Subscapularis-Sparing Total Shoulder Arthroplasty

NCT07410650 | Enrolling By Invitation DMC

• 1 other identifier: 137991
• Study Type: observational
• Target: 50
• Locations: 1 country
• Sites: 1

Brief Summary

The investigators purpose of this study are to perform a prospective clinical study to determine the following after subscapularis-sparing anatomic total shoulder arthroplasty performed for glenohumeral osteoarthritis:

1. 1.patient-reported outcomes
2. 2.shoulder motion and strength
3. 3.rotator cuff integrity
4. 4.the accuracy of component placement and the completeness of osteophyte removal

Conditions

Total Shoulder Arthroplasty

Keywords

Glenohumeral Osteoarthritis; Total Shoulder Arthroplasty; Subscapularis-Sparing; Prospective Study; Patient-Reported Outcomes

Outcome Measures

Primary Outcomes (15)

• Patient-reported outcome (American Shoulder and Elbow Surgeons (ASES) Score

  Shoulder specific scoring system out of 100. A patient-reported score with visual analog scale for pain and functional subscales ranging from 0 (worse pain and function loss) to 50 (no pain and excellent function). Both scores are summed for a maximum score of 100.

  Pre-operative

• Patient-reported outcome (Simple Shoulder Test (SST))

  There are 12 shoulder specific questions which the patient answers "yes" or "no". The questions ask about strength, function and range of motion. To score the test, divide the number of "yes" answers by the total number of questions answered and then multiply by 100. 0% is the worst score to 100% being the best score.

  Pre-operative

• Patient-reported outcome (Visual Analogue Score (VAS))

  VAS pain score (0 no pain - 10 severe pain)

  Pre-operative

• Patient-reported outcome (American Shoulder and Elbow Surgeons (ASES) Score

  Shoulder specific scoring system out of 100. A patient-reported score with visual analog scale for pain and functional subscales ranging from 0 (worse pain and function loss) to 50 (no pain and excellent function). Both scores are summed for a maximum score of 100.

  6-weeks post-operative

• Patient-reported outcome (Simple Shoulder Test (SST))

  There are 12 shoulder specific questions which the patient answers "yes" or "no". The questions ask about strength, function and range of motion. To score the test, divide the number of "yes" answers by the total number of questions answered and then multiply by 100. 0% is the worst score to 100% being the best score.

  6-weeks post-operative

• Patient-reported outcome (Visual Analogue Score (VAS))

  VAS pain score (0 no pain - 10 severe pain)

  6-weeks post-operative

• Patient-reported outcome (American Shoulder and Elbow Surgeons (ASES) Score

  Shoulder specific scoring system out of 100. A patient-reported score with visual analog scale for pain and functional subscales ranging from 0 (worse pain and function loss) to 50 (no pain and excellent function). Both scores are summed for a maximum score of 100.

  3-months post-operative

• Patient-reported outcome (Simple Shoulder Test (SST))

  There are 12 shoulder specific questions which the patient answers "yes" or "no". The questions ask about strength, function and range of motion. To score the test, divide the number of "yes" answers by the total number of questions answered and then multiply by 100. 0% is the worst score to 100% being the best score.

  3-months post-operative

• Patient-reported outcome (Visual Analogue Score (VAS))

  VAS pain score (0 no pain - 10 severe pain)

  3-months post-operative

• Patient-reported outcome (American Shoulder and Elbow Surgeons (ASES) Score

  Shoulder specific scoring system out of 100. A patient-reported score with visual analog scale for pain and functional subscales ranging from 0 (worse pain and function loss) to 50 (no pain and excellent function). Both scores are summed for a maximum score of 100.

  1-year post-operative

• Patient-reported outcome (Simple Shoulder Test (SST))

  There are 12 shoulder specific questions which the patient answers "yes" or "no". The questions ask about strength, function and range of motion. To score the test, divide the number of "yes" answers by the total number of questions answered and then multiply by 100. 0% is the worst score to 100% being the best score.

  1-year post-operative

• Patient-reported outcome (Visual Analogue Score (VAS))

  VAS pain score (0 no pain - 10 severe pain)

  1-year post-operative

• Patient-reported outcome (American Shoulder and Elbow Surgeons (ASES) Score

  Shoulder specific scoring system out of 100. A patient-reported score with visual analog scale for pain and functional subscales ranging from 0 (worse pain and function loss) to 50 (no pain and excellent function). Both scores are summed for a maximum score of 100.

  2-years post-operative

• Patient-reported outcome (Simple Shoulder Test (SST))

  There are 12 shoulder specific questions which the patient answers "yes" or "no". The questions ask about strength, function and range of motion. To score the test, divide the number of "yes" answers by the total number of questions answered and then multiply by 100. 0% is the worst score to 100% being the best score.

  2-years post-operative

• Patient-reported outcome (Visual Analogue Score (VAS))

  VAS pain score (0 no pain - 10 severe pain)

  2-years post-operative

Interventions

Subscapularis-Sparing Total Shoulder Arthroplasty PROCEDURE

A surgical technique for anatomic total shoulder arthroplasty that does not involve cutting any muscles or tendons.

Eligibility Criteria

• Age: 18 Years - 90 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients undergoing subscapularis-sparing anatomic total shoulder arthroplasty.

You may qualify if:

• Patients undergoing subscapularis-sparing anatomic total shoulder arthroplasty by the principal investigator at the University of Utah.

You may not qualify if:

• Patients unwilling to consent and comply with study procedures (i.e. follow up visits).
• Patients under the age of 18.
• Patients with contraindications to an anatomic total shoulder arthroplasty such as active infection, insufficient glenoid bone, damage to the rotator cuff, or a history of instability.
• Patients with known prior shoulder arthroplasty.
• Patients unable to undergo a magnetic resonance imaging study.

Sponsors & Collaborators

• University of Utah: lead

Study Sites (1)

University of Utah Orthopedics

Salt Lake City, Utah, 84108, United States

Location

Study Officials

• Peter Chalmers, M.D.

  University of Utah Orthopaedics

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principle Investigator

Study Record Dates

• First Submitted: February 5, 2026
• First Posted: February 13, 2026
• Study Start: January 29, 2021
• Primary Completion (Estimated): January 1, 2027
• Study Completion (Estimated): January 1, 2027
• Last Updated: February 13, 2026

Record last verified: 2026-02

Locations

US (1)