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

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

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.

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.

Inclusion Criteria:

• English speaking

Exclusion Criteria:

• History of ulnar neuropathy or ulnar nerve or wrist surgery (i.e. carpal tunnel)
• Upper extremity edema