Figure 2From: Unilateral instrumented fixation for cervical dumbbell tumorsUnilateral pedicle screw fixation (patient number 7). (a) Plain radiography of the cervical spine of a 60-year-old man showed a positive pedicle sign at the left C4. (b) Plain radiography at the last follow-up showed a good union with no implant failure at the last follow-up. (c) Sagittal CT at the last follow-up.Back to article page