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A Post-Market Clinical Evaluation of the ReUnion Reversible Fracture (RFX) System

A Post-Market Clinical Evaluation of the ReUnion Reversible Fracture (RFX) System

Status
Terminated
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04089371
Enrollment
10
Registered
2019-09-13
Start date
2019-10-01
Completion date
2022-07-08
Last updated
2025-01-20

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

Conditions

Arthroplasty, Hemiarthroplasty, Shoulder Pain

Keywords

Arthroplasty, Hemiarthroplasty, Shoulder, Replacement

Brief summary

This investigation is a prospective, multi-center clinical investigation. It is anticipated that a total of one hundred (100) subjects will be enrolled at approximately 5-10 sites. The clinical investigation has been designed to follow the surgeon's standard of care for joint arthroplasty patients, which entails clinical evaluation on a regular ongoing basis, or as needed should the patient become symptomatic in the treated joint.

Detailed description

The objective of this clinical investigation is to demonstrate the safety and efficacy/performance of the ReUnion RFX System. Efficacy/performance of the procedure will be measured by the American Shoulder and Elbow Surgeons (ASES) Shoulder Score. Safety of the ReUnion RFX System will be demonstrated through reporting of device-related intraoperative and postoperative Adverse Events (AEs). Enrolled subjects will be assessed at Pre-Operative, Operative/Discharge, and at 6 Weeks, 6 Months, 12 Months, 24 Months and annually thereafter up to 10 years following the index procedure.

Interventions

DEVICEReUnion Total Shoulder Arthroplasty (TSA)

The ReUnion RFX System includes a Reversible Fracture Stem (RFX Stem) that can utilize either the ReUnion Total Shoulder Arthroplasty (TSA) or ReUnion Reverse Shoulder Arthroplasty (RSA) humeral and glenoid components and is indicated for use as a hemi, total or reverse shoulder replacement. The ReUnion RFX stem is intended for cemented use only.

DEVICEReUnion Reverse Shoulder Arthroplasty (RSA)

The ReUnion RFX System includes a Reversible Fracture Stem (RFX Stem) that can utilize either the ReUnion Total Shoulder Arthroplasty (TSA) or ReUnion Reverse Shoulder Arthroplasty (RSA) humeral and glenoid components and is indicated for use as a hemi, total or reverse shoulder replacement. The ReUnion RFX stem is intended for cemented use only.

Sponsors

Stryker Trauma and Extremities
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Subject is willing to sign the informed consent. * Subject is willing and able to comply with postoperative scheduled clinical evaluations. * Subject is male or non-pregnant female and 18 years or older at the time of surgery. * When used with ReUnion Total Shoulder Arthroplasty (TSA)Humeral & Glenoid components as a Hemiarthroplasty or Total Shoulder Replacement, subject has one or more of the following: * Aseptic necrosis of humeral head; * Painful, disabling joint disease of the shoulder resulting from degenerative arthritis, rheumatoid arthritis or post-traumatic arthritis; * Proximal humeral fracture and/or dislocation; * Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results; * Previous unsuccessful total shoulder replacement, resurfacing or other procedure * When used with ReUnion RSA Humeral & Glenoid Components as a primary, fracture or revision total shoulder replacement, subject's joint has gross rotator cuff deficiency, a functional deltoid muscle and is anatomically and structurally suited to receive the implant, and subject has one or more of the following: * Painful, disabling joint disease of the shoulder resulting from degenerative arthritis or rheumatoid arthritis; * Proximal humeral fracture * Previously failed shoulder joint replacement

Exclusion criteria

* Subject has an active or suspected latent infection in or about the shoulder joint. * Subject has mental or neuromuscular disorder which would create an unacceptable risk of prosthesis instability, prosthesis fixation failure or complications in postoperative care. * Subject has bone stock compromised by disease, infection or prior implantation which cannot provide adequate support and/or fixation to the prosthesis. * Subject has anticipated activities which would impose high stresses on the prosthesis and its fixation. * Subject is obese such that he/she produces a load on the prosthesis which can lead to failure of fixation of the device or to failure of the device itself. * Subject has severe concomitant disease(s)which may significantly affect the clinical outcome. * For Total Shoulder Arthroplasty and Hemiarthroplasty: Subject has absent, irreparable or non-functioning rotator cuff and other essential muscles

Design outcomes

Primary

MeasureTime frameDescription
24-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)24 monthsThis is a mixed outcome reporting measure, applicable for use in patients with shoulder pathology regardless of diagnosis and consists of a pain visual analog scale (VAS) and 10 functional questions. The primary endpoint of the clinical investigation is to demonstrate non-inferiority of the device to the selected literature controls, as measured by the ASES Shoulder Score at 24 Months post-operative. Scores range from 0 to 100 with a score of 0 indicating a worse shoulder condition and 100 indicating a better shoulder condition.
12-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)*12 months (reporting 12mth as more data available)This is a mixed outcome reporting measure, applicable for use in patients with shoulder pathology regardless of diagnosis and consists of a pain visual analog scale (VAS) and 10 functional questions. The primary endpoint of the clinical investigation is to demonstrate non-inferiority of the device to the selected literature controls, as measured by the ASES Shoulder Score at 24 Months post-operative. Scores range from 0 to 100 with a score of 0 indicating a worse shoulder condition and 100 indicating a better shoulder condition.

Secondary

MeasureTime frameDescription
Device-related Adverse Events24 mthsIncidence of intraoperative and post-operative adverse events related to the device will be collected and reported. Time to earliest device-related incident will be analyzed.
Implant Survivorship10 yearsTime to mortality or last available assessment will be measured and reported.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm A Total Shoulder Arthroplasty / Hemiarthroplasty
Total Shoulder Arthroplasty (TSA) Humeral & Glenoid components as a Hemiarthroplasty or Total Shoulder Replacement. ReUnion Total Shoulder Arthroplasty (TSA): The ReUnion RFX System includes a Reversible Fracture Stem (RFX Stem) that can utilize either the ReUnion Total Shoulder Arthroplasty (TSA) or ReUnion Reverse Shoulder Arthroplasty (RSA) humeral and glenoid components and is indicated for use as a hemi, total or reverse shoulder replacement. The ReUnion RFX stem is intended for cemented use only.
0
Arm B Reverse Shoulder Arthroplasty
Reverse Shoulder Arthroplasty (RSA) Humeral & Glenoid Components as a primary, fracture or revision total shoulder replacement ReUnion Reverse Shoulder Arthroplasty (RSA): The ReUnion RFX System includes a Reversible Fracture Stem (RFX Stem) that can utilize either the ReUnion Total Shoulder Arthroplasty (TSA) or ReUnion Reverse Shoulder Arthroplasty (RSA) humeral and glenoid components and is indicated for use as a hemi, total or reverse shoulder replacement. The ReUnion RFX stem is intended for cemented use only.
10
Total10

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyStudy terminated early09
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicArm B Reverse Shoulder ArthroplastyTotal
Age, Continuous70.80 years
STANDARD_DEVIATION 7.64
70.80 years
STANDARD_DEVIATION 7.64
Body Mass Index (BMI)30.62 kg/m²
STANDARD_DEVIATION 6.67
30.62 kg/m²
STANDARD_DEVIATION 6.67
Race/Ethnicity, Customized
Ethnicity
Caucasian
10 Participants10 Participants
Race/Ethnicity, Customized
Ethnicity
N/A
0 Participants0 Participants
Region of Enrollment
United States
10 participants10 participants
Sex: Female, Male
Female
9 Participants9 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 10
other
Total, other adverse events
0 / 00 / 10
serious
Total, serious adverse events
0 / 00 / 10

Outcome results

Primary

12-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)

This is a mixed outcome reporting measure, applicable for use in patients with shoulder pathology regardless of diagnosis and consists of a pain visual analog scale (VAS) and 10 functional questions. The primary endpoint of the clinical investigation is to demonstrate non-inferiority of the device to the selected literature controls, as measured by the ASES Shoulder Score at 24 Months post-operative. Scores range from 0 to 100 with a score of 0 indicating a worse shoulder condition and 100 indicating a better shoulder condition.

Time frame: *12 months (reporting 12mth as more data available)

Population: No Subjects were enrolled in Arm A. \*Limited Sample Size for Arm B at 12mths, only 4 out of 10 subjects with available data for Arm B.

ArmMeasureValue (MEAN)Dispersion
Arm B Reverse Shoulder Arthroplasty12-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)65.25 score on a scaleStandard Deviation 20.82
Primary

24-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)

This is a mixed outcome reporting measure, applicable for use in patients with shoulder pathology regardless of diagnosis and consists of a pain visual analog scale (VAS) and 10 functional questions. The primary endpoint of the clinical investigation is to demonstrate non-inferiority of the device to the selected literature controls, as measured by the ASES Shoulder Score at 24 Months post-operative. Scores range from 0 to 100 with a score of 0 indicating a worse shoulder condition and 100 indicating a better shoulder condition.

Time frame: 24 months

Population: No Subjects were enrolled in Arm A. \*Limited Sample Size for Arm B at 24mths, only 2 out of 10 subjects with available data for Arm B.

ArmMeasureValue (MEAN)Dispersion
Arm B Reverse Shoulder Arthroplasty24-month Mean ASES Shoulder Score: Arm B (Reverse Shoulder Arthroplasty)86.50 score on a scaleStandard Deviation 4.95
Secondary

Device-related Adverse Events

Incidence of intraoperative and post-operative adverse events related to the device will be collected and reported. Time to earliest device-related incident will be analyzed.

Time frame: 24 mths

Population: No adverse events were reported.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm B Reverse Shoulder ArthroplastyDevice-related Adverse Events0 Participants
Secondary

Implant Survivorship

Time to mortality or last available assessment will be measured and reported.

Time frame: 10 years

Population: Due to early study termination, the planned implant survivorship analysis could not be performed; therefore, secondary efficacy/performance could not be assessed. It is to be noted that during the study, no intraoperative nor postoperative AEs were reported, as well as no reported subject deaths, therefore the raw survival for the 10 subjects in Arm B at the time of study closure was 100%.

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