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Retrospective Encore Reverse Shoulder Prosthesis Study

Post Market Study on the Efficacy of the Encore Reverse Shoulder Prosthesis in a Small Group of Subjects

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00765037
Enrollment
19
Registered
2008-10-02
Start date
2008-08-31
Completion date
2009-05-31
Last updated
2010-08-25

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

Conditions

Glenohumeral Arthritis, Rotator Cuff Deficiency

Brief summary

The purpose of this study is to evaluate the survivorship and efficacy of the Encore Reverse Shoulder Prosthesis in a group of no more than 50 subjects for whom data collection has already begun.

Interventions

DEVICEEncore Reverse Shoulder Prosthesis

rotator cuff deficiency and glenohumeral arthritis

Sponsors

Encore Medical, L.P.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

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

Inclusion criteria

* The RSP is indicated for use in patients with a grossly rotator cuff deficient shoulder joint with severe arthropathy or a previously failed joint replacement with a grossly rotator cuff deficient shoulder joint. * The patient's joint must be anatomically and structurally suited to receive the selected implant(s), and a functional deltoid muscle is necessary to use the device. * The glenoid baseplate is intended for Cementless application with the addition of screws for fixation. The humeral stem is intended for cemented use only.

Exclusion criteria

* Infection or sepsis * Insufficient bone quality which may affect the stability of the implant, as determined by the physician * Muscular, neurological, or vascular deficiencies, which compromise the affected extremity * Alcoholism or other addictions * Materials (metals, etc) sensitivity * Loss of ligamentous structures * High levels of physical activity * Non-functional deltoid muscle

Design outcomes

Primary

MeasureTime frameDescription
Survivorship of the Encore Reverse Shoulder Prosthesis1 yearNumber of subjects who completed all study visits through the 1 year visit.

Countries

United States

Participant flow

Participants by arm

ArmCount
Encore RSP
Subjects who need treatment for rotator cuff deficiency or glenohumeral arthritis, received the Encore Reverse Shoulder Prosthesis and are willing to participate in the study.
19
Total19

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyLost to Follow-up5

Baseline characteristics

CharacteristicEncore RSP
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
19 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Age Continuous75 years
STANDARD_DEVIATION 4
Region of Enrollment
United States
19 participants
Sex: Female, Male
Female
14 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
11 / 19
serious
Total, serious adverse events
0 / 19

Outcome results

Primary

Survivorship of the Encore Reverse Shoulder Prosthesis

Number of subjects who completed all study visits through the 1 year visit.

Time frame: 1 year

ArmMeasureValue (NUMBER)
Encore RSPSurvivorship of the Encore Reverse Shoulder Prosthesis13 participants

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