Conjoint Tendon Resection During Reverse Total Shoulder Arthroplasty

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

26 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-04-05

Study Completion Date

2024-05-16

Brief Summary

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Reverse total shoulder arthroplasty (RTSA) can reliably restore active forward elevation, abduction, and external rotation, which are often lost in patients with massive rotator cuff tears. However, functional internal rotation (i.e., functional movements of the hand behind the body) is often unsatisfactorily restored and/or lost after RTSA. This study aims to compare the standard surgical approach for RTSA to RTSA with conjoint tendon resection with the targeted metric being postoperative functional internal rotation.

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Detailed Description

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This study will be a prospective, randomized-controlled clinical trial comparing standard of care RTSA to RTSA with conjoint tendon resection in 64 patients undergoing RTSA by a single surgeon. Participants and assessors will not be blinded to intervention. The primary outcome is postoperative functional internal rotation. Secondary outcome measures include VAS, ASES, SANE, PROMIS, and VR-12 scores, as well as forward elevation and external rotation at the side, and complications at any time point. Our null hypothesis is that patients who undergo conjoint tendon resection during RTSA will have significantly increased functional internal rotation and clinically significant improved above-mentioned scores compared to non-resected tendon patients.

Conditions

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Shoulder Injuries Patient Satisfaction Internal Rotation Contracture-shoulder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This study will be a prospective, randomized-controlled clinical trial comparing standard of care RTSA to RTSA with conjoint tendon resection in 64 patients undergoing RTSA by a single surgeon.

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Participants and assessors will not be blinded to intervention. The primary outcome is postoperative functional internal rotation. Secondary outcome measures include VAS, ASES, SANE, PROMIS, and VR-12 scores, as well as forward elevation and external rotation at the side, and complications at any time point. Our null hypothesis is that patients who undergo conjoint tendon resection during RTSA will have significantly increased functional internal rotation and clinically significant improved above-mentioned scores compared to non-resected tendon patients.

Study Groups

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Reverse Total Shoulder Arthroplasty

For RTSA using a deltopectoral approach, the Perform glenoid and humeral components of Tornier Stryker Reverse Shoulder system will be used for all cases. The sizes and offsets of the components will be chosen based on each patient's local anatomy which will vary among patients. The subscapularis tendon will be repaired using three transosseous nonabsorbable sutures whenever there is a reparable subscapularis tendon. After definitive implantation of the prosthesis is completed, in the 'no interventional' group, the wound will be closed in layers, and the shoulder will be immobilized in an abduction sling.

Group Type NO_INTERVENTION

No interventions assigned to this group

Reverse Total Shoulder Arthroplasty with Conjoint Tendon Resection

RTSA in the experimental group will be identical, except for that after definitive implantation of the prosthesis is completed, in the 'experimental' group, the conjoint tendon will be released completely via a transverse incision made at a level 2 cm distal to the coracoid process for the patients assigned the conjoint resection group. Electrocautery will be used for the resection, and the underlying muscular portion of the conjoint tendon will be preserved. As mentioned above, the control group will not receive this conjoint tendon resection. Similarly, in the experimental group, the wound will be closed in layers, and the shoulder will be immobilized in an abduction sling.

Group Type EXPERIMENTAL

Conjoint Tendon Resection

Intervention Type PROCEDURE

For conjoint tendon resection in the experimental group, the conjoint tendon will be released completely via a transverse incision made at a level 2 cm distal to the coracoid process for the patients assigned the conjoint resection group. Electrocautery will be used for the resection, and the underlying muscular portion of the conjoint tendon will be preserved.

Interventions

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