3% of the general population. Several authors have found greater mechanical pain sensitivity in the radial nerve when compared with healthy subjects. Radial tunnel syndrome exhibits a similar clinical presentation to lateral epicondylalgia. Percutaneous electrical stimulation has shown reduce pain in several conditions. Percutaneous electrical stimulation on the radial nerve could cause an important relief in lateral epicondylalgia. Hypothesis: Percutaneous electrical stimulation on radial nerve plus exercise therapy in patients with lateral epicondylalgia is better than sham percutaneous electrical stimulation plus exercise.

Detailed description

Randomized, double-blind, placebo controlled clinical trial, using Percutaneous Electrical Nerve Stimulation (PENS). PENS is technique to provide a transcutaneous electrical nerve stimulation current throughout needling filaments place close to the nerve. Study Aims: Aim #1: The primary aim of the study is to compare the effect of the short, mid and long-term of PENS on intensity of pain as measured by numeric pain rating scale and disability as measured by Patient Rated Tennis Elbow Evaluation (PRTEE) in patients with lateral epicondylalgia with random assignment to two treatments: PENS plus exercise program or Sham PENS plus exercise program. Aim #2: The secondary aim of the study is to compare the effect of the short, medium and long-term of PENS on disability as measured by DASH questionnaire, and psychological factors (fear and avoidance and catastrophism) and Global Rating of Change (GRoC) in patients with lateral epicondylalgia with random assignment to two treatments: PENS plus exercise program or Sham PENS plus exercise program.

Interventions

The technique will be performed ultrasound-guided on the radial nerve, the places of the needle's insertions will be the following: * Needle will be placed at under the lateral intermuscular septum between the triceps brachii and brachialis, approximately 10cm superior to the lateral epicondyle * Needle will be placed at the upper third of the forearm on the posterior interosseous nerve after passing the arcade of Froshe The percutaneous electrical stimulation will be realized with a transcutaneous electric nerve stimulation (TENS) current: * TENS Frequency 2 Hz * TENS Pulse width - 250 microseconds * Duration - 30 minutes. * TENS Intensity - Increased at an intensity of visible motor response of the innervated musculature and maximal tolerable intensity. * Administration - One per week Self-management loaded exercises prescribed by a physical therapist, two times per week.

The technique will be performed ultrasound-guided on the radial nerve, the places of the needle's insertions will be the following: * Needle will be placed at under the lateral intermuscular septum between the triceps brachii and brachialis, approximately 10cm superior to the lateral epicondyle * Needle will be placed at the upper third of the forearm on the posterior interosseous nerve after passing the arcade of Froshe The electrical current will not be working, and the needles will be placed during 30 minutes: \- Administration - One per week Self-management loaded exercises prescribed by a physical therapist, two times per week.

Sponsors

Universidad Complutense de Madrid
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Lateral epicondylalgia symptoms confirmed with at least 2 of the 4 following test: 1. pain during palpation of lateral epicondyle 2. pain on resisted wrist extension 3. pain on resisted middle finger extension 4. pain during hand-grip.

Exclusion criteria

* History of fractures, luxations, surgery and/or musculoskeletal disorders in upper limb. * Neurological disorders, inflammatory and/or degenerative diseases. * Having received as treatment techniques that involve needles on the previous 6 months to study enrollment, or having received percutaneous electrical stimulation as a treatment before. * Cervical pathology, fibromyalgia, unstable cardiovascular diseases, pregnant women or under suspect of pregnancy. * Contraindications of needle's insertions: anticoagulant therapy, needle phobia, diabetes, hypothyroidism, lymphoedema, muscular diseases). * Contraindications of electrical current application.

Design outcomes

Primary

MeasureTime frameDescription
Changes in Elbow Pain Intensity between baseline and follow-up periodsBaseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the interventionPain intensity measured with a 10 (0 - No pain - 10 The worst pain) numeric rating scale

Secondary

MeasureTime frameDescription
Changes in Elbow Related-Disability between baseline and follow-up periodsBaseline,1 week post-intervention, and 1, 3, 6 and 12 months after the interventionMeasured with Patient Rated Tennis Elbow Evaluation (PRTEE). It is a 15-item questionnaire designed to measure forearm pain and disability in patients
Changes in Upper Extremity Related-Disability between baseline and follow-up periodBaseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the interventionMeasured with Disabilities of the Arm, Shoulder and Hand (DASH) Questionnaire. It includes 30 items assessing (1) degree of difficulty during the preceding week in performing several physical activities because of problems in a upper extremity (21 items), (2) severity of each of the symptoms of pain, activity related pain, tingling, weakness, and stiffness (5 items), and (3) the problem's effect on social activities, work, and sleep and its psychological impact (4 items). Each item is answered on a 5-point scale ranging from 1 (no difficulty to perform, no symptom, or no impact) to 5 (unable to do, very severe symptom, or high impact). The responses to the 30 items are summed to form a raw score that is then converted to a scale from 0 to 100 with a formula. A higher score reflects greater disability.
Changes in Kinesiophobia between baseline and follow-up periodsBaseline,1 week post-intervention, and 1, 3, 6 and 12 months after the interventionTampa Scale for Kinesiophobia. To assess the fear of movement and pain-related fear. The 11 items are scored 1-4, with total scores ranging from 11 to 44. The addition of all the points obtained from each of the items results in the level of kinesiophobia, with higher scores indicating greater perceived kinesiophobia
Changes in Pain Catastrophizing between baseline and follow-up periodsBaseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the interventionPain Catastrophizing Scale (PCS). This tool is a 13-item questionnaire designed to measure the three components of pain-related catastrophizing: rumination, magnification, and helplessness, resulting in a unique score. Each item is responded to on a 5-point scale (0 not at all, 4 all the time) relating the degree to which the individual experiences a thought or feeling of a painful situation.
Changes in Self-perceived Improvement between baseline and follow-up periodsBaseline,1 week post-intervention, and 1, 3, 6 and 12 months after the interventionGlobal ratings on changes in regards to their level of elbow well-being since the treatment on a 15-point self-report scale (from -7, very much worse, to 7, completely recover)

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026