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Objective:By retrospective analysis, comparative study to evaluate the efficacy of Apofix and pedicle screw technique in traumatic atlantoaxial instability.Methods:From November 2004 to May 2010, among 113 cases of traumatic atlantoaxial instability in patients with successful implementation of the operation in our hospital, of which posterior decompression, internal fixation, bone graft fusion were screened, There are 72 patients, divided into Apofix group and pedicle screw group, Through the perioperative parameters, reset effect, stability and fusion rate of complications were statistically compared to evaluate differences in efficacy between the two.Results:In the operation time, blood loss, postoperative suction drainage suction drainage tube and postoperative extubation time, Apofix group of more than pedicle screw group, the difference was statistically significant (P< 0.05). Two groups were no increased spinal cord injuries, internal Fixed broken, malunion, radicular pain, etc.; However, Reduction effect in pedicle screw group (97.83%) than Apofix group (34.62%) has obvious advantages, the difference was statistically significant (P<0.05); including the incidence of loosening Apofix group (19.23%) than pedicle screw group (2.17%) high, the difference was statistically significant (P<0.05); the incidence of bone graft not fusion and delayed healing, Apofix group (19.23%) than in the pedicle screw group (0.00%) were significantly different (P<0.05); overall, postoperative complications Apofix group (8.46%) than in the pedicle group (0.88%), the difference was significant (P<0.05). Associated with spinal nerve compression symptoms of postoperative neurological recovery and improvement rate of JOA score was no significant difference (P> 0.05).Conclusion:Both fixation type recovery in the spinal cord was no significant difference, but the type of pedicle screw fixation is superior to Apofix fixation type in terms of reset effect, stability(the incidence of internal fixation loosening), fusion rate, parts of perioperative parameters and the total complications, etc.
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