Shoulder Surgery, Interscalene Nerve Block
Conditions
Keywords
UCSD, Perineural Nerve Block, Shoulder Surgery, Pain, Grip Strength, Sensation, Interscalene Nerve Block
Brief summary
Research study to determine the proportion of cases in which an interscalene brachial plexus nerve block produces hand and forearm anesthesia.
Detailed description
This is a research study to prospectively determine the proportion of cases in which an interscalene brachial plexus nerve block produces hand and forearm anesthesia. The investigators will investigate this issue in patients having shoulder and not hand/forearm surgery. We will test hand grip strength and sensation to determine if the hand and forearm are responding to the anesthesia.
Interventions
PROCEDUREInterscalene Nerve Block
Patients undergoing shoulder surgery will be given an Interscalene Nerve Block. The patients' strength and sensation in their hand and forearm will be tested to determine if the nerve block is affectively delivering anesthetic to the nerves that serve these areas.
Sponsors
University of California, San Diego
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* 18 years of age or older * unilateral orthopedic shoulder surgery * already desiring an interscalene brachial plexus nerve block for postoperative analgesia with the anesthetic plan including a preoperative interscalene nerve block with mepivacaine
Exclusion criteria
* any known contraindication to study medications or testing hand grip strength pre/post-op * insulin-dependent diabetes mellitus * neuropathy of any etiology in the affected extremity * any anticipated incision site apart from the shoulder * Obesity * Pregnancy * Incarceration * inability to communicate with the investigators and hospital staff
Countries
United States
Outcome results
None listed