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Eur Spine J. 2012 May;21 Suppl 1(Suppl 1):S50-4. doi: 10.1007/s00586-012-2219-x. Epub 2012 Mar 9.
Pre-curved peek rods to support posterior lumbar fusion have been available in the market since 4 years. Potential advantages using this new technology are increased load sharing on the anterior column promoting interbody fusion, reduced stress on bone-screw interface decreasing the rate of screw mobilization and, in the long term, reduced incidence of adjacent level disc degeneration.
The authors retrospectively reviewed 30 cases in which posterior fusion was supported by peek rods, analyzing early complications, rate of fusion and clinical outcome.
At an average follow-up of 18 months, both clinical and radiographic results were satisfactory with only one case requiring surgical revision for a mechanical complication.
The semi-rigid systems can now be considered a viable option in the lumbar degenerative disease, although clinical evaluations are necessary in the longer term.
预弯 peek 杆自 4 年前开始应用于辅助后路腰椎融合术。使用这种新技术的潜在优势在于增加前柱的载荷分担，促进椎体间融合，减少骨-螺钉界面的应力，从而降低螺钉松动的发生率，从长远来看，降低相邻节段椎间盘退变的发生率。
作者回顾性分析了 30 例使用 peek 杆辅助后路融合的病例，分析了早期并发症、融合率和临床结果。
平均随访 18 个月时，所有患者的临床和影像学结果均满意，仅 1 例因机械并发症需要手术翻修。
半刚性系统现在可以被认为是腰椎退行性疾病的一种可行选择，尽管还需要在更长时间内进行临床评估。
