On the literature article named "tirobot-assisted percutaneous cannulated screw fixation in the treatment of femoral neck fractures: a minimum 2-year follow-up of 50 patients", it was reported that, after cannulated screws screw had been implanted on 12 patients, after conventional internal fixation surgery using three 7.
3 mm diameter cannulated screws to treat an unilateral femoral neck fracture, 12 patients, which had previously reported a complete fracture healing, developed avascular necrosis of the femoral head.
Further details on how was this adverse event treated are unknown.
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