European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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To compare clinical effect and safety between posterior fossa decompression with duraplasty (PFDD) and posterior fossa decompression without duraplasty (PFD) in treatment of Chiari type I malformation and basilar impression. ⋯ PFD is a more efficient and safer therapy than PFDD in the treatment of Chiari type I malformation with basilar impression.
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Review Meta Analysis
The impact of odontoid screw fixation techniques on screw-related complications and fusion rates: a systematic review and meta-analysis.
The primary goal of this study was to conduct a systematic review and meta-analysis of articles focused on odontoid screw fixation (OSF) and screw-related complications or non-union rates. ⋯ The initial selection consisted of 683 abstracts. A total of 150 full texts were chosen for detailed study, and 83 articles were included in the analysis. The point estimates for screw-related complications were as follows: 1. screw malposition frequency-4.8%; 2. screw cut-out rate-5.0%; 3. screw loosening/pull-out-3.8%; and 4. screw fracture rate-3.1%. The point estimate for the non-union rate was 9.7%. Statistical analysis of the screw-related complications rate based on surgical technique details was also performed CONCLUSIONS: Double-screw OSF performance in elder patients resulted in a higher risk of post-operative screw cut-out. In other cases, the development of screw-related complications did not depend on the method of intraoperative head fixation, selection of the implant entry point for OSF, type of the used screws, or cannulated instruments application. The outcomes of single-screw fixation through the anterior lip of the C2 vertebra were comparable to other techniques of OSF. Further, statistically reliable studies should be carried out to identify the optimal technique of OSF.
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Review Meta Analysis
3D-printed navigation template in cervical spine fusion: a systematic review and meta-analysis.
To explore the effectiveness and advantage of three-dimensional (3D)-printed navigation templates (3DPN-template) assisted in cervical spine fusion (CSF) surgery as compared to conventional surgery. ⋯ The 3D-printed navigation template in the cervical surgery can improve accuracy of pedicle screw placement and consequently improve outcomes. In future, multi-center efforts are needed to validate the relationships found in this review.