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Subscapularis Repair During Reverse Total Shoulder Arthroplasty

Subscapularis Repair During Reverse Total Shoulder Arthroplasty: a Randomized Control Trial

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05341518
Enrollment
0
Registered
2022-04-22
Start date
2023-01-02
Completion date
2025-08-31
Last updated
2024-03-15

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

Conditions

Arthropathy Shoulder, Shoulder Osteoarthritis

Brief summary

This multi-site study involving Northwestern Medicine, Beaumont Health, and Loyola Medicine seeks to answer the following question: do patients who undergo subscapularis (SSc) repair during reverse total shoulder arthroplasty (RSA) have better post-operative outcomes than patients who do not undergo SSc repair during RSA? The investigators hypothesize that patients who do not undergo SSc repair during RSA have better post-operative outcomes than patients who undergo SSc repair during RSA. This study will address the controversy surrounding SSc repair during RSA via a multi-institutional randomized controlled trial that will compare clinical outcomes of patients who receive SSc repair during RSA to those who do not.

Interventions

To complete reverse total shoulder arthroplasty, the surgeon must cut through the subscapularis muscle. In this arm of the study, the muscle will be repaired, rather than left to heal itself.

Sponsors

Northwestern University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 88 Years
Healthy volunteers
No

Inclusion criteria

1. Primary RSA procedure with repairable (intact) SSc 2. Operation will be performed by a participating surgeon using Zimmer Biomet Comprehensive Reverse Shoulder System implant 3. Diagnosis with imaging of arthropathy with rotator cuff insufficiency 4. Surgical approach: Deltopectoral 5. Fluent English speakers/readers

Exclusion criteria

1. Minor (\<18 y/o)/vulnerable populations (pregnant women, prisoners, adults unable to consent) 2. Revision surgery 3. Oncologic surgery 4. non-ZB CRSS implants 5. Unrepairable SSc

Design outcomes

Primary

MeasureTime frameDescription
The American Shoulder and Elbow Surgeons (ASES) Shoulder Scoreup to 12 months post-surgeryScored from 0 (worst shoulder condition) to 100 (best shoulder condition)

Secondary

MeasureTime frameDescription
Internal Rotator (IR) Strengthup to 12 months post-surgeryIR at the side and supported IR at 90˚ scapation; percent of nonsurgical side
PROMIS Bank v1.1 - Pain Interferenceup to 12 months post-surgeryPROMIS measures generate T-scores. T-scores are standard scores with a mean of 50 and standard deviation of 10 in a reference population (usually U.S. general population).
Shoulder Range of Motionup to 12 months post-surgeryshoulder extension, flexion, internal rotation, abduction, adduction; percent of nonsurgical side

Countries

United States

Outcome results

None listed

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