|
Additional information: g3, h3, h6.The complaint is confirmed based on the customer attached picture that displays two expandable reamer with the qc adapter detached/broken off the guide tube.Based on the information provided, which may include the device (if available and returned), pictures, videos, event descriptions, and any additional information from the field, arthrex concluded that the most likely cause.The most likely cause of the reported failure is user error due to applying excessive torque force.The expandable reamer should only be expanded one or two clicks at a time by turning the knurled knob clockwise.According to the core decompression for avascular necrosis of the hip using an expandable reamer surgical technique.9.Hold the expandable reamer just below the black knob (a).Insert the reamer through the 5 mm drill sleeve and advance to the proximal end of the socket.With one hand, grip the t-handle and open the blade with the other by twisting clockwise until a click is felt.Rotate the expandable reamer clockwise and counterclockwise until there is no resistance.Note: the expandable reamer should only be expanded one or two clicks at a time by turning the knurled knob clockwise.10.Incrementally adjust the expandable reamer one click at a time until the desired socket diameter is achieved to remove all of the necrotic bone.If the expandable blade is opened too far initially, then the blade may experience too much torque and may not cut effectively.Note: check the blade under fluoroscopy to ensure the cartilage is not violated.11a.If too much torque is encountered in the bone, the torque limiter will engage and not allow the blade to spin inside the socket.If this happens, reduce the diameter of the cutting blade by pushing the knurled knob forward and twisting counterclockwise.Once the blade turns easily, expand the blade one or two clicks at a time and rotate the reamer by hand until the necrotic bone is removed.If the torque limiter continues to prevent cutting, remove the expandable reamer and lavage the socket.To retract the blade inside the expandable reamer, push up on the knurled portion and twist counterclockwise until the white laser line is at the fully closed position to the left edge of the 6 setting.
|