MAUDE Adverse Event Report: SMITH & NEPHEW, INC. REF SPHER HEAD SCREW 25MM; PROSTH, HIP, SEMI-CONSTRA, UNCEMENT, METAL/POLY, NON-POROUS, CALICUM-PHOSPHATE

Catalog Number 71332525

Device Problem Migration or Expulsion of Device (1395)

Patient Problem Injury (2348)

Event Date 02/20/2019

Event Type  Injury  

Event Description

It was reported that upon reviewing post op xrays immediately following closure on a primary hip replacement, it was found that one (possibly both) screws implanted during the case are disassociated with the r3 cup.Two screws were put in respectively.Each look to be intact from the post op x-ray.This suggests that the screws went through the r3 cup.Neither the fellow or attending operating applied abnormal amounts of force when implanting the screws.

Manufacturer Narrative

The associated r3 3 hole acetabular shell and reflection spherical head cancellous screws were not made available for investigation.However, device details were provided.Thus, a review of the manufacturing records and complaint history was conducted.The review of the manufacturing records for the listed batches did not reveal any deviation from the standard manufacturing processes.A review of complaint history of the listed parts revealed no prior complaints for the listed failure mode with the same batch number.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.As devices were not returned for analysis, the failure mode cannot be determined.A relationship, if any, between the device and the reported incident or adverse event could not be corroborated.Without the return of the actual products involved, our investigation of this report is inconclusive.Our clinical evaluation noted the provided x-rays confirms the reported issue.A procedural variance, additional trauma, bone quality, body habitus, or comorbidities as contributing factors to the reported event cannot be ruled out.It is currently unknown if the patient is experiencing pain.The future impact to the patient cannot be determined.No further investigation warranted for this complaint; however we will continue to monitor for future complaints and investigate as necessary.Should additional information be received, the complaint will be reopened.

• Brand Name: REF SPHER HEAD SCREW 25MM
• Type of Device: PROSTH, HIP, SEMI-CONSTRA, UNCEMENT, METAL/POLY, NON-POROUS, CALICUM-PHOSPHATE
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks road; memphis TN 38116
• MDR Report Key: 8417292
• MDR Text Key: 138684621
• Report Number: 1020279-2019-01058
• Device Sequence Number: 1
• Product Code: MEH
• UDI-Device Identifier: 03596010460462
• UDI-Public: 03596010460462
• Combination Product (y/n): N
• PMA/PMN Number: K990666
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,health
• Type of Report: Initial,Followup
• Report Date: 05/18/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 03/13/2019
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Catalogue Number: 71332525
• Device Lot Number: 18HB00117
• Date Manufacturer Received: 02/20/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1