Effect of Percutaneous Needle Electrolysis (PNE) on Tendinopathy

NCT ID: NCT05370092

Last Updated: 2025-11-25

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

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-20

Study Completion Date

2025-06-30

Brief Summary

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The aim of this study is to test the efficacy of percutaneous electrolysis in posterior tibial tendinopathies. The posterior tibial tendon injury is one of the most frequent pathologies in the lower extremities, and therefore a correct study and evaluation of it is necessary. This study aims to compare the therapeutic effect of percutaneous electrolysis comparing a control group with an experimental group. To evaluate functionality, pain and its ultrasound pattern before and after treatment, in order to assess the efficacy of the treatment.

Detailed Description

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A single-blind, longitudinal, randomised, controlled, single-blind, longitudinal, randomised, controlled clinical trial will be conducted. First, the participant will receive a FOOT AND ANKLE ABILITY (FAAM) survey, along with a numerical pain scale, both of which must be completed. Next, an ultrasound study of the foot will be performed, focusing on pain in the inner ankle, to check for possible pathology in the posterior tibial tendon. Finally, the physiotherapist's intervention will be carried out to check the effectiveness of the technique, which may cause some pain, and finally, the numerical pain scale will be passed again. Four sessions will be carried out in four different weeks, always using the same day of the week for the intervention and following the same steps as above. The purpose of this study is to test the efficacy of PD in posterior tibial tendinopathy and whether PD is therefore a safe technique for this type of intervention. All patients will sign an informed consent form and will be informed about the study beforehand.

Conditions

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Posterior Tibial Tendon Dysfunction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Control group

Patients assigned to this group will receive a session of manual therapy and therapeutic exercise. The manual therapy (TM) treatment for tendinopathies is mainly focused on soft tissue mobilization and deep transverse friction massage (Cyriax).

The therapeutic exercise session participants will perform 2 exercises for 4 weeks 3 days per week. The first exercise they will perform will be the Short-Foot Exercise holding the position 5 seconds isometrically. The second exercise will be plantar flexion of the ankle with adduction of the foot and inversion with elastic band in its concentric and eccentric phase. Each exercise will be performed in 3 series of 15 repetitions, with 1 minute rest between series, the exercise session will follow the TM and will last approximately 15-20 minutes.

Group Type ACTIVE_COMPARATOR

Therapeutic exercise

Intervention Type OTHER

The first exercise they will perform will be the Short-Foot Exercise holding the position 5 seconds isometrically. The second exercise will be plantar flexion of the ankle with adduction of the foot and inversion with elastic band in its concentric and eccentric phase

Manual therapy

Intervention Type OTHER

The manual therapy (TM) treatment for tendinopathies is mainly focused on soft tissue mobilization and deep transverse friction massage (Cyriax).

Intervention group

Participants in this group will receive 4 sessions (once a week during their respective treatment session) of percutaneous electrolysis guided by MUSCULO-SKELETAL ECOGRAPHY, by a physiotherapist with extensive clinical experience in this therapeutic approach. The technique will be applied using a specifically developed and medically certified device (EPI Advanced Medicine®, Barcelona, Spain. EPI®). The galvanic current will be applied using acupuncture needles. In the present study, a 0.30\*25 mm needle (Agupunt, Barcelona, Spain) will be used, with an intensity of 2 mA for a total of 3-5 seconds and 3-5 impacts on the liquid content (TTP tenosynovitis) and 2 mA for a total of 3 seconds and 2-3 impacts if in the tendon (intrasubstance). The technique shall be applied under ultrasound guidance.

The needle shall be introduced at an angle of 80° in a short-axis cross-section to the skin, with the tip of the needle directed towards the posterior tibial tendon.

Group Type EXPERIMENTAL

Percutaneous needle electrolysis

Intervention Type OTHER

Electrolysis is the process by which water (H2O) and sodium chloride (NaCl) molecules, which are present in the biological tissues and body compartments of our organism, are organically broken down into their constituent chemical elements, regrouping to create entirely new substances such as sodium hydroxide (NaOH), hydrogen gas (H2) and chlorine gas (Cl2). This process occurs thanks to the passage of a flow of direct electric current, also known as galvanic current, which is a totally athermal process. The passage of this current allows a local inflammatory response to occur (increase in lymphocytes and macrophages) as well as an increase in vasodilatation, inducing phagocytosis and biological stimulation of tendon repair.

Therapeutic exercise

Intervention Type OTHER

The first exercise they will perform will be the Short-Foot Exercise holding the position 5 seconds isometrically. The second exercise will be plantar flexion of the ankle with adduction of the foot and inversion with elastic band in its concentric and eccentric phase

Manual therapy

Intervention Type OTHER

The manual therapy (TM) treatment for tendinopathies is mainly focused on soft tissue mobilization and deep transverse friction massage (Cyriax).

Interventions

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Percutaneous needle electrolysis

Electrolysis is the process by which water (H2O) and sodium chloride (NaCl) molecules, which are present in the biological tissues and body compartments of our organism, are organically broken down into their constituent chemical elements, regrouping to create entirely new substances such as sodium hydroxide (NaOH), hydrogen gas (H2) and chlorine gas (Cl2). This process occurs thanks to the passage of a flow of direct electric current, also known as galvanic current, which is a totally athermal process. The passage of this current allows a local inflammatory response to occur (increase in lymphocytes and macrophages) as well as an increase in vasodilatation, inducing phagocytosis and biological stimulation of tendon repair.

Intervention Type OTHER

Therapeutic exercise

The first exercise they will perform will be the Short-Foot Exercise holding the position 5 seconds isometrically. The second exercise will be plantar flexion of the ankle with adduction of the foot and inversion with elastic band in its concentric and eccentric phase

Intervention Type OTHER

Manual therapy

The manual therapy (TM) treatment for tendinopathies is mainly focused on soft tissue mobilization and deep transverse friction massage (Cyriax).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Subjects over 18 years of age
* Mild inflammation, swelling and/or tenderness posterior to the medial malleolus
* Pain posterior and/or superior to the medial malleolus, aggravated by activity
* Pain present for at least 3 months
* One or more signs of flexible flatfoot deformity, including excessive valgus deformity of the hindfoot during weight bearing and/or excessive foot abduction (many toes sign).
* Pain when performing the Hell Rise Test or performed incorrectly.
* Signs of tenosynovitis on ultrasound examination.

Exclusion Criteria

* Previous surgery on the affected foot, leg or knee.
* Disabling osteoarthritis of the knee on the affected side.
* Fixed hindfoot deformities.
* Recurrent ankle sprains on the affected side.
* Ligament tears or bony abnormalities of the affected foot.
* A physical or medical condition that contraindicates the testing protocol.
* Pregnancy.
* FCD or FLH tendinopathy.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Universidad Rey Juan Carlos

OTHER

Sponsor Role lead

Responsible Party

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Antonio Rejas Fenández

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Antonio Rejas Fernández

Role: PRINCIPAL_INVESTIGATOR

Universidad Rey Juan Carlos

Jose Luis Arias Buría

Role: STUDY_DIRECTOR

Universidad Rey Juan Carlos

Ana Isabel De La Llave Rincón

Role: STUDY_DIRECTOR

Universidad Rey Juan Carlos

Locations

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Universidad Rey Juan Carlos

Madrid, Madrid, Spain

Site Status

Countries

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Spain

References

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Bellew SD, Colbenson KM, Bellamkonda VR. Posterior Tibial Tendon Tenosynovitis Diagnosed by Point-of-Care Ultrasound. Clin Pract Cases Emerg Med. 2017 Oct 18;1(4):439-440. doi: 10.5811/cpcem.2017.6.34430. eCollection 2017 Nov. No abstract available.

Reference Type BACKGROUND
PMID: 29849380 (View on PubMed)

Ikpeze TC, Brodell JD Jr, Chen RE, Oh I. Evaluation and Treatment of Posterior Tibialis Tendon Insufficiency in the Elderly Patients. Geriatr Orthop Surg Rehabil. 2019 Jan 24;10:2151459318821461. doi: 10.1177/2151459318821461. eCollection 2019.

Reference Type BACKGROUND
PMID: 30719400 (View on PubMed)

Mills FB 4th, Williams K, Chu CH, Bornemann P, Jackson JB 3rd. Prevalence of Abnormal Ultrasound Findings in Asymptomatic Posterior Tibial Tendons. Foot Ankle Int. 2020 Sep;41(9):1049-1055. doi: 10.1177/1071100720931085. Epub 2020 Jun 21.

Reference Type BACKGROUND
PMID: 32567358 (View on PubMed)

Rabbito M, Pohl MB, Humble N, Ferber R. Biomechanical and clinical factors related to stage I posterior tibial tendon dysfunction. J Orthop Sports Phys Ther. 2011 Oct;41(10):776-84. doi: 10.2519/jospt.2011.3545. Epub 2011 Jul 12.

Reference Type BACKGROUND
PMID: 21765219 (View on PubMed)

Abat F, Gelber PE, Polidori F, Monllau JC, Sanchez-Ibanez JM. Clinical results after ultrasound-guided intratissue percutaneous electrolysis (EPI(R)) and eccentric exercise in the treatment of patellar tendinopathy. Knee Surg Sports Traumatol Arthrosc. 2015 Apr;23(4):1046-52. doi: 10.1007/s00167-014-2855-2. Epub 2014 Jan 30.

Reference Type BACKGROUND
PMID: 24477495 (View on PubMed)

Abat F, Diesel WJ, Gelber PE, Polidori F, Monllau JC, Sanchez-Ibanez JM. Effectiveness of the Intratissue Percutaneous Electrolysis (EPI(R)) technique and isoinertial eccentric exercise in the treatment of patellar tendinopathy at two years follow-up. Muscles Ligaments Tendons J. 2014 Jul 14;4(2):188-93. eCollection 2014 Apr.

Reference Type BACKGROUND
PMID: 25332934 (View on PubMed)

Margalef R, Bosque M, Minaya-Munoz F, Valera-Garrido F, Santafe MM. Safety analysis of percutaneous needle electrolysis: a study of needle composition, morphology, and electrical resistance. Acupunct Med. 2021 Oct;39(5):471-477. doi: 10.1177/0964528420988007. Epub 2021 Feb 7.

Reference Type BACKGROUND
PMID: 33550820 (View on PubMed)

Lopez-Royo MP, Gomez-Trullen EM, Ortiz-Lucas M, Galan-Diaz RM, Bataller-Cervero AV, Al-Boloushi Z, Hamam-Alcober Y, Herrero P. Comparative study of treatment interventions for patellar tendinopathy: a protocol for a randomised controlled trial. BMJ Open. 2020 Feb 16;10(2):e034304. doi: 10.1136/bmjopen-2019-034304.

Reference Type BACKGROUND
PMID: 32066608 (View on PubMed)

Arias-Buria JL, Truyols-Dominguez S, Valero-Alcaide R, Salom-Moreno J, Atin-Arratibel MA, Fernandez-de-Las-Penas C. Ultrasound-Guided Percutaneous Electrolysis and Eccentric Exercises for Subacromial Pain Syndrome: A Randomized Clinical Trial. Evid Based Complement Alternat Med. 2015;2015:315219. doi: 10.1155/2015/315219. Epub 2015 Nov 15.

Reference Type BACKGROUND
PMID: 26649058 (View on PubMed)

Gomez-Chiguano GF, Navarro-Santana MJ, Cleland JA, Arias-Buria JL, Fernandez-de-Las-Penas C, Ortega-Santiago R, Plaza-Manzano G. Effectiveness of Ultrasound-Guided Percutaneous Electrolysis for Musculoskeletal Pain: A Systematic Review and Meta-Analysis. Pain Med. 2021 May 21;22(5):1055-1071. doi: 10.1093/pm/pnaa342.

Reference Type BACKGROUND
PMID: 33155055 (View on PubMed)

Cook JL, Purdam CR. Is tendon pathology a continuum? A pathology model to explain the clinical presentation of load-induced tendinopathy. Br J Sports Med. 2009 Jun;43(6):409-16. doi: 10.1136/bjsm.2008.051193. Epub 2008 Sep 23.

Reference Type BACKGROUND
PMID: 18812414 (View on PubMed)

Johnson KA, Strom DE. Tibialis posterior tendon dysfunction. Clin Orthop Relat Res. 1989 Feb;(239):196-206.

Reference Type BACKGROUND
PMID: 2912622 (View on PubMed)

Ross MH, Smith MD, Mellor R, Vicenzino B. Exercise for posterior tibial tendon dysfunction: a systematic review of randomised clinical trials and clinical guidelines. BMJ Open Sport Exerc Med. 2018 Sep 19;4(1):e000430. doi: 10.1136/bmjsem-2018-000430. eCollection 2018.

Reference Type BACKGROUND
PMID: 30271611 (View on PubMed)

Sanchez-Sanchez JL, Calderon-Diez L, Herrero-Turrion J, Mendez-Sanchez R, Arias-Buria JL, Fernandez-de-Las-Penas C. Changes in Gene Expression Associated with Collagen Regeneration and Remodeling of Extracellular Matrix after Percutaneous Electrolysis on Collagenase-Induced Achilles Tendinopathy in an Experimental Animal Model: A Pilot Study. J Clin Med. 2020 Oct 15;9(10):3316. doi: 10.3390/jcm9103316.

Reference Type BACKGROUND
PMID: 33076550 (View on PubMed)

Millar NL, Silbernagel KG, Thorborg K, Kirwan PD, Galatz LM, Abrams GD, Murrell GAC, McInnes IB, Rodeo SA. Tendinopathy. Nat Rev Dis Primers. 2021 Jan 7;7(1):1. doi: 10.1038/s41572-020-00234-1.

Reference Type BACKGROUND
PMID: 33414454 (View on PubMed)

Other Identifiers

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1801202201622

Identifier Type: -

Identifier Source: org_study_id

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