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  • Title: Cement Augmentation of the Cervical Spine - a Technique Enhancing Stability of Anterior Cervical Plating.
    Author: Bayley E, Klezl Z, Bommiredy R, Klezl Z.
    Journal: Acta Chir Orthop Traumatol Cech; 2017; 84(6):448-452. PubMed ID: 29351528.
    Abstract:
    PURPOSE OF THE STUDY The aim of this study is to describe a new technique for cement augmentation of primary anterior cervical screw fixation in the sub-axial cervical spine. MATERIAL AND METHODS Seven patients underwent anterior cervical spine surgery for trauma (two) or tumor infiltration (five) between 2008 and 2015. The tumor cases underwent corpectomy and anterior plating, with the trauma cases undergoing anterior cervical decompression and fusion using iliac crest bone graft. All surgeries were performed through the standard anterior approach. 0.2-0.25 ml of Kyphon cement were introduced into the screw holes before the screws were locked into the plate of the anterior construct. Karnofsky Index, Spinal Instability Neoplastic score (SINS) were calculated and radiographic follow-up performed. RESULTS Median follow-up was 7 months (range 7 weeks-39 months). There were no complications from cement leakage or construct failure during the follow-up period. There were no wound infections or approach-related complications. We did not have to re-operate on any patient, cervical spine remained stable until the end of follow up. DISCUSSION Until now a limited number of papers on cement augmentation of cervical spine mainly dealt with revision surgeries, when cement was used as rescue technique to re-establish stability of previous fixation or cement augmentation was performed in form of vertebroplasty following plate fixation. Our technique intends to prevent revision surgeries and to anchor all screws in holes which are evenly filled with bone cement. CONCLUSIONS This technique of cement augmentation is a useful adjunct in those few patients where a secondary posterior surgery would be high-risk due to the general health of the patient, or when life expectancy is limited. We have shown that anterior alone reconstruction of the cervical spine with cement augmentation of screws did provide sufficient and sufficiently long stability of the cervical spine which prevented catastrophic collapse and quadriplegia in patients in poor general condition. Key words: cement augmentation, cervical spine, corpectomy, tumor, stabilization, fusion.
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