Comparison of Ultrasound and Anatomic Landmark Techniques of the Ulnar and Posterior Tibial Nerves
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Hand measurements, Foot/ankle measurements.
- Who it may be relevant to
- Registry conditions: Ulnar Nerve. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
The purpose of this study is to determine whether placement of stimulating electrodes over the ulnar nerve is important for proper delivery of current leading to stimulation of intrinsic hand muscles.
Detailed description
Placement of stimulating electrodes over the ulnar nerve is important for proper delivery of current leading to stimulation of intrinsic hand muscles. Accuracy may be improved with a better description of the precise location of the ulnar nerve. There may be a simple fraction of the wrist width that can be utilized to assist the busy practitioner with accurate placement of the stimulating electrodes over the ulnar nerve. It is expected that the ulnar groove, when easily identified, will be an accurate estimate (within 10% of total wrist width) of the ulnar nerve location.
Interventions
- Other Hand measurements
Ulnar right: * Width of wrist * Distance from radial side to middle of ulnar groove * Photo of ulnar groove o Grade ability to identify: easy, moderate-difficult, unable * Ultrasound measurements Ulnar left: * Width of wrist * Distance from radial side to middle of ulnar groove * Photo of ulnar groove o Grade ability to identify: easy, moderate-difficult, unable * Ultrasound measurements - Other Foot/ankle measurements
Posterior tibial right: * Distance between prominence of medial malleolus and mid-Achilles tendon * Distance artery point of maximal pulsation to posterior border of medial malleolus * Distance artery point of maximal pulsation to medial border of Achilles tendon * Photo taken after palpating posterior tibial artery o Grade ability to identify: easy, moderate-difficult, unable * Ultrasound measurements Posterior tibial left: * Distance between prominence of medial malleolus and mid-Achille
Primary outcome measures
- Wrist width [Time frame: Baseline]
- Reliability of wrist width to locate ulnar nerve [Time frame: Baseline]
Eligibility criteria
Inclusion criteria
- English speaking
Exclusion criteria
- History of ulnar neuropathy or ulnar nerve or wrist surgery (i.e. carpal tunnel)
- Upper extremity edema
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Other
Study locations
United States · 1 center
- Mayo Clinic — Jacksonville
Identifiers
NCT: NCT07515911 · 25-013952