Ultrasound-guided Neuromodulation Percutaneous

NCT ID: NCT04590443

Last Updated: 2021-11-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-20

Study Completion Date

2021-07-10

Brief Summary

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Chronic low back pain (LBP) is one of the most familiar musculoskeletal pains and alone has been the main origin of years lived with disability for the past three decades. LBP is identified as a nonspecific, painful or mechanical situation in the lower back, buttocks, or hips. Although an underlying origin in chronic LBP has been proposed to be due to a multitude of factors, a muscle hip disbalance has been recognized5. A limited hip internal rotation range of motion (IR-ROM) and hip abductor weakness were found in patients with LBP symptoms7

In the field of Physiotherapy, ultrasound-guided Percutaneous Neuromodulation (PNM) is defined as the application through a needle with ultrasound guidance of an electrical current at low or medium frequency, seeking a sensitive and / or motor response of a peripheral nerve in some point of its trajectory, or of a muscle in a motor point, with a therapeutic objective. However, authors hypothesize that neuromodulation (especially the US-guided PNM technique) may be used to obtain more therapeutic effects, including pain relief.

The main aim of this study was to investigate the effect of hip muscle strengthening by a simple single-shot procedure with the US-guided PNM technique in people with LBP. A second purpose was to discover if the stimulation point in the sciatic nerve territory may influence the change of strength in these patients Sixty subjects will be recruited, which will be divided into 3 groups: group 1 to which PNM will be applied to the sciatic nerve in the gluteus region; group 2 to which PNM will be applied to the sciatic nerve in the middle of the thigh; and group 3 to which PNM will be applied to the sciatic nerve before popliteus region. The PNM intervention with NMP will consist in the single application of an asymmetric rectangular biphasic current (250 microseconds, 3 Hz) during 90 seconds

Detailed Description

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Conditions

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Low Back Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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NMP in Infrapiriformis level

Participants in this group received NMP of the sciatic nerve in the gluteus region

Group Type EXPERIMENTAL

NMP

Intervention Type OTHER

Participants received the percutaneous electrical stimulation intervention. Specifically, this consisted of the application of a square wave biphasic electrical current, with 3 Hz frequency and a 250µs pulse width, at the maximal tolerable intensity, to cause an tolerable muscle contraction. The application was 10 stimulations of 10 seconds, with 10 seconds at rest between stimulations. A trained physiotherapist performed the PNM intervention.

NMP in middle thigh level

Participants in this group received NMP of the sciatic nerve in the middle of the thigh

Group Type EXPERIMENTAL

NMP

Intervention Type OTHER

Participants received the percutaneous electrical stimulation intervention. Specifically, this consisted of the application of a square wave biphasic electrical current, with 3 Hz frequency and a 250µs pulse width, at the maximal tolerable intensity, to cause an tolerable muscle contraction. The application was 10 stimulations of 10 seconds, with 10 seconds at rest between stimulations. A trained physiotherapist performed the PNM intervention.

NMP in middle distal level

Participants in this group received NMP of the sciatic nerve before popliteus region

Group Type EXPERIMENTAL

NMP

Intervention Type OTHER

Participants received the percutaneous electrical stimulation intervention. Specifically, this consisted of the application of a square wave biphasic electrical current, with 3 Hz frequency and a 250µs pulse width, at the maximal tolerable intensity, to cause an tolerable muscle contraction. The application was 10 stimulations of 10 seconds, with 10 seconds at rest between stimulations. A trained physiotherapist performed the PNM intervention.

Interventions

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NMP

Participants received the percutaneous electrical stimulation intervention. Specifically, this consisted of the application of a square wave biphasic electrical current, with 3 Hz frequency and a 250µs pulse width, at the maximal tolerable intensity, to cause an tolerable muscle contraction. The application was 10 stimulations of 10 seconds, with 10 seconds at rest between stimulations. A trained physiotherapist performed the PNM intervention.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Lower Back Pain
* Having no other therapy

Exclusion Criteria

* Other pathology (discal hernia, injured limbs, neurological pathology)
* Belenophobia
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Seville

OTHER

Sponsor Role lead

Responsible Party

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Blanca de la Cruz Torres

Director

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Blanca de la Cruz Torres

Seville, , Spain

Site Status

Countries

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Spain

Other Identifiers

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Place-NMP

Identifier Type: -

Identifier Source: org_study_id