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Shoulder arthroplasty is a reliable procedure for the treatment of severe shoulder joint diseases to relieve pain and restore shoulder function.
Shoulder implants commonly used are characterised by a humeral stem and complications related to the stem are not infrequent. These include: bone stock loss, intraoperative and postoperative break around the implant, malpositioning of the humeral component and difficult eradication of infections inside the bone around the implant.
With the aim of reducing stem-related complications, a novel prosthesis characterised by a stem-less design has been developed.
The objective of this study is therefore to explore how well people recover after shoulder replacement with this novel stem-less shoulder prosthesis. This will be assessed over 5 years in three different countries in Europe using patient completed questionnaires and clinical and radiographic assessments.
Full description
The hypothesis at the base of the study is that the SMR stemless system might contribute to ensure good clinical outcomes and an effective stability and might avoid the potential complications associated with a traditional stemmed implant.
The aim of this study is to assess clinical, radiographic and subjective outcomes after anatomic or reverse shoulder arthroplasty with a SMR stemless prosthesis, define the survivorship of the implant and identify possible risk factors that may lead to failure.
This is a post-marketing clinical study, because the study device is registered, CE marked and used according to the intended use.
It is an international, multi-centre, prospective case series. The assignment of any patient involved in the study is determined by the aetiology preoperatively evaluated by the Investigator and falls within current practice. The decision to use a specific prosthesis design is decided by the Investigators independently and clearly separated from the decision to include the patient in the study.
The evaluation has an internal control because the assessment of post-surgery data is compared to baseline measurements (pre-operative clinical analysis and radiographic analysis at discharge). It is open label.
The investigation will be carried out in 3 sites in Europe for a maximum total number of 78 treated patients. Accrual will be competitive until the required recruitment target is met. Equal numbers will be recruited at each of three centres (26 patients per site), but a deviation of 8 participants will be accepted (minimum of 18 and maximum of 34 participants recruited per site).
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Inclusion and exclusion criteria
Patients meeting all the following inclusion criteria will be considered for participation in the study:
Both genders;
Age ≥ 18 years old;
Full skeletal maturity;
Life expectancy over 5 years;
Patient is requiring primary unilateral or bilateral anatomic or reverse arthroplasty based on physical examination and medical history;
Good bone quality evaluated by the Investigator on the basis of a risk factors analysis (included MORES/SCORE questionnaires) and the intraoperative evaluation;
A diagnosis in the target shoulder of one or more of the following:
Patient submitted to previous conservative non-surgical treatments;
Patient is willing and able to complete scheduled follow-up evaluations as described in the Patient Information Sheet;
Patient has participated in the Informed Consent process and has signed the Informed Consent form previously approved by the Ethics Committee.
Patients will be excluded if they meet any of the following criteria:
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78 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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