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The reason for this revision surgery was due to loosening.The previous surgery and the revision detailed in this investigation occurred 1 year and 2 months apart.There is no information in this complaint about any patient injuries, activities, or accidents that may have contributed to the need for this revision surgery.There are no reported pre-existing patient health conditions.Initial or prolonged hospitalization was required.The healthcare professional indicated there was no delay in surgery and another suitable device was available for use.The revision surgery was completed as intended.The device was disposed of at the hospital and not made available to djo surgical for examination.A review of the implant device history records (dhr) shows that the reported component used in the previous surgery met design and manufacturing requirements.There was a non conforming material report (ncmr) #34366 associated with the concomitant part 530-06-175, encore reverse shoulder humeral stem, standard, size 6x175millimeter that out of 10 quantity lot, 1 item was rejected and scrapped due to out of tolerance dimension.All other 9 items were accepted.All other items in the lot met the design, fit and function requirements.The device and its applicable concomitant devices were within their respective expiration dates at the time of use during the previous surgery.Customer complaint history of the reported device showed no present trends or on-going issues that are in need of review.The root cause of this complaint was a revision surgery due to loosening.There were no findings during this investigation that indicate that the reported device was the source or had a direct connection with the patient's event.There are many factors that may contribute to the event that are outside the control of djo surgical such as: patient age, inadequate soft tissue support, degenerative bone disease, patient bone deterioration, excessive range of motion, patient activities or trauma.Inventory containment is not required as there are no indications of a product or process issue affecting implant safety or effectiveness.
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