The study is a monocentric, retrospective and prospective, non-randomized, non-controlled and consecutive series post-market study. The purpose of this study is to collect long-term data confirming safety, performance and clinical benefits of the Anatomical Shoulder Bipolar System (Implants and Instrumentation) when used as a salvage solution in shoulder replacement.
The primary objective is the assessment of safety by analyzing implant survivorship. This will be established by recording the incidence and frequency of revisions, complications and adverse events. Relation of the events to implant, instrumentation and/or procedure should be specified.
The secondary objective is the assessment of performance and clinical benefits by recording patient-reported clinical outcome measures (PROMs) as well as radiographic outcomes.
The Anatomical Should Bipolar Adaptor is indicated for hemi shoulder replacement as a salvage solution in situations, where a Zimmer Anatomical Shoulder Inverse/Reverse prosthesis was originally planned, but it is intra-operatively found that the attachment of the Zimmer Anatomical Shoulder Inverse/Reverse glenoid fixation is not possible
Patient should have received the Anatomical Shoulder Bipolar System
Patient should have signed the Informed Consent Form
Patient is 18-100 years of age, inclusive
Patients who are not willing to return for study required follow-up visits and/or are not willing to comply with the follow-up schedule
Patients who have any condition which would in the judgement of the Investigator place the patient at undue risk or interfere with the study. Any patient who is institutionalized, or is a known drug abuser, a known alcoholic or anyone who cannot understand what is required of them
Patient is known to be pregnant or breastfeeding
Musculoskeletal situation that enables the application of a regular hemi or total shoulder system
The study population will be comprised of a consecutive series of cases implanted with the Anatomical Shoulder Bipolar System according to Zimmer Biomet's Instruction for Use (IFU) and who meet the inclusion criteria and none of the exclusion criteria.
Cohort
Other
Not listed
Incidence and frequency of revisions [Product safety based on implant survivorship]
Safety will be assessed by recording and analyzing the incidence and frequency of revisions, complications and adverse events. A Kaplan Meier survival curve will be calculated.
Constant and Murley Score
The patient will be evaluated at each interval (1, 2, 5, 7, 10 years) The Constant and Murley score is a 100-point functional shoulder assessment tool in which higher scores reflect increased function. The subjective variables are pain (15 points) and function (activities of daily living - sleep, work, recreation/sport; 20 points), for a total of 35 points. The objective variables are active range of motion (clinician assessment; 40 points) and strength (25 points), for a total of 65 points.
Oxford Shoulder Score
The patient will be evaluated at each interval (1, 2, 5, 7, 10 years) The OSS is a self-assessment of shoulder pain and function with 12 items; pain (2), interference with pain (2), and daily functions (8). Each response is answered with a five point Likert scale. The total score is the sum of the 12 items, with lower scores indicating a more favorable outcome.
EuroQol Five Dimensions Questionnaire
The patient will be evaluated at each interval (1, 2, 5, 7, 10 years) The EQ-5D measures 5 dimensions; mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, with a total of 5 questions. It is accompanied by the patient's self-assessment with the VAS. Each dimension is assigned one of three discrete levels for evaluation on the day of administration: Level 1 - No problems, no disability Level 2 - Some problems, moderate disability Level 3 - A lot of problems, severe disability The final score is a five digit composite of the responses ranging between 33333 - 11111 with 243 possible combinations in between.
X-rays
Performance and clinical benefits will be assessed by radiographic evaluation. Radiographs (A/P and axillary view) of the operated shoulder will be taken at each interval.
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