Interscalene Dynamometer Pilot Study

Completed

Conditions studied: Total Shoulder Arthroplasty

In brief

Total shoulder arthroplasty (shoulder replacement) can cause severe postoperative pain. Commonly, patients receive general anesthesia with interscalene block (injection of local anesthetic or numbing medicine near nerves in the shoulder) during surgery. As a result of the interscalene block, patients often experience sensory and motor blockade. The purpose of this study is to determine the effects of the interscalene block on the anterior deltoid muscle and hand grip strength after total shoulder arthroplasty.

Key facts

Study ID

NCT01550952

Run by

Hospital for Special Surgery, New York

People needed

10

Starts

2011-12-01

Expected to finish

2012-02-01

Last updated by the study team

2016-03-31

Who can join

Age: 18 and older, up to 80. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients scheduled for primary total shoulder arthroplasty
• Age 18 to 80 years old
• Planned use of general anesthesia via laryngeal mask airway (LMA) and peripheral nerve block
• Ability to follow study protocol
• Patients with American Society of Anesthesiologists (ASA) physical status of I, II or III

You may not qualify if…

• Patients younger than 18 years old and older than 80
• Patients not intending to receive general anesthesia and peripheral nerve block
• Allergy or intolerance to one of the study medications
• Patients with an ASA of IV
• Hepatic or renal insufficiency
• Chronic opioid use (taking opioids for longer than 3 months)

Where it is running

• Hospital for Special Surgery — New York, New York, United States

Full record on ClinicalTrials.gov

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