Effect of Dry Needling on Gluteus Medius Contraction in Greater Trochanteric Pain Syndrome: a Pilot RCT Protocol

N/ANot Yet RecruitingNCT06584500

University of Alcala40 enrolled

Overview

Grater trochanteric pain syndrome is a hip related pathology that causes lateral hip pain and lack of strength in abductor muscles such as the gluteus medius, which hinders functional activities and daily life, such as standing, walking, sleeping on the affected side... Lack of strength and eccentric control of the gluteus medius may be related to the apparition of myofascial trigger points that are susceptible to treatment with dry needling. In this study, two groups of patients with greater trochanteric pain syndrome will be treated with dry needling, some of them with real dry needling, and others with sham dry needling. Ultrasound will be used to assess whether real dry needling in the pelvitrochanteric musculature improves the potential contraction of the gluteus medius, in relation to a baseline measurement and to sham dry needling. This study is a randomised clinical trial protocol, pilot study, so there will be no previous references for the sample of both study groups. 3 dry needling interventions will be performed in 3 consecutive weeks, leaving 1 week between each intervention. Data will be collected for the variables to be investigated (potential contraction, pain, function, strength…) before the first intervention, after each intervention, 1 month after the last intervention and at 3 months.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

Conditions

Greater Trocantheric Pain Syndrome

Interventions

Dry needlingOTHER

Dry needling will be performed on the pelvitrochanteric musculature, targeting those muscles where the patient reports mechanical hyperalgesia points upon palpation that reproduce familiar and recognizable pain. No more than 3 different muscles will be treated, and no more than 2 needles will be used per muscle to reduce irritability. The Gluteus Medius muscle will be needled in all patients, and the Gluteus Minimus, Tensor Fasciae Latae (TFL), Piriformis, and obturator muscles will also be examined. Dry needling will be performed using monofilament needles of different sizes, 0.30mm x 7.5mm, 6mm, and 4mm (AGUPUNT, APS®), depending on the muscle being treated.\" During the dry needling procedure, an attempt will be made to provoke a local twitch response (LTR). Once achieved, the needle will be manipulated with rapid in-and-out movements in different directions until 4 to 6 LTRs are obtained, or if the participant verbally requests the intervention to stop.

Sham Dry NeedlingOTHER

The intervention protocol for sham dry needlig will be just as to the real dry needling procedure, but instead of inserting the needle into the muscle, the needle is manipulated to touch the skin without penetrating it. This may involve the use of retractable needles or simply making contact with the skin

Eligibility

Sex: ALLMin age: 20 YearsMax age: 75 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Lateral hip pain lasting more than 3 months. * Greater trochanteric pain syndrome compatible with changes on MRI. * Clinical examination correlation: one of the following tests must be positive: FADER test, FABER test, hip adduction (ADD) test in side-lying position (DL), isometric contraction test in the ADD position, or single-leg stance test for 30 seconds. * Pain/sensitization upon palpation of the trochanter. Exclusion Criteria: * Radicular pain due to lumbar pathology. * Osteoarthritis. * Pelvic pathology that could refer pain to the hip. * Needle phobia. * Hip injection performed less than 6 months ago. * Dry needling performed less than 1 month ago. * Surgery or pathology of the lower limb that prevents single-leg support. * Systemic diseases that could interfere with the pathological process.

Outcomes

Primary Outcomes

Potential Contraction with M-Mode

The primary variable in this study will measure the potential contraction of the gluteus medius. This variable will be assessed using a Sonoscape E2 ultrasound machine with a 5 cm linear probe and the highest scanning speed. The probe will be positioned at the midpoint of the line connecting the anterior and posterior superior iliac spines. In longitudinal scanning, M-mode will be placed cranially to the hip joint capsule. Thickness will be measured from the inner surface of the fascial borders, with the unit of measurement in millimeters (mm). The contraction potential will be the difference between the thickness of the gluteus medius at rest and the thickness at 80% of the maximum voluntary isometric contraction.