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CompletedNCT04390438Updated May 15, 2020

Efficacy of High and Low Intensity Percutaneous Electrolysis for the Treatment of Myofascial Pain Syndrome

An interventional study of Percutaneous Electrolysis and Dry needling in Knee Pain Chronic and Muscle Pain, sponsored by Universidad Francisco de Vitoria. Completed at 1 site in Spain. Open to participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2020-05-15.

Sponsored by Universidad Francisco de Vitoria · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

Muscle pain is frequently attributed to myofascial pain syndrome (MPS) in which myofascial trigger points (MTrP) are a characteristic feature. Dry needling is a frequent clinical practice to manage MPS but few evidence is published about percutaneous electrolysis effects for the treatment of MPS.

This is a randomized clinical trial with 3 parallel groups: 1) High intensity-short time percutaneous electrolysis; 2) Low intensity-long time percutaneous electrolysis; 3) dry needling control group.

Read the detailed description

The current study aimed to evaluate changes in rectus femurs active trigger points and patellar tendon pain pressure thresholds and subjective anterior knee pain perception after application of two percutaneous electrolysis methods using a same charge (high intensity and low intensity) compared to a dry needling group in patients with patellofemoral pain syndrome (PFPS)

Fifteen patients diagnosed with unilateral PFPS were divided in two experimental groups (high intensity percutaneous electrolysis and low intensity percutaneous electrolysis) and one active control group (dry needling. The duration of the study was 7 days with only one intervention. Pain pressure thresholds were assessed using an algometer before the intervention, immediately after the intervention and after 7 days and a Visual Analogue Scale was used before the treatment and after 7 days to rate the subjective anterior knee pain perception. Also a VAS was used to rate the pain perception during the intervention

02

Conditions studied

  • Knee Pain Chronic
  • Muscle Pain

Keywords

  • Patellofemoral pain syndrome
  • Electrolysis
  • Myofascial Pain Syndromes
  • Acupuncture
03

In context

Myofascial Pain Syndromes

1,136 studies on the registry are indexed under Myofascial Pain Syndromes; 137 are open to participants now.

This study's enrollment of 15 is below the median of 60 across 931 interventional studies indexed under Myofascial Pain Syndromes.

Browse Myofascial Pain Syndromes studies →

Lead sponsor

Universidad Francisco de Vitoria is the lead sponsor of 52 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Athletes with knee pain
  • Presence of at least one active Trigger point

Exclusion criteria

Exclusion Criteria:

  • Farmacologic treatment
  • Surgery or traumas
  • Skin alterations or infections
  • Prior 6 weeks DN nor PT treatment
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    High-Intensity short time percutaneous electrolysis

    Application of a 0,66uA galvanic current in the active TrP through a needle during 10 seconds. During the 20 seconds left necessary to blind the patient and the examiner, the needle was inside but with no electrical current

    Procedure: Percutaneous Electrolysis

  • Experimental
    Low-Intensity long time percutaneous electrolysis

    Application of a 0,22uA galvanic current in the active TrP through a needle during 30 seconds

    Procedure: Percutaneous Electrolysis

  • Active comparator
    Dry needling

    One acupuncture needle was placed in the active TrP to produce a local twitch response during 30 seconds

    Procedure: Dry needling

Interventions

  • ProcedurePercutaneous Electrolysis

    Needle emplacement with a galvanic electrical current

  • ProcedureDry needling

    Needle emplacement without electrical current nor substance

06

What researchers measure

Primary outcomes

  1. Pressure Pain Threshold (Trigger Point)

    Algometry (Wagner analogical algometer)

    Time frame: 7 days

  2. Pressure Pain Threshold (Patellar Tendon)

    Algometry (Wagner analogical algometer)

    Time frame: 7 days

Secondary outcomes

  1. Subjective pain perception

    Visual Analogue Scale

    Time frame: 7 days

07

Study locations

1 site
  • Camilo Jose Cela University
    Villanueva de la Cañada, Madrid 28692, Spain
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 15, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04390438
Lead sponsor
Universidad Francisco de Vitoria
Responsible party
Sponsor
First posted
May 15, 2020
Start date
Feb 17, 2020
Primary completion
Mar 30, 2020
Completion
Apr 27, 2020
Last update
May 15, 2020

Study contacts

Juan Antonio Valera-Calero, PT, Msc
principal investigator · Camilo Jose Cela University
Alberto Sanchez-Mayoral-Martín, PT
study director · Free professional practice

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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