The device history record was reviewed, and no irregularities were noted.The distortion of the disc used for trimming probably caused microcracks in this product.Because this product which was implanted(referenced in this report) was not returned to olympus terumo biomaterials corp.For evaluation, the cause of the event has not been specified. 1.Important basic precautions (3)when load bearing capacity has been weakened or reduced due to fractures, etc., osferion should only be used if the bone can be reliably immobilized by using external or internal fixations etc.Otherwise, compaction of fractures may occur.(4) if necessary, the fracture should be stabilized using external or internal fixations to prevent post-implantation migration or extrusion of the osferion due to loosening.(9) cutting wedge or trapezoids may cause cracking or inappropriate breaking, etc.This report is being submitted as a medical device report is an abundance of caution.
|
This event occurred during high tibial osteotomy.A bone viod filler(this product) broke when the surgeon in charge of the surgery was trimming it in accordance with the shape of the bone defect formed after the opening wedge osteotomy.The surgeon implanted only the intact portion of this product into the bone defect.Immediately after the implantation, however, this product cracked.The surgeon left this product at the position.(there was a distortion of the disc at the trimming.).
|