Shock therapy for knees: new study tests nerve zaps for ACL recovery
NCT ID NCT07569796
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding a mild electrical stimulation to the sciatic nerve can improve recovery after ACL knee surgery. 62 people will either get standard physiotherapy, physiotherapy plus the real nerve stimulation, or a placebo version. The goal is to see if the stimulation boosts muscle strength, reduces pain, and improves knee movement.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 62 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Use of the Semitendinous and Gracilis tendons for ACL Reconstruction * Joint Range of Motion greater than or equal to 90 * Primary ACL injury in the leg to be treated Exclusion Criteria: * Chronic or rheumatic joint disease * Central nervous system disorder * Heart disease (pacemaker) * Neoplasms * Epilepsy * Coagulopathies (use of anticoagulants) * History of spinal surgery or lumbar disease * History of neurological disorders * Prosthesis or osteosynthesis in the operated leg * Structural discrepancy in lower-limb length * Belonephobia (overwhelming fear of needles) * Neuropathic pain or bilateral symptoms * Use of analgesics * Quadriceps tendon graft harvest * Body mass index \<20 or \>30 kg/m² * Acute muscle injuries * Knee joint instability * Acute joint inflammation
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Clinica CEMTRO, Montecarmelo, Madrid
RECRUITINGMadrid, Madrid, 28049, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Knee surgery recovery: does graft type matter for muscle strength?
- Ultrasound could reveal hidden injury risks in athletes