N/A N=10

Interscalene Dynamometer Pilot Study

Total Shoulder Arthroplasty

Bottom Line

View on ClinicalTrials.gov: NCT01550952 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Mar 2016

Primary outcome: Primary: Anterior Deltoid Strength — 77 percent

Study Design & Population

Study type: Observational
Phase: N/A
Interventions: —
Age: Adult, Older Adult · 18+ yrs
Sex: All
Sponsor: Hospital for Special Surgery, New York
Primary completion: Feb 2012

Outcome Measures

Outcome	Result	p-value
PRIMARY Anterior Deltoid Strength	77	—
PRIMARY Hand Grip Strength	90	—
SECONDARY Number of Participants With Reduced Sensation in a Dermatome	8	—
SECONDARY Numeric Rating Scale (NRS) Pain Scores With Movement	0.8	—
SECONDARY Total Oral Opioid Intake in 48hrs	52.3	—

Summary

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.

Eligibility Criteria

Inclusion Criteria

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

Exclusion Criteria

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)

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01550952). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.