MAUDE Adverse Event Report: MDT SOFAMOR DANEK PUERTO RICO MFG CD HORIZON SPINAL SYSTEM; APPLIANCE, FIXATION, SPINAL INTERLAMINAL

Catalog Number	8590855
Medical Device Problem Code	Device Slipped (1584)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Date of Event	09/08/2018
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Neither the device nor films of applicable imaging studies were returned to the manufacturer for evaluation.Therefore, we are unable to determine the definitive cause of the reported event.If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
It was reported that the patient was pre-operatively diagnosed with vertebral fracture and underwent lumbar internal fixation surgery.During surgery, the screw slipped.The product came in contact with the patient.No fragment remains in the patient.No patient symptoms or complication were reported as result of this event.The patient has achieved solid fusion.
Additional Manufacturer Narrative
Product analysis result: visual macroscopic visual and macroscopic examination revealed thread crest/flank damage; this damage appears to have initiated near the start of the thread, and is evident around the damaged portion of the thread.Functional evaluation with a sample mas head found the set screw was unable to be fully engaged.Symmetrical surface scratches across the head of the screw.The damages match the thread pattern of the screw.The above observations are consistent with misalignment of the mas and set screw threads during construct assembly.If information is provided in the future, a supplemental report will be issued.

• Brand Name: CD HORIZON SPINAL SYSTEM
• Common Device Name: APPLIANCE, FIXATION, SPINAL INTERLAMINAL
• Manufacturer (Section D): MDT SOFAMOR DANEK PUERTO RICO MFG; barrio marianna rd 909, km0.4; humacao PR 00792
• MDR Report Key: 8101022
• Report Number: 1030489-2018-01543
• Device Sequence Number: 16577886
• Product Code: KWP
• UDI-Device Identifier: 00721902365263
• UDI-Public: 00721902365263
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K981676
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 04/19/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 8590855
• Device Lot Number: H5382316
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 02/04/2019
• Initial Date Received by Manufacturer: 10/31/2018
• Supplement Date Received by Manufacturer: 03/26/2019
• Initial Report FDA Received Date: 11/26/2018
• Supplement Report FDA Received Date: 04/19/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Age: 44 YR