The i.B.S compression and neutralization osteosynthesis screws are intended for: the fixation of arthrodesis, osteotomies or fractures of long or short bones of the upper and lower limbs; osteosynthesis requiring a mono or bicortical compression.The 4.5mm diameter screws are to be implanted thanks to t15 reusable screwdrivers.Event description: during a patella surgery, the tip of two reusable t15 screwdrivers twisted, leading the surgeon to use more strength than usual to implant the screws.The surgery ended successfully without any consequences for the patient.This event is reportable, since the distributor estimated that it induced a significant increase in the surgery duration (estimated to be of more than 30 minutes but less than one hour).
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