|
|
| Catalog Number |
74122550 |
| Medical Device Problem Code |
Biocompatibility (2886)
|
| Health Effect - Clinical Codes |
Pain (1994); Loss of Range of Motion (2032); Metal Related Pathology (4530)
|
| Date of Event |
01/03/2024
|
|
Type of Reportable Event
|
Serious Injury
|
|
Additional Manufacturer Narrative
|
|
Internal reference number: (b)(4).H10: smith & nephew is submitting this report pursuant to the provisions of 21 c.F.R.Part 803.This report may be based upon information which smith & nephew has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, smith & nephew, or its employees, that the report constitutes an admission that the device, smith & nephew or its employees caused or contributed to the potential event described in this report.
|
| |
|
Event or Problem Description
|
|
It was reported that, a patient underwent a left primary bhr-tha on (b)(6) 2008.Later had onset of pain for several years; patient was diagnosed with metallosis, and became functionally disabling in the activities of daily living.Musculoskeletal ros was positive for decrease range of motion, joint pain, joint swelling and stiff joints.Therefore, a revision surgery was performed on (b)(6) 2024, during which the shell and stem were found to be stable, so the hip was converted into a birmingham dual mobility with an oxinium femoral head.The patient was awakened from anesthesia after surgery.No other complications were reported.
|
| |
|
Additional Manufacturer Narrative
|
|
H6: it was reported that, a patient underwent a left primary bhr-total hip arthroplasty.Later had onset of pain for several years; patient was diagnosed with metallosis, and became functionally disabling in the activities of daily living.Musculoskeletal ros was positive for decrease range of motion, joint pain, joint swelling and stiff joints.Therefore, a revision surgery was performed during which the shell and stem were found to be stable, so the hip was converted into a birmingham dual mobility with an oxinium femoral head.The patient was awakened from anesthesia after surgery.No other complications were reported.As of today, the implanted devices, all of which were used in treatment have not been returned for evaluation.A review of the historical complaints data for the alleged devices was performed using batch numbers, part numbers and the reported failure modes to evaluate patterns of repeated failures or defects.Similar complaints have been identified for the head and cup and none for the sleeve.This failure will continue to be monitored for the cup and will continue to be monitored via routine trending for the head and sleeve, however it should be noted that these devices are no longer sold.In the absence of the actual devices, the production records were reviewed for the devices reportedly involved in this incident.All released devices involved met manufacturing specifications upon release for distribution.The review of the product ifu found adequate warnings and precautions in relation to the alleged failure modes.A risk management review was performed.The alleged failure modes and associated risks have been anticipated within the risk file and the anticipated risk level is still adequate.No further actions are required at this time.A review of historic escalation actions related to the products and similar complaint events was performed.Following the review, prior applicable escalation actions were identified and confirmed to reduce associated risks as far as possible.No further escalation actions are required.The available medical documents were reviewed.A clinical root cause could not be determined.The bhr surgical technique (01/07 4567-0103) indicates the acetabular component is to be impacted with 15-20° of anteversion and 40-45° inclination angle.The patient impact beyond the reported revision could not be determined.Based on the information provided, further investigation of the reported complaint cannot be carried out and remains inconclusive.A definitive root cause cannot be determined.Specific factors known to contribute to the alleged fault are excessive physical activity levels, unreasonable stress on replacement system, excessive patient weight, trauma to the joint replacement, loosening of components may increase production of wear particles and accelerate damage to the bone.Should the devices or additional information be received, the complaint will be reopened.Based on this investigation, the need for corrective and preventative actions is not indicated.
|
| |
|
Search Alerts/Recalls
|
|
|