Purpose
To analyze the serial change of the cervical saggital alignment especially cobb angle from immediately post operation to 3 month of post operation, and evaluate the effect of anatomically designed pillow to restore cervical lordosis.
Materials and Methods
cervical cobb angle (C2-C7) was measured in 38 patients whose radiographs at immediately post op, post op 1mo and post op 3mo were completely equipped. The patient group consisted of 10 patients in the general pillow group, 19 patients in the cervical pillow group, and 9 patients in the Philadelphia orthosis group.
Results
There was no statistically significant difference between the two groups using any pillow and the group using Philadelphia orthosis. Among them, patients who used anatomically designed pillow for 1 month to 3 months postoperatively were more likely to have lordotic change than the other patients, though it was not statistically significant.
Conclusion
The use of a cervical orthosis until the first month after the operation and subsequently anatomically degsined pillow for up to 3 months may be considered as a way to maintain lordotic curvature and prevent kyphotic changes.

Objectives
To evaluate the effectiveness of a prototype plate and cage device (PCB) in cervical spine disease.
Summary of Background
Data: Several Cage-Screw implants have recently been developed to avoid cervical platerelated complications.
Methods
A total of 34 patients with cervical disc protrusion who underwent PCB implantation between 2004 and 2007 were included in the study. There were 22 males and 12 females with a mean age of 49.9 years (range: 30 to 62 years). Odom’s Criteria were evaluated in all patients for a minimum follow-up period of 1 year (mean 24.6 months). Radiographic evaluation was performed to assess the status of fusion, intervertebral disc height, cervical lordosis and segmental kyphosis.
Results
In general, there were 20 excellent cases, 10 good cases and 4 fair cases according to Odom’s Criteria. In terms of radiological results, the height of intervertebral disc space was measured three different times, as follows: pre-operation, mean 6.07 mm; post-operation, mean 9.52 mm; last follow-up, mean 8.74 mm. No patients showed segmental instability on flexion-extension view at the last follow-up appointment. There were no cases of screw back out or device failure and no donor site morbidity.
Conclusion
PCB implant for degenerative cervical disease may restore intervertebral disc space and lordotic angle of the cervical spine without significant complications.