For a long time, lumbar pedicle screw fixation and fusion has been regarded as the gold standard for the treatment of the lumbar spine degenerative diseases. However, in patients with osteoporosis, pedicle screw fixation often fails to obtain long-term satisfactory. In recent years, the emergence of cortical bone trajectory screw has become an alternative option for dealing with these problems. With the development of clinical and basic research, scholars have found that cortical bone screw internal fixation can help improve fixation strength, reduce surgical trauma, and accelerate postoperative recovery. Based on the current evidence-based research and clinical application experience, this article analyzes the research hotspots of cortical bone screws, introduces the experience and pitfalls in clinical practice, and provides references for colleagues.

一直以来，椎弓根螺钉内固定腰椎融合术都被认为是腰椎退行性疾病治疗的金标准，但在合并骨质疏松的患者中，该术式常不能使患者获得长期满意的结果。近年来，皮质骨轨迹螺钉的出现成为了处理这些问题的另一种选择。随着临床与基础研究的深入，学者发现皮质骨螺钉内固定有助于提高固定强度、降低手术创伤、加速术后康复。本文基于目前的循证研究与临床应用体会，分析皮质骨螺钉的研究热点问题，介绍临床实践中的体会，为同道提供参考。.