Comparison of Ultrasound and Anatomic Landmark Techniques of the Ulnar and Posterior Tibial Nerves

Conditions

• Ulnar Nerve

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Accepted

Interventions

• Hand measurements — OTHER
  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
• Foot/ankle measurements — OTHER
  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-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

Study Details

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.

Key Dates

Start date

Apr 30, 2026

Status verified

Mar 2026

Primary completion

Jan 31, 2027

Completion

Jan 31, 2027

Study Design

Enrollment

40 participants (estimated)

Arms

• Arm: Volunteers
  Employee volunteers will have hand measurements obtained to help identify location of ulnar nerve.

Primary Outcome Measure

Wrist width [ Time Frame: Baseline ]

Central Contacts

• Ally R. Sapin, MS
  904-956-3328
  [email protected]

Locations (1)

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