MAUDE Adverse Event Report: SMITH & NEPHEW, INC. REF SPHER HEAD SCREW 25MM; PRSTHSIS,HIP,SMI-CNSTRAIND,UNCMNTD,MTAL/PLYMR,NN-PORS,CALICUM-PHSPHTE

Catalog Number	71332525
Medical Device Problem Code	Insufficient Device Problem Information (3190)
Health Effect - Clinical Code	Joint Dislocation (2374)
Date of Event	03/29/2018
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that a revision surgery was performed due to loosening and dislocation of the cup.The acetabular shell, the liner, the femoral head and the head screw were explanted.
Additional Manufacturer Narrative
The associated complaint devices were not returned.A clinical analysis indicated that based on the limited information provided and the absence of the explanted devices, the root cause of the dislocation cannot be concluded.However, the surgeon indicated that this was a ¿technical issue¿ and not the result of product failure.The impact to the patient beyond the expected pain from the revision procedure itself cannot be concluded.No further medical assessment is warranted at this time.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history on the listed parts revealed no prior complaints for the listed batches.Without the actual product involved our investigation cannot proceed.No further investigation is warranted for this complaint; however we will continue to monitor for future complaints and investigate further as necessary.

• Brand Name: REF SPHER HEAD SCREW 25MM
• Common Device Name: PRSTHSIS,HIP,SMI-CNSTRAIND,UNCMNTD,MTAL/PLYMR,NN-PORS,CALICUM-PHSPHTE
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks road; memphis TN 38116
• MDR Report Key: 7608424
• Report Number: 1020279-2018-01141
• Device Sequence Number: 19143043
• Product Code: MEH
• UDI-Device Identifier: 03596010460462
• UDI-Public: 03596010460462
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K990666
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2018
• Device Explanted Year: 2018
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 01/22/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Catalogue Number: 71332525
• Device Lot Number: 17GB00641
• Was Device Available for Evaluation?: No
• Initial Date Received by Manufacturer: 06/01/2018
• Supplement Date Received by Manufacturer: 06/01/2018
• Initial Report FDA Received Date: 06/16/2018
• Supplement Report FDA Received Date: 01/22/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other; Required Intervention