It was reported that during an anterior cruciate ligament surgery, when drilling the tibia, the flipcutter performed well drilling forward.It flipped to 90 degrees inside the joint.However, when drilling backwards the doctor said it didn't feel right.When he advanced forward into the joint the flip was no longer at 90 degrees.He did this two more times with same result.The flipcutter was placed inside the drill with enough room on the stem so it would flip properly.There was no harm for patient, operator or third party.The surgery was finished successfully with a different device.It was not necessary to switch the surgical technique or do a second surgery.
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