McKee Christopher, Espey Robert, O'Halloran Amanda, Curran Adrian, Darwish Nagy
Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, GBR.
Orthopaedic Surgery, Belfast Health and Social Care Trust, Belfast, GBR.
Cureus. 2023 May 11;15(5):e38864. doi: 10.7759/cureus.38864. eCollection 2023 May.
Introduction Anterior Cervical Discectomy and Fusion (ACDF) is the gold standard treatment for symptomatic cervical spondylosis refractory to analgesic medical management. Currently, there are numerous approaches and devices used; however, there is no single implant that is preferred for this procedure. The aim of this study is to evaluate the radiological outcomes of ACDF procedures performed in the regional spinal surgery centre in Northern Ireland. The results of this study will aid surgical decision-making, specifically with regard to the choice of implant. The implants that will be assessed in this study are the stand-alone polyetheretherketone (PEEK) cage (Cage) and the Zero-profile augmented screw implant (Z-P). Methods A total of 420 ACDF cases were reviewed retrospectively. Following exclusion and inclusion criteria, 233 cases were reviewed. In the Z-P group, there were 117 patients, with 116 in the Cage group. Radiographic assessment was carried out at the pre-operative stage, day one post-operation, and follow-up (> three months). Measured parameters included segmental disc height, segmental Cobb angle, and spondylolisthesis displacement distance. Results Patient characteristic features showed no significant difference between the two groups (p>0.05) and no significant difference in mean follow-up time (p=0.146). The Z-P implant was superior in increasing and maintaining disc height post-operatively (+0.4±0.94mm, 5.20±0.66mm) compared to the Cage (+0.1±1.00mm, 4.40±0.95mm) (p<0.001). Z-P was also more successful in restoring and maintaining cervical lordosis in comparison to the Cage group, as it had a significantly smaller kyphosis incidence (0.85% vs. 34.5%) at follow-up (p<0.001). Conclusions Results of this study show a more advantageous outcome in the Zero-profile group as it restores and maintains both disc height and cervical lordosis; it is also more successful in treating spondylolisthesis. This study advocates cautious endorsement of the use of the Zero-profile implant in ACDF procedures for symptomatic cervical disc disease.
引言
前路颈椎间盘切除融合术(ACDF)是药物镇痛治疗无效的症状性颈椎病的金标准治疗方法。目前,该手术有多种手术方式和植入器械;然而,对于此手术并没有一种特别推荐的单一植入物。本研究的目的是评估在北爱尔兰地区脊柱外科中心进行的ACDF手术的影像学结果。本研究结果将有助于手术决策,特别是在植入物的选择方面。本研究中评估的植入物是独立聚醚醚酮(PEEK)椎间融合器(椎间融合器)和零切迹增强螺钉植入物(Z-P)。
方法
回顾性分析了420例ACDF病例。根据排除和纳入标准,最终纳入233例病例进行分析。其中Z-P组117例患者,椎间融合器组116例患者。在术前、术后第1天和随访(>3个月)时进行影像学评估。测量参数包括节段性椎间盘高度、节段性Cobb角和椎体滑脱移位距离。
结果
患者特征在两组之间无显著差异(p>0.05),平均随访时间也无显著差异(p=0.146)。与椎间融合器相比,Z-P植入物在术后增加和维持椎间盘高度方面更具优势(分别为+0.4±0.94mm,5.20±0.66mm),而椎间融合器组为(+0.1±1.00mm,4.40±0.95mm)(p<0.001)。与椎间融合器组相比,Z-P在恢复和维持颈椎前凸方面也更成功,因为在随访时其后凸发生率显著更低(0.85%对34.5%)(p<0.001)。
结论
本研究结果显示,零切迹组在恢复和维持椎间盘高度及颈椎前凸方面有更有利的结果;在治疗椎体滑脱方面也更成功。本研究主张在有症状的颈椎间盘疾病的ACDF手术中谨慎认可使用零切迹植入物。