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Subscapularis Repair in Reverse Shoulder Arthroplasty

Subscapularis Repair in Reverse Shoulder Arthroplasty: a Randomized, Controlled, Multicenter, Prospective Study

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05438914
Acronym
Subscap
Enrollment
134
Registered
2022-06-30
Start date
2022-11-14
Completion date
2025-09-14
Last updated
2024-01-30

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

Conditions

Rotator Cuff Tear Arthropathy

Brief summary

This study will evaluate the subscapularis repair versus non-repair during a reverse shoulder arthroplasty (RSA).

Detailed description

The primary objective of this study is to evaluate pain and function in patients undergoing RSA with or without subscapularis repair. This primary outcome will be measured by analysis of Constant scores at two years post-operative. Secondary objectives are to evaluate pain, function and imaging, between the two groups at each applicable time point.

Interventions

DEVICERepair of the subscapularis

The subscapularis will be repaired using the suture through bone and prosthesis holes surgical technique.

Sponsors

Arthrex, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

The patients will be randomly allocated in a 1:1 ratio, with block sizes of four and six using a randomization sequence.

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

1. Patient is scheduled to undergo a reverse shoulder arthroplasty procedure using the Arthrex ReversTM system. 2. Patient voluntarily consents to participate in the study and has the mental and physical ability to participate in the study, fill out subjective questionnaires, return for follow-up visits, and comply with prescribed post-operative physical therapy. 3. Patient meets FDA cleared indications for reverse shoulder arthroplasty 4. Patient is between 18-100 years old 5. Patient agrees to also be enrolled in the Arthrex Total Shoulder Registry Study 6. Patient has a standard of care pre-operative CT taken within 6 months that has been submitted for Arthrex Virtual Implant Positioning TM (VIP) planning

Exclusion criteria

1. Patient has a history of ipsilateral shoulder arthroplasty 2. A history of shoulder septic arthritis 3. A full thickness subscapularis tear 4. An acute or malunited proximal humeral fracture 5. Chronic locked dislocation 6. Rheumatoid arthritis 7. Tumors 8. Axillary nerve damage 9. Non-functioning deltoid muscle 10. Glenoid vault deficiency precluding baseplate fixation 11. Infection and neuropathic joints 12. Known or suspected non-compliance, drug or alcohol abuse 13. Patients incapable of judgement or under tutelage 14. Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, contraindication for imaging etc. 15. The subject is related to investigator as family members, employees, or other dependent persons 16. Any prior open anterior shoulder surgery that included takedown of the subscapularis tendon or violation of the subscapularis tendon (i.e. Latarjet, Bristow)

Design outcomes

Primary

MeasureTime frameDescription
Constant-Murley Shoulder Outcome ScoreCollected at at pre-op, but the primary outcome is the score at 2 years post-procedure.A combination of objective measures and patient-reported outcomes. It defines the level of pain and the ability to carry out the normal daily activities of the patient. It is a 0-100 point scale, the higher the score, the higher the quality of the function.

Secondary

MeasureTime frameDescription
American Shoulder and Elbow Surgeons (ASES) subjective surveyCollected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.A combination of objective measures and patient-reported outcomes, it measures pain and functional limitations in the shoulder. The objective questionnaire allows documentation of range of motion in the patient.
Simple Shoulder Test (SST) questionnaireCollected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.Provides a standardized way of recording the function of a shoulder before and after treatment.
Visual Analog Scale (VAS)Collected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.The standard measure for pain on a 0-10 scale, 10 being the worst.
Western Ontario Osteoarthritis of the Shoulder Index (WOOS)Collected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.A patient administrated questionnaire for measurement of the quality of life. It provides scores on four domains: 1.) physical symptoms, 2.) sport, recreation, and work, 3.) lifestyle and 4.) emotions.
UltrasoundCollected once at either the 6 month, 1 year or 2 year timepoint.Evaluation of the subscapularis complex in patients that have been randomized to repair of the subscapularis to examine the subscapularis complex. Ultrasound scans will be read and the integrity of the subscapularis complex will be determined by the clinician to be intact, attenuated, partial tear or complete tear.
Single Assessment Numeric Evaluation score (SANE)Collected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.Asks patients to rate shoulder pain as a percentage of normal.
Standard Pre-Operative FormCollected at the pre-op visit.A patient administered form that asks patients to evaluate their expectations of their scheduled Arthroplasty procedure.
Return to Work FormCollected at pre-op, 26 weeks and 1 year.A patient administered form that asks patients to determine the effect that their shoulder has had on their employment.
Standard Late Postoperative FormCollected at the 1 year and 2 year timepoints.A patient administered form that asks patient to evaluate if their expectations were met regarding their Arthroplasty procedure.
Veterans Rand 12 Item Health Survey (VR-12)Collected at pre-op, 9 weeks, 26 weeks, 1 year and 2 year post-op timepoints.A self-administered health measure. Answers are summarized into two scores, a Physical Component Score and a Mental Component Score, which provides an important contrast between the respondents' physical and psychological health status.

Countries

United States

Contacts

Primary ContactKelly A Ganz
kelly.ganz@arthrex.com1 (800) 933-7001
Backup ContactSamantha Martino
samantha.martino@arthrex.com1 (800) 933-7001

Outcome results

None listed

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