The reported event was not confirmed since the devices were not returned for evaluation and no other evidences were provided.Since this event is a particular issue, the opinion of the medical expert was requested with the limited information available and stated as following: "the patient was enrolled in the shout program to undergo the implantation of the tornier flex shoulder system humeral stem (dwf605b) and humeral head (dwf046) as part of a revision surgery for a previous competitor's hemiarthroplasty device.The presence of heterotopic ossification (ae) doesn't necessarily serve as a sole indication for revision.Localized heterotopic ossification is typically associated with the surgical procedure itself.Not with the device.If the ossified soft tissue mass causes clinical concerns such as restricted shoulder movement or pain, it might necessitate a re-operation (rather than a revision) to excise the ossified tissue.Other findings, such as some lateral cortex deformity, osteolysis along the lateral metaphyseal section of the component, superior humeral migration (indicating upward movement of the humerus, consequently causing the device to move upward as well), and significant glenoid erosion, point to the progression of rotator cuff insufficiency and glenoid erosion.These developments can be viewed as a natural progression of the underlying condition, which is the most plausible reason for the need for revision".A device inspection was not possible since the affected devices were not returned.A review of the device history was not possible because the lot number was not communicated.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.Indications of material, manufacturing, or design related problems were unable to be identified as the lot number was not communicated.More detailed information about the complaint event as well as the affected devices (images/x-rays, clinical reports, devices ¿) must be available in order to determine clearly the exact root cause of the complaint event.If any additional information is provided, the investigation will be reassessed.
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