ZIMMER SWITZERLAND MANUFACTURING GMBH ANATOMICAL SHOULDER, HUMERAL STEM, UNCEMENTED, 14, 100 MM; SHOULDER PROSTHESIS, REVERSE CONFIGURATION
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Model Number N/A |
Device Problem
Patient Device Interaction Problem (4001)
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Patient Problems
Ossification (1428); Failure of Implant (1924); Pain (1994); Loss of Range of Motion (2032); Osteolysis (2377)
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Event Date 05/12/2023 |
Event Type
Injury
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Event Description
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It was reported that the patient underwent initial shoulder surgery.Post-operative grade iv glenoid radiolucency with osteolysis in zones 1-3, osteophytes, and grade iii heterotopic ossification were diagnosed approximately three (3) years after surgery.Revision surgery is planned.Due diligence is in progress for this complaint; to date no additional information or product has been received.
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Manufacturer Narrative
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(b)(4); report source foreign ¿ switzerland.Anatomical shoulder domelock, dome, centric item#0104227005 lot#2992775 anatomical shoulder domelock, humeral head, 50-21, r=27.6mm item#0104213505 lot#2867923 anatomical shoulder, glenoid, pegged, cemented, m item#0104214370 lot#2993482 multiple mdr reports were filed for this event, please see associated reports: 0009613350-2023-00241, 0009613350-2023-00242, 0009613350-2023-00243; the device will not be returned for analysis; however, an investigation of the reported event is in progress.Once the investigation is completed, a supplemental medwatch 3500a will be submitted.
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Event Description
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No further event information available at the time of this report.
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Manufacturer Narrative
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(b)(4).This follow-up report is being submitted to relay additional and corrected information.D10: anatomical shoulder domelock, dome, centric item#: 01.04227.005, lot#: 2992775.Anatomical shoulder domelock, humeral head, 50-21, r=27.6mm item#: 01.04213.505, lot#: 2867923.Anatomical shoulder, glenoid, pegged, cemented, m item#: 01.04214.370, lot#: 2993482.Unknown bone cement.Initial bilateral anatomic total shoulder arthroplasties were performed at the three year follow up visit for the left side, grade iv glenoid radiolucency with osteolysis in zones 1-3, osteophytes, and grade iii heterotopic ossification were noted on x-ray.The patient also reported decreased strength, range of motion, and satisfaction with moderate-severe pain.Subsequently revised 3 years later.During the revision the glenosphere was loose, the stem was well intact and remained implanted.The glenoid, shell, liner were exchanged without complication.No product were returned or pictures provided; visual and dimensional evaluations could not be performed.A review of the device manufacturing records confirmed no abnormalities or deviations. devices are used for treatment.The reported products were reviewed for compatibility with no issues noted. review of complaint history for the stem, dome and liner identified additional similar complaints for the reported items and part and lot combinations.Complaints are monitored through monthly complaint review (reference: (b)(4) in order to identify potential adverse trends.Review of complaint history for the humeral head found no additional related issues for this item and the reported part and lot combination. crf report as well as the surgical report for revision surgery were received and reviewed by the nurse review group (hcp), for which a timeline report was created.The following findings were noted during initial implantation: sclerotic bone, large osteophytes, rotator cuff intact, subscap and capsule releases, no intraop complications noted, pressfit stem, cemented glenoid, discharged postop day 5, pt started, mobilized within 24 hours of surgery.Six radiographic images of the left shoulder were provided and assessed by mri (hcp - radiologist) with the following assessment: 2020: normal alignment of the left glenohumeral arthroplasty.2022: there is early osteolysis along the glenoid implant and at the proximal humeral bone-metal interface.2023: there is marked progression of the proximal humeral osteolysis and more mild progression of the glenoid osteolysis.The following impressions were additionally provided: initial normal appearance of bilateral shoulder arthroplasties with progressive development of advanced bilateral implant osteolysis as noted, greater at the humeral implants.While there is no implant displacement to confirm loosening, the degree of bilateral humeral osteolysis would suggest early loosening.Overall alignment is maintained.Bone quality appears mildly osteopenic.Based on the given information and the results of the investigation, a definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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