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AzTrials

Achilles TendinopathyNCT05301959

Efficacy of Percutaneous Electrolysis in the Treatment of Achilles Tendinopathy

A study testing low intensity percutaneous musculoskeletal electrolysis and Silbernagel protocol in people with Achilles Tendinopathy, run by Maimonides University at 1 site in Argentina.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Achilles tendinopathy (AT) is one of the most reported myotendinous pathologies due to overuse in the literature. In the general adult population, its incidence is 2.35 cases per 1,000 patients, with no difference between men and women. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Achilles Tendinopathy
What is being tested?
low intensity percutaneous musculoskeletal electrolysis and Silbernagel protocol
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
102 participants
Where
1 siteArgentina
Study dates
1 Jul 2023to Dec 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Presence of symptoms in one or both Achilles tendons with a minimum duration of two months. In case the symptoms are bilateral, the intervention or placebo will only be administered and its results evaluated- in the limb with greater symptomatology. If it is not possible to differentiate which one presents greater pain, the right Achilles tendon will be chosen.
  • Spontaneous pain of at least three points measured by a visual analog scale (VAS), reproducible by palpation between 2 and 6 cm above the insertion of the Achilles tendon in the calcaneal bone.
  • Evidence of tendinopathy by MRI.
  • Presence of post-static dyskinesia.
  • Willingness to not perform additional treatments (such as footwear modifications, physical therapy, orthotics, injections, or surgery) for Achilles tendon pain during the conduct of the trial.
  • Willingness to attempt to discontinue self-administration of medications (NSAIDs) for pain relief Achilles tendon(s) pain for at least 14 days prior to baseline assessment and during the course of the trial.

Who cannot join

  • Presence or suspicion of pregnancy.
  • Previous surgical intervention on the AT in the symptomatic leg(s)
  • Total or partial rupture in the symptomatic AT
  • Chronic ankle instability, in the foot with symptomatic tendon(s).
  • Pathologies that can derive in pain in the region of the AT without being proper of the picture. (e.g.: osteoarthritis, impingement syndromes).
  • Presence of arthritis or any metabolic or endocrine disorder (type 1 or 2 diabetes).
Show all 13Show fewer
  • Psychological disorders.
  • Oncologic history.
  • Treatment with quinolones or fluoroquinolones during the last two years.
  • Treatment with statins for the control of hypercholesterolemia for more than two months
  • Treatments within or at the periphery of the Achilles tendon, with anesthetics, corticosteroids or any other pharmacological agent during the last three months.
  • Needle phobia
  • Allergy to metal

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Santiago M d'Almeida, PT SCS contact

01140573099

dalmeida.santiago@maimonides.edu

Argentina1 site, 1 recruiting
  • Maimonides University

    Buenos Aires, Buenos Aires F.D., 1405

    Oscar Ronzio, DHSc, +541149051140, ronzio.oscar@maimonides.edu

    Recruiting

Other trials in Argentina

About this study

Official title: Evaluation of the Efficacy of Adding Low-intensity Percutaneous Musculoskeletal Electrolysis to the Conservative Treatment of Noninsertional Achilles Tendinopathy: a Randomized Controlled Clinical Trial

Achilles tendinopathy (AT) is one of the most reported myotendinous pathologies due to overuse in the literature. In the general adult population, its incidence is 2.35 cases per 1,000 patients, with no difference between men and women. The international literature reports that up to 29% of patients fail with conservative treatment.

Within physiotherapy, new alternatives for the treatment of tendinopathies arise, applying electric currents percutaneously, which from a mechanical effect associated to the use of a needle and an electric effect by the use of galvanic currents, generate a local inflammatory response; activation of the central nervous system and analgesia.

Read more

The aim of the research is to evaluate the efficacy of adding low intensity percutaneous electrolysis to the treatment with a high load eccentric exercise program based on the protocol of Silbernagel et al. in adults with Achilles tendinopathy to improve its functionality.

A randomized, double-blind, blinded, evaluator-blinded, controlled clinical trial will be conducted in parallel groups (experimental treatment vs. sham treatment), with a follow-up at 26 and 52 weeks after the first intervention. Non-probability and intentional sampling will be performed.

Being tested
low intensity percutaneous musculoskeletal electrolysis, Sham application, Silbernagel protocol
Keywords
tendinopathy, physiotherapy, percutaneous electrolysis
Medical subject headings
Tendinopathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • low intensity percutaneous musculoskeletal electrolysisDevice

    Also called percutaneous microelectrolysis

    An acupuncture needle (0.30mm X 25mm) will be introduced into the device's strut. With the equipment on and with a base intensity of 120µA, the acupuncture needle is introduced in a proximal-distal and postero-anterior direction, in the area of the Achilles tendon body. The position of the needle will be checked with ultrasound and once the point to be treated is reached, the working intensity will be increased up to 600 µA. The emission will be maintained until the participant reports a pain of 60/100 in VAS. At that moment, the emission will be paused completely until the participant reports a sensation of at least 20/100 in VAS. After this period the emission will be continued at 600 µA. This cycle will continue until the emission lasts for more than 120 sec, continuously. At this point, the needle will be repositioned to repeat the emission protocol a maximum of 3 times in total.

  • Sham applicationDevice

    A modification will be made in a second equipment, closing the circuit with a 10kΩ resistor inside the equipment, in the output strand chip. Allowing the simulation of emission without emitting current to the participant and without being able to appreciate any type of alteration in the handling of the equipment, by the operators. Therefore, the same steps will be followed as in the experimental group.

  • Silbernagel protocolOther

    Also called Silbernagel et al. Achilles tendinopathy protocol

    The Silbernagel et al. protocol comprises several heel raising exercises with concentric and eccentric movements, performed on two legs and one leg. It is composed of 3 sets of 15 repetitions and that during the exercises allows pain to be present, but not being disabling. The exercises will be performed only once a day. The progression will be made by changing from standing exercises to monopodal support, moving from concentric-eccentric to purely eccentric loading, adding weight in a backpack (in steps of 5 kg when pain does not exceed 5 in the pain monitoring model) and finally using fast rebound exercises and plyometric exercises.

Study groups in NCT05301959
Study groupRoleWhat they receive
Experimental groupExperimentalA single weekly intervention of low intensity galvanic currents will be applied in an ultrasound-guided manner.
Receives: Device: low intensity percutaneous musculoskeletal electrolysis; Other: Silbernagel protocol
Simulated group.Sham comparatorThe application of a single weekly intervention of low intensity galvanic currents will be simulated in an echogenic way, with the equipment turned off.
Receives: Device: Sham application; Other: Silbernagel protocol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Victorian Institute of Sport Assessment - Achilles - Baseline

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: Baseline

  2. Victorian Institute of Sport Assessment - Achilles - Week 1

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: one week at study entry

  3. Victorian Institute of Sport Assessment - Achilles - Week 2

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: two week at study entry

  4. Victorian Institute of Sport Assessment - Achilles - Week 3

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: three week at study entry

  5. Victorian Institute of Sport Assessment - Achilles - Week 4

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: four week at study entry

  6. Victorian Institute of Sport Assessment - Achilles - Week 5

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: five week at study entry

  7. Victorian Institute of Sport Assessment - Achilles - Week 6

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: six week at study entry

  8. Victorian Institute of Sport Assessment - Achilles - Week 7

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: seven week at study entry

  9. Victorian Institute of Sport Assessment - Achilles - Week 8

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: eight week at study entry

  10. Victorian Institute of Sport Assessment - Achilles - Week 9

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: nine week at study entry

  11. Victorian Institute of Sport Assessment - Achilles - Week 10

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: ten week at study entry

  12. Victorian Institute of Sport Assessment - Achilles - Week 11

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: eleven week at study entry

  13. Victorian Institute of Sport Assessment - Achilles - Week 12

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: twelve week at study entry

  14. Victorian Institute of Sport Assessment - Achilles - Week 26

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: twenty-six week at study entry

  15. Victorian Institute of Sport Assessment - Achilles - Week 52

    patient reported outcomes specifically designed for the assessment of pain and function in the achilles tendinopathy. It has a scale from 0 (worst) to 100 (best).

    Measured: fifty-two week at study entry

Secondary outcomes (42)
  1. visual analog scale - Baseline

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: Baseline

  2. visual analog scale - Week 1

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: one week at study entry

  3. visual analog scale - Week 2

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: Two week at study entry

  4. visual analog scale - Week 3

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: three week at study entry

  5. visual analog scale - Week 4

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: four week at study entry

  6. visual analog scale - Week 5

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: five week at study entry

  7. visual analog scale - Week 6

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: six week at study entry

  8. visual analog scale - Week 7

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: seven week at study entry

  9. visual analog scale - Week 8

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: eight week at study entry

  10. visual analog scale - Week 9

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: nine week at study entry

  11. visual analog scale - Week 10

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: ten week at study entry

  12. visual analog scale - Week 11

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: eleven week at study entry

  13. visual analog scale - Week 12

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: twelve week at study entry

  14. visual analog scale - Week 26

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: twenty-six week at study entry

  15. visual analog scale - Week 52

    The intensity of pain experienced during a sequence of three monopodal countermovement jumps with both hands on the waist will be evaluated on a graduated scale. A maximum of three jumps will be performed and the highest jump will be recorded. Immediately afterwards, participants will be asked to indicate with an "X" on a 100mm line the intensity of pain experienced in the Achilles tendon. It has a scale from 0 (no pain) to 100 (worst pain).

    Measured: fifty-two week at study entry

  16. The Foot and Ankle Ability Measure - Baseline

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: Baseline

  17. The Foot and Ankle Ability Measure - Week 1

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: one week at study entry

  18. The Foot and Ankle Ability Measure - Week 2

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: two week at study entry

  19. The Foot and Ankle Ability Measure - Week 3

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: three week at study entry

  20. The Foot and Ankle Ability Measure - Week 4

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: four week at study entry

  21. The Foot and Ankle Ability Measure - Week 5

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: five week at study entry

  22. The Foot and Ankle Ability Measure - Week 6

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: six week at study entry

  23. The Foot and Ankle Ability Measure - Week 7

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: seven week at study entry

  24. The Foot and Ankle Ability Measure - Week 8

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: eight week at study entry

  25. The Foot and Ankle Ability Measure - Week 9

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: nine week at study entry

  26. The Foot and Ankle Ability Measure - Week 10

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: ten week at study entry

  27. The Foot and Ankle Ability Measure - Week 11

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: eleven week at study entry

  28. The Foot and Ankle Ability Measure - Week 12

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: twelve week at study entry

  29. The Foot and Ankle Ability Measure - Week 26

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: twenty-six week at study entry

  30. The Foot and Ankle Ability Measure - Week 52

    an evaluative instrument that assesses functional limitations for those with foot- and ankle-related disorders. it's a patient reported outcomes which allows to quantify sport activity and participation. It has a scale from 0 (worst) to 100 (best). It consists of 29 questions, divided into 2 subscales, activities of daily living and sports activities. The criterion for discharge is a value greater than or equal to 90 points.

    Measured: fifty-two week at study entry

  31. ultrasound Shear Wave elastography - baseline

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: Baseline

  32. ultrasound Shear Wave elastography - Week 4

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: four week at study entry

  33. ultrasound Shear Wave elastography - Week 8

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: eight week at study entry

  34. ultrasound Shear Wave elastography - Week 12

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: twelve week at study entry

  35. ultrasound Shear Wave elastography - Week 26

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: twenty-six week at study entry

  36. ultrasound Shear Wave elastography - Week 52

    Shear Wave Elastography (SWS), which consists of a special ultrasound methodology that allows quantitative characterization of the elastic capacity of a tissue through the propagation velocity of the ultrasound wave. The Siemens Acuson S2000 system with a model 9L4 linear transducer will be used.

    The patients will be placed on a table in ventral decubitus and the ankle outside the plane of the table in neutral position. To determine the point to be scanned, the maximum perpendicular distance between the anterior and posterior limits of the tendon between 2 to 6 cm from the insertion in the calcaneus will be taken and this value will be reported in mm.

    The SWS value will be expressed in m/s. The range of SWS is 0-9 m/s. The standard SWS measurement window size shall be 1cm2 , with a region of interest of 3mm. Three measurements will be recorded in each plane (regions of interest) where homogeneous tissue is considered and the average value of the 6 measurements will be reported.

    Measured: fifty-two week at study entry

  37. Vienna Achilles tendon morphological score - MRI - baseline

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: Baseline

  38. Vienna Achilles tendon morphological score - MRI - Week 4

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: four week at study entry

  39. Vienna Achilles tendon morphological score - MRI - Week 8

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: eight week at study entry

  40. Vienna Achilles tendon morphological score - MRI - Week 12

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: twelve week at study entry

  41. Vienna Achilles tendon morphological score - MRI - Week 26

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: twenty-six week at study entry

  42. Vienna Achilles tendon morphological score - MRI - Week 52

    A 1.5T Siemens Healthcare 1.5T scanner will be used for the MRI evaluation, using a gradient strength of 40 mT/m and an 8-channel coil. The standard MRI protocol will be identical for all examinations and will consist of a localizer set and three morphological MR sequences: 1) a sagittal fat-suppressed sequence; 2) a sagittal T1 sagittal spin echo (SE) sequence and 3) a T2-w sequence.

    Once the images are obtained, they will be evaluated with the "Vienna Achilles tendon morphological score" (VIMATS) protocol proposed by Apprich S. (2021) which conforms a semiquantitative rating scale where the score is composed of four different parameters: (1) thickness, (2) continuity, (3) signal and (4) associated pathologies. It has a continuous numerical scale from 0 to 100 where the higher the score, the better the patient's stage.

    Measured: fifty-two week at study entry

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Mar 2022
  2. Study start1 Jul 2023
  3. Primary completionDec 2026 (estimated)
  4. Study completionDec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
A randomized, double-blind, blinded, evaluator-blinded, controlled clinical trial will be conducted in parallel groups (experimental treatment vs. sham treatment), with a follow-up at 26 and 52 weeks after the first intervention. Non-probability and intentional sampling will be performed.
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
102 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05301959
Sponsor's protocol ID
5694
Status last verified
Apr 2026
First submitted
27 Feb 2022
Last updated
29 Apr 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing low intensity percutaneous musculoskeletal electrolysis and Silbernagel protocol in people with Achilles Tendinopathy, run by Maimonides University at 1 site in Argentina.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 29 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Argentina. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Santiago M d'Almeida, PT SCS (01140573099, dalmeida.santiago@maimonides.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Victorian Institute of Sport Assessment - Achilles - Baseline (time frame: Baseline). The study lists 15 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Apr 2026.

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