Clinical Research Directory

Inclusion Criteria: * Patients 18 years or older and skeletally mature * Patients capable of understanding the surgeon's explanations and following his instructions, able and willing to participate in the follow-up program and who gave consent to take part in the study * Replacement of the proximal humerus and the glenoid articular surface of the scapula during total-, hemi- and fracture shoulder arthroplasty in treatment of the following: 1. Complex 3- and 4- part fractures of the proximal humerus with subluxation of the head fragment 2. Complex 3- and 4- part fractures of the proximal humerus with loosening of the spongiosa in the head fragment 3. Complex 3- and 4- part fractures of the proximal humerus with additional cross split of the head fragment 4. Fracture instability after osteosynthesis of 3- and 4-part fracture fragments of the proximal humerus 5. Posttraumatic necrosis of the humeral head 6. Posttraumatic arthrosis after humeral head fracture Exclusion Criteria: * Patients who are unwilling or unable to give consent, not willing to return for study required follow-up visits and/or to comply with the follow-up program. * The patient is known to be pregnant or breastfeeding * Patients who have any condition that would in the judgment of the Investigator place the patient at undue risk or interfere with the study. * Patient is a vulnerable subject (prisoner, mentally incompetent or unable to understand what participation to the study entails, a known alcohol or drug abuser, anticipated to be non-compliant). * Patients with plans to relocate during the study follow-up period * Signs of infection * Extensive stiffening of the shoulder joint without pain