MAUDE Adverse Event Report: SI-BONE, INC. IFUSE IMPLANT SYSTEM; ORTHOPEDIC ROD

Model Number	7045M-90
Medical Device Problem Code	Loss of Osseointegration (2408)
Health Effect - Clinical Code	Arthralgia (2355)
Date of Event	04/12/2021
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Based on the information provided, review of the surgical technique manual, ifu, certificates of conformance and fmea, there is no indication of device failure and no indication that the device was out of specification.The most probable root cause is implant late loosening.The patient's later hip replacement may have contributed to the possible implant loosening.
Event or Problem Description
The patient had left si joint arthrodesis in (b)(6) 2020 where three implants were installed.The patient had good si joint relief following the initial procedure, but later reported a recurrence of pain symptoms after hip replacement surgery.The surgeon determined possible loosening of the middle and inferior positioned implants.In (b)(6) 2021, the surgeon performed a revision procedure where he removed the inferior positioned implant using chisels as it was solidly fixed in bone, and installed a new, wider, implant of the same type in the explant void.The explanted implant had very good bone on-growth.He then attempted to remove the middle positioned implant, but it was also solidly fixed in bone and would not move, so he left it in place.No other preexisting implants were adjusted or removed.The status of the patient following the revision procedure is not known.

• Brand Name: IFUSE IMPLANT SYSTEM
• Common Device Name: ORTHOPEDIC ROD
• Manufacturer (Section D): SI-BONE, INC.; 471 el camino real; suite 101; santa clara CA 95050 4482
• MDR Report Key: 11809854
• Report Number: 3007700286-2021-00041
• Device Sequence Number: 3237159
• Product Code: OUR
• UDI-Device Identifier: 00851085007350
• UDI-Public: 00851085007350
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: K193524
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2020
• Device Explanted Year: 2021
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: company representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 05/07/2021

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 Expiration Date: 09/09/2024
• Device Model Number: 7045M-90
• Device Lot Number: 2692111
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/12/2021
• Initial Report FDA Received Date: 05/11/2021
• 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
• Patient Age: 56 YR