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

Universidad Complutense de Madrid

Status: Completed

Conditions: Tennis Elbow

Treatments: Other: Sham PENS plus exercise; Other: PENS plus exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT04442321

19/043

Details and patient eligibility

About

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.

Full 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.

Enrollment: 60 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

---

60 participants in 2 patient groups

PENS plus exercise group

Active Comparator group

Description:

Experimental: PENS plus exercise group 4-week intervention program with 1 weekly treatment session, one of percutaneous electrical stimulation. In addition, self-management loaded exercise, prescribed by the physical therapist but completed by the patient independently . It involved isometric exercises, eccentric exercise, eccentric-concentric with weight or resistive therapeutic band.

Treatment:

Other: PENS plus exercise

Sham PENS plus exercise group

Sham Comparator group

Description:

Sham Comparator: Sham PENS plus exercise group 4-week intervention program with 1 weekly treatment session, one of percutaneous electrical stimulation. In addition, self-management loaded exercise, prescribed by the physical therapist but completed by the patient independently. It involved isometric exercises, eccentric exercise, eccentric-concentric with weight or resistive therapeutic band.

Treatment:

Other: Sham PENS plus exercise