The Surgical Treatment Principles of XXXX Focusing on @entity309 .

@entity1 @entity8432 @entity309 @entity2996
Object. This retrospective review was conducted to determine the surgical treatment principle for @entity309 ( @entity309 ) @entity1 with @entity8432 ( @entity8432 ). Methods. Thirteen @entity1 with @entity8432 , including 5 @entity309 @entity1 , received preoperative computed tomography- (CT-) based @entity2996 ( @entity2996 ) in C1 lateral mass-C2 pedicle screw-rod system fixation (LC1-PC2 fixation). These 13 @entity1 were analyzed for 52 screws inserted into C1 and C2. We defined these @entity1 as non- @entity309 group (8 @entity1 , 32 screws) and @entity309 group (5 @entity1 , 20 screws). The neurological status for @entity309 group was evaluated using the Ranawat classification. The causes of @entity8432 , surgical indications, complications, surgical method revolution, and CT-based navigation application are discussed. Results. None of the 13 @entity1 expressed neurological function deterioration. The non- @entity309 group screw accuracy was 100%. In the @entity309 group, 1 @entity309 @entity1 developed left C2 screw loosening at 1(+) months after operation due to screw malposition. The screw accuracy for this group was 95%. Conclusions. Higher intraoperative surgical complication rate was described in @entity309 @entity1 . Preoperative CT-based @entity2996 in LC1-PC2 fixation can provide good neurological function and screw accuracy results. However, for higher screw accuracy in @entity309 @entity1 , intraoperative CT-based @entity2996 application may be considered.
