Skip to main content
OpenTrials
Completed

NCT Number: NCT00694538

Efficacy of Interferential Laser Therapy in Shoulder Pain

The purpose of this study is to determine the advantages of the interferential laser therapy in shoulder pain reduction compared with the conventional low level laser therapy modality.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Shoulder Musculoskeletal Disorders

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Hospital Ramon y Cajal

Madrid, 28034, Spain

About this study

The spatiotemporal superposition of two independent and opposite beams of laser generates a constructive interference pattern that increases the therapeutic effects in the irradiated tissue. Patients diagnosed of shoulder pain from different musculoskeletal disorders will received conventional or interferential laser therapy. This is a comparative, randomized and double - blind clinical study. Two identical equipments of near infrared laser therapy will be used. Number of sessions: 15. Frequency of the sessions: daily. Irradiation technique: manual, contact and punctual.Pain will be evaluated by visual analog scale (VAS) at rest and during analytical shoulder movements (abduction, adduction, internal rotation, external rotation, flexion, extension) and by means of a pain and disability index (SPADI). Evaluations will take place at pre and post treatment.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Acute or chronic pain from musculoskeletal origin
  • Age between 18 and 70 years

Exclusion criteria

  • Brachial plexus palsy
  • Neurological diseases
  • Pacemakers
  • Shoulder pain from cervical pathology
  • Osteosynthesis material
  • Fibromyalgia

Treatment and study plan

Interferential Laser Therapy

Device

Two GaAlAs laser (810 nm, 100mW)were used. In the interferential laser treatment, two probes were simultaneously applied. In the conventional laser group, only one probe was switched on. Laser was applied at five points over the pain area. The laser emission mode was continuous with an energy dose of 6 joules per point and session, a power density of 1.09 w/cm2 and an irradiation time per point of 60 s. The average output power was 100 mW and the total energy dose delivered in a patient session was 30 J. Every treatment was along 15 sessions. Hence, the accumulated energy delivered on the whole was 450 Joules for the conventional group of patients (using one beam) and 900 Joules for the interferential one (using two beams).

Other names: Interference Laser Therapy., Device Brand Name: Laser Sys. Stim 540(Mettler Electronics)., SN: 105XLS147 (first laser) and 105XLS148 (second laser).

Primary outcomes

  1. Pain will be evaluated by visual analog scale (VAS) at rest and during analytical shoulder movements.

    Time frame: Five minutes

Secondary outcomes

  1. Shoulder Pain Disability Index (SPADI)

    Time frame: ten minutes

Sponsors and collaborators

Lead sponsor

Hospital Universitario Ramon y Cajal

Other

Registry information

Official study title

Efficacy of Interferential Laser Therapy in Pain Reduction in Shoulder Musculoskeletal Pathologies.

Acronym: PI070046

Important dates

Study start
2008
Primary completion
2008
Study completion
2009
First posted
Jun 10, 2008
Registry last updated
Nov 13, 2009

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.