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Postoperative Pain Control in Total Shoulder Arthroplasty

A Prospective Randomized Controlled Trial to Evaluate the Efficacy of an Interscalene Brachial Plexus Block and Multimodal Analgesia With and Without Liposomal Bupivacaine for Postoperative Pain Control in Total Shoulder Arthroplasty

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05068960
Enrollment
100
Registered
2021-10-06
Start date
2021-03-01
Completion date
2025-02-01
Last updated
2025-03-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Total Shoulder Arthroplasty

Brief summary

A double blind, prospective, randomized trial to evaluate postoperative pain, narcotic use, patient satisfaction, and function among shoulder arthroplasty patients receiving interscalene block with and without the addition of liposomal bupivacaine.

Detailed description

In order to reduce narcotic abuse potential, orthopaedic surgeons have explored multimodal pain regimens in addition to regional anesthesia to improve postoperative pain control. One commonly used intervention to reduce postoperative shoulder pain has been the interscalene brachial plexus block. This block provides significant pain relief for shoulder procedures, but has been limited to less than 24 hours even with long acting anesthetics. In the setting of shoulder arthroplasty, this short-term pain control often leads to the need for increased narcotic pain medication. Since shoulder arthroplasty has been steadily increasing in the United States with an annual growth rate of 10.6%, it is imperative to control patients' postoperative pain without increasing their risk for opiate abuse. A potential method for achieving this is by using liposomal bupivacaine in the interscalene blocks. This study is a double blind, prospective, randomized trial to evaluate the postoperative pain profiles among shoulder arthroplasty patients receiving interscalene block with and without the addition of liposomal bupivacaine. The purpose of this study is to determine if patients undergoing shoulder arthroplasty with an interscalene brachial plexus block with liposomal bupivacaine (study group) or without liposomal bupivacaine (control group) will have differences in postoperative opiate consumption, patient-reported pain, satisfaction with surgery, and shoulder function.

Interventions

DRUGBupivacaine

Interscalene block with bupivacaine for pain control following total shoulder arthroplasty

DRUGLiposomal bupivacaine

Addition of liposomal bupivacaine to the interscalene block for extended pain control following total shoulder arthroplasty

Sponsors

Scripps Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Patients will be blinded. Surgeon, nurses, and other clinical care providers will be blinded. Research staff will be blinded. The only staff who knows study group assignment is the pharmacist and the anesthesiologist and preoperative nurse who will administer the interscalene block.

Intervention model description

Double Blinded Randomized Controlled Trial

Eligibility

Sex/Gender
ALL
Age
50 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

• Patients undergoing primary shoulder arthroplasty or reverse shoulder arthroplasty

Exclusion criteria

* Patients under the age of 50 years * Patients over the age of 85 * Patients undergoing a revision shoulder procedure * Documented drug or alcohol abuse * Active narcotic use within 3 months prior to surgery * Neurological deficit * Allergy to amide anesthetics * Oxycodone intolerance * Unable to take Celebrex * Enrollment in another clinical trial * Comorbidity that is contraindicated with the administration of an interscalene block * Cognitive or mental health status that interferes with study

Design outcomes

Primary

MeasureTime frameDescription
Narcotic usagePostoperatively (up to 1 week)Number and type of narcotic pain pills consumed during the first postoperative week (also converted into morphine equivalents)

Secondary

MeasureTime frameDescription
Severity of pain and its impact on functioning (Brief Pain Inventory - Short Form modified)Postoperatively (at 1 week)Patients' self-reported pain severity and impact on functioning as measured on the Brief Pain Inventory Short-Form modified survey
Pain score (Numeric Rating Scale): Preoperatively, postoperatively, and change from preoperatively to postoperativelyPreoperatively (up to 30 days before surgery) and postoperatively (at 4 weeks), and change from preoperatively to postoperativelyPatients' self-reported pain as measured on the Numeric Rating Scale
American Shoulder and Elbow Surgeons (ASES) score: preoperatively, postoperatively, and change from preoperatively to postoperativelyPreoperatively (up to 30 days before surgery) and postoperatively (at 4 weeks), and change from preoperatively to postoperativelyThe ASES score is a 100-point scale that evaluates two dimensions of shoulder function: pain and performance in activities of daily living. Each of the two domains make up for 50 of the 100 points. A score of 0 indicates the worst shoulder condition and a score of 100 indicates the best shoulder condition.
Satisfaction with the results of surgery (Self-Administered Patient Satisfaction Scale)Postoperatively (at 4 weeks)Patients' satisfaction with results of surgery as measured on the Self-Administered Patient Satisfaction Scale
Non narcotic pain medication usagePostoperatively (up to 1 week)Number and type of non-narcotic pain pills consumed during the first postoperative week

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026