Comparative Results Between C1 pedicle screw and C1 lateral mass screw
10.3760/cma.j.issn.0253-2352.2011.12.001
- VernacularTitle:寰椎椎弓根螺钉和侧块螺钉技术的临床疗效比较
- Author:
Dingjun HAO
;
Baorong HE
;
Zhengwei XU
;
Hua GUO
;
Tuanjiang LIU
;
Xiaodong WANG
- Publication Type:Journal Article
- Keywords:
Atlas;
Spinal fusion;
Internal fixators;
Treatment outcome
- From:
Chinese Journal of Orthopaedics
2011;31(12):1297-1303
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo compare the clinical outcomes of C1 pedicle screw with C1 lateral mass screw.MethodsFrom Jan 2006 to Jan 2010,60 cases with atlantoaxial instability were randomly divided into two groups:32 cases underwent posterior C1 pedicle screw fixation (the pedicle group) and 28 cases underwent posterior C1 lateral mass screw fixation (the lateral mass group).Patients were followed up at regular intervals.The blood loss,the time of the operation,the JOA Score,VAS Score,and the bone fusion rate were recorded.ResultsAll cases were followed up for an average of 46.6 months (range,12 to 60 months).Bone fusion were achieved 6 month after operations.There were no loose or breakage of screw-rod.Atlantoaxial re-instability was not found in the series.At the last followed up time,the JOA score and VAS score of pedicle group had respectively improved from 7.1±2.8 and 3.0±1.2 preoperatively to 13.3±2.1 and 1.8±0.9 postoperatively; The JOA score and VAS score of lateral mass group had respectively improved from 7.3±2.4 and 3.2±1.0 preoperatively to 13.0±2.6 and 1.9±1.0 postoperatively.There was no difference in JOA Score,VAS Score,and the bone fusion rate between two groups.There were significant difference in blood loss,the time of the operation.Fracture of posterior arch were observed in 2 cases in the pedicle group,and in the lateral mass group,pain and numbness of cervic-occipital region were observed in 3 cases after operation.ConclusionC1 pedicle screw fixation is less invasive and safe technique.Lateral mass screw fixation is a wise option for atlantoaxial instability.
