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Labelling review and risk assessment.Visual, dimensional, functional and materials analysis could not be performed as the device remains implanted in patient.It was confirmed during surgery that the plate securing mechanism broke intra-op.It was reported that the surgeon decided to use the same plate which remains implanted in the patient.Manufacturing record review and complaint history review could not be performed because lot number was not provided.It was reported that the variable drill guides were used, the plate was inspected prior to surgery, and was placed and removed once before final placement it appears that the surgical technique was followed, so the potential causes may be: - excessive torsional force/cantilever force applied - screw not fully seated below spring-bar - stripped screw head/screwdriver tip however a definite root cause cannot be determined at this time.Intra-operative precautions ¿ the insertion of the implants must be carried out using instruments designed and provided for this purpose and in accordance with the specific implantation instructions for each implant.Those detailed instructions are provided in the surgical technique brochure supplied by stryker spine.¿ discard all damaged or mishandled implants.¿ stryker spine implants must not be reshaped, unless otherwise indicated in the surgical technique instructions.When implants need to be bent, the bending must be carried out gradually using the appropriate instruments, provided by stryker spine.The use of inappropriate instruments may result in scratches, notches, and sharp bending, causing the breakage of the implants.Improper seating of the implant may result in implant failure.¿ never reuse an implant, even though it may appear undamaged.¿ do not mix metals.
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