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Investigation results were made available.1.Event description: it was reported that initial right total hip arthroplasty was performed (b)(6) 2021.Subsequently, it was reported that the patient experienced postop pneumonitis requiring additional intervention and prolonged hospitalization.The complication resolved by postop day 2.Upon follow up, the patient had minimal pain and problems and was very satisfied harm: s3 - infection, moderate localized hazardous situation: unknown.2.Review of received data: due diligence: further due diligence to support the conclusion was completed and documented.Surgical report: several documents have been provided for review.(b)(6) 2020: pre-op examination.No information related to the reported event provided.(b)(6) 2020: surgery scheduling document: no information related to the reported event provided.(b)(6) 2021: implantation report: anesthesia record: anesthesia post evaluation: patient informed that likely aspirated due to left lung pneumonia on cxr.(b)(6) 2021: case report: no information related to the reported event provided.(b)(6) 2021: hospital consultation: at risk for respiratory complications from intubation and respiratory suppression from opioids postop.Possible aspiration: patient with possible aspiration in or.Mild cough in pacu, no fevers or chills.Cxr with possible left infiltrate, noted again today.Wbc noted at 20k but no bandemia.Still on oxygen this morning.Looks good but with wbc and persistence of possible infiltrate will place on cefepime.Could be noninfectious (pneumonitis).(b)(6) 2021: physical therapy: no information related to the reported event provided.(b)(6) 2021: discharge summary: no information related to the reported event provided.(b)(6) 2021: 1m post op exam: no information related to the reported event provided.(b)(6) 2021: 3m post op exam: no information related to the reported event provided.3.Product evaluation: no product was returned; therefore, visual and dimensional evaluation could not be performed.4.Review of product documentation: device purpose: this device is intended for treatment.Product compatibility: the product combination was approved by zimmer biomet.Dhr review: review of the device history records identified no deviations or anomalies during manufacturing.Sterilization certificate: the eto/ gamma sterilization specification of the device certifies the suitability of sterilization.5.Conclusion: it was reported that initial right total hip arthroplasty was performed (b)(6) 2021.Subsequently, it was reported that the patient experienced postop pneumonitis requiring additional intervention and prolonged hospitalization.The complication resolved by postop day 2.Upon follow up, the patient had minimal pain and problems and was very satisfied based on the investigation the reported event can be confirmed.Within anethesia record of implantation procedure it is stated that the patient was informed that he likely aspirated due to left lung pneumonia on cxr.The quality records show that all specified characteristics have met the specifications valid at the time of production.Therefore, the investigation did not identify a nonconformance or a complaint out of box (coob).Also, within the provided clinical information there is no aspect which points into the directed that the reported device caused or contributed to the reported event.Based on the given information and the results of the investigation, we were not able to identify a specific root cause for this issue.However, the most likely root cause for the reported error pattern is aspiration during implantation.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 is (b)(4).
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