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Concomitant medical products: wagner sl revision, screw for trial stem, l 225; item# 0100109805; lot# 99999999.The manufacturer did not receive x-rays for review.Other source documents were received and will be reviewed as part of ongoing investigation.The device was received, the investigation is pending.The device history records were reviewed and found to be conforming.A cause for this specific event cannot be ascertained from the information provided.As soon as supplemental information becomes available an updated report will be submitted.Zimmer biomet¿s reference number of this file is (b)(4).
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During a revision surgery, it was reported that while removing the locking screw it fractured when a slap hammer was used to remove it which was left in the provisional.There was a surgical delay of 30 minutes to remove the other half of fractured screw from the patient.The screw was completely removed from patient.No pieces of the fractured device, no foreign body remaining in the patient.Note: the implantation and explantation dates are left empty as the device involved in this complaint is an instrument.Hence, no expiration date is captured, for the same reason.
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Investigation results were made available.Additional: d10, h2, h6 correction: b4, b5, d9, g3, g6, h3, h10.1.Event description: it was reported that during revision surgery on (b)(6) 2021 the locking screw of the trial stem fractured.There was a surgical delay of 30 minutes to remove the other half of the trial stem from the patient.Finally, no pieces of the device remained in the patient.Harm: s3 - exposure to anesthesia, moderate hazardous situation: instrument breaks, diverges or becomes damaged and non-functional during surgical procedure.2.Review of received data: no medical data relevant to the case has been received.Due diligence: no further due diligence required as all required information to support the conclusion is available or was already requested.3.Product evaluation: visual examination: the distal trial stem and the fractured trial screw were returned.The loose screw part is marked with 225.The other part of the screw is still in the distal trial stem.The fracture surfaces indicate a ductile fracture.The distal trial stem has extensive damage in the form of a drill hole, scratches, and indentations that can be attributed to the removal during surgery.4.Review of product documentation: device purpose: this device is intended for treatment.Dhr review: review of the device history record of the trial stem identified no deviations or anomalies during manufacturing.Review of the trial screw was not possible due to unknown lot.5.Conclusion: it was reported that during revision surgery on (b)(6), 2021 the locking screw of the trial stem fractured.There was a surgical delay of 30 minutes to remove the other half of the trial stem from the patient.Finally, no pieces of the device remained in the patient.Based on the visual examination, the reported event can be confirmed.The investigation did not identify a nonconformance or a complaint out of box (coob).The trial screw 225 must be used together with the proximal trial stem size 225.Since the device identification of the proximal trial stem was not specified, the compatibility of these two parts could not be verified.Therefore, the reason for the screw fracture could not be determined.The need for corrective measures is not indicated and zimmer switzerland manufacturing gmbh considers this case as closed.Zimmer biomet's reference number of this file (b)(4).The following reports are associated with this event: 0009613350-2021-00230-1.
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