Mechanomyography for Predictor of Prognosis in CuTS and PND Patients

September 2, 2025 updated by: Wilson Z. Ray, Washington University School of Medicine

Identification and Validation of Non-invasive Mechanomyography as a Valuable Predictor of Clinical Course and Long-term Prognosis for Cubital Tunnel Syndrome and Peroneal Nerve Decompression Patients

The study will be a non-blinded two cohort design consisting only of symptomatic patients with CuTS or compressive peroneal neuropathy or in need of peroneal nerve decompression. The first cohort will be - patients with CuTS. Evaluation of each CuTS patient will include assessment by the treating surgeon and a certified hand therapist. Patients who have clinical examination and history consistent with a diagnosis of CuTS based on subjective and functional assessment outlined below will be consented to this study. The second cohort will be patients in need PND for compressive neuropathy of peroneal nerve. PND patients will be evaluated by clinical exam and have imaging with high resolution ultrasound or MRI negative for mass lesion.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Visit 1

  • Exam and discussion with surgeon
  • Exam and testing with Occupational Hand Therapist (Standard of Care) as described above. (CuTS cohort)
  • Diagnostic studies (EMG/NCT) (Standard of Care)
  • Questionnaires - PROMIS and ODI

Visit 2

  • Standard of Care surgery
  • During surgery, the surgeon will perform an MMG immediately pre-decompression and immediately post-decompression of the nerve. This will entail placing a sensor and probe on the nerve that will be decompressed.

Visit 3 and 4 (6 week and 3 month post-op)

  • Clinical Exam by Surgeon
  • Exam and testing with Occupational Therapist (Standard of Care) as described above. (CuTS cohort)
  • Questionnaires - PROMIS and ODI

Visit 5 (6 months post-op)

  • Clinical Exam by Surgeon
  • Exam and testing with Occupational Therapist (Standard of Care) as described above. (CuTS cohort)
  • Questionnaires - PROMIS and ODI
  • Evaluation of MMG parameters

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
23

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University in St. Louis

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Subjects will be recruited in the investigator's patient population.

Description

Inclusion Criteria:

  • Patients who have a diagnosis of Cubital Tunnel Syndrome or Compressive Peroneal Nerve Neuropathy and will be undergoing a decompressive surgery.

Exclusion Criteria:

  • Patients under 18 years of age
  • Patients who are unable to return for follow-up evaluation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Cubital Tunnel Syndrome Patients
Cubital Tunnel Syndrome patients. Patients will undergo standard of care exams and surgery. During surgery, the surgeon will apply the mechanomyography (MMG) to the targeted nerve immediately prior and post decompression. Subjects will be followed until they are 6 months postop.
Device: Mechanomyography (MMG)
MMG, as described in the cohort descriptions, to be used during surgery to see if they are predictive of patient outcomes.
Peroneal Nerve Decompression Patients
Patients with compressive peroneal nerve neuropathy and will undergo a Peroneal Nerve Decompression (PND). Patients will undergo standard of care exams and surgery. During surgery, the surgeon will apply the mechanomyography (MMG) to the targeted nerve immediately prior and post decompression. Subjects will be followed until they are 6 months postop.
Device: Mechanomyography (MMG)
MMG, as described in the cohort descriptions, to be used during surgery to see if they are predictive of patient outcomes.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
PROMIS Questionnaire
Time Frame: 6 months
PROMIS® (Patient-Reported Outcomes Measurement Information System) is a set of person-centered measures that evaluates and monitors physical, mental, and social health in adults and children. It can be used with the general population and with individuals living with chronic conditions. Scores range from 0-50 with a higher indicating a better outcome.
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Oswestry Disability Index (ODI)
Time Frame: 6 months
10 question tool that researchers and disability evaluators use to measure a patient's permanent functional disability. Score ranges from 0-100. Lower scores indicate a better outcome.
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Washington University School of Medicine

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Mayo Clinic

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Wilson Z Ray, MD, Washington University School of Medicine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 3, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 5, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 17, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 27, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 25, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 26, 2020

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 9, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 2, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 201905017

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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