PMC2820442_01
Image of unthreaded screw at time of surgery.
1757-1626-3-9-2.jpg
PMC2820442_01_1757-1626-3-9-2.jpg
F2
When the 5.0 mm superior-inferior cannulated screw was inserted, use of the image intensifier to confirm the final screw position revealed that the screw thread had unwound itself by 21/2 complete revolutions (Figure 2).
Image of unthreaded screw 3 weeks following surgery.
1757-1626-3-9-3.jpg
PMC2820442_01_1757-1626-3-9-3.jpg
F3
X-rays taken 3 weeks post-operatively(Figure 3) showed that the fracture had shifted slightly, but as the patient was comfortable and remained neurovascularly intact, a decision was made to gently mobilise the patient.