Anatomical Shoulder™ Inverse/Reverse Study

Not Applicable

Completed

Brief Summary: The purpose of this study is to obtain outcomes data on the Anatomical Shoulder™ Inverse/Reverse System by analysis of standard scoring systems and radiographs.

Outcome data will be collected using the following standard scoring systems of which summary statistics will be provided:

• Constant and Murley Score to evaluate clinical parameters such as range of motion, power, level of pain and functional ability.

Detailed Description: This is a multi-centre, non-comparative, prospective post-market surveillance study involving orthopaedic surgeons skilled in shoulder replacement surgery. Each case enrolled will receive an Anatomical Shoulder™ Inverse/Reverse implant. All system components are CE-marked and commercially available. Patients will be selected according to the subject selection criteria.

All patients will undergo pre-operative, intra-operative and post-operative physical examination, radiographic evaluation according to the hospital's routine procedure and collection of quality of life metrics. Follow-up evaluations are to be conducted at either 6 weeks or 6 months (according to the hospital's standard care plan) and thereafter at 1, 2, 5 and 10 years post hospital discharge.

There are 5 study centres taking part in this project enrolling in total a maximum of 160 patients.

Recruitment & Eligibility

Inclusion Criteria

Age - 18 years minimum.
Sex - male and female.
General Health - the patient should be able to undergo surgery and participate in a follow-up program based upon physical examination and medical history.
Informed Consent - patient or patient's legal representative has signed a Patient Informed Consent form.
Indications - Diagnosis of disease or trauma in the affected joint, including cuff-tear arthropathy, failure of prior rotator cuff surgery and irreparable rotator cuff tears associated with loss of glenohumeral stability with the indication for total shoulder arthroplasty.
The deltoid muscle has to be intact in all 3 parts (clavicular, acromial as well as spinal).

Exclusion Criteria

Patient is skeletally immature.
Patient is pregnant.
Patient is unwilling or unable to cooperate in a follow-up program.
Patient shows one of the following medical conditions - Chronic fracture, Acute fracture, Axillary nerve lesion, Severe loss of humeral or glenoid bone, Paralysis of the deltoid muscle, Active Infection
Patient requires one of the following medical interventions - Implant Revision, Glenoid bone grafting, Autografts

Primary Outcome Measures

Name	Time	Method
Functional Performance	10 years	Constant \& Murley Score. This evaluates clinical parameters such as range of motion, power, level of pain and functional ability. The score ranges from 0 - 100 with a higher score representing a better outcome.

Secondary Outcome Measures

Name	Time	Method
Survival (Kaplan-Meier)	10 years	The Kaplan-Meier estimator is a non-parametric statistic used to estimate the survival function from lifetime data. It is used to measure the fraction of patients living (in this case without a revision surgery) for a certain amount of time after treatment. A higher score is a better outcome.

Locations (5): AZ Monica Antwerpen
🇧🇪
Antwerpen, Belgium
HELIOS ENDO-Klinik Hamburg
🇩🇪
Hamburg, Germany
Vitos Orthopädische Klinik Kassel
🇩🇪
Kassel, Germany
Uniklinik Balgrist
🇨🇭
Zürich, Switzerland
The Pennine Acute Hospital NHS Trust
🇬🇧
Manchester, United Kingdom
AZ Monica Antwerpen
🇧🇪Antwerpen, Belgium