中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (31): 4969-4974.doi: 10.3969/j.issn.2095-4344.2017.31.009

• 脊柱植入物 spinal implant • 上一篇    下一篇

预防螺钉松动拔出及复位椎体再滑脱:如何更好的治疗骨质疏松性腰椎滑脱症

陈 晓,邵高海,徐海涛   

  1. 重庆医科大学附属永川医院骨科,重庆市 402160
  • 出版日期:2017-11-08 发布日期:2017-12-01
  • 通讯作者: 徐海涛,硕士,医师,重庆医科大学附属永川医院骨科,重庆市 402160
  • 作者简介:陈晓,男,1991年生,四川省内江市人,汉族,重庆医科大学附属永川医院在读硕士,主要从事脊柱外科及创伤骨科方面的研究。
  • 基金资助:

    重庆医科大学附属永川医院资助项目(YJLCX201540)

Preventing the screw from loosening and pulling out, secondary lumbar spondylolisthesis: how to select a better therapeutic scheme for osteoporotic lumbar spondylolisthesis?

Chen Xiao, Shao Gao-hai, Xu Hai-tao   

  1. Department of Orthopedics, Yongchuan Hospital, Chongqing Medical University, Chongqing 402160, China
  • Online:2017-11-08 Published:2017-12-01
  • Contact: Xu Hai-tao, Master, Physician, Department of Orthopedics, Yongchuan Hospital, Chongqing Medical University, Chongqing 402160, China
  • About author:Chen Xiao, Studying for master’s degree, Department of Orthopedics, Yongchuan Hospital, Chongqing Medical University, Chongqing 402160, China
  • Supported by:

    the Project of Yongchuan Hospital, Chongqing Medical University, No. YJLCX201540

摘要:

文章快速阅读:

 
 
 
文题释义:
滑脱复位率:首先在影像学资料上分别测量出每个手术患者术前、术后滑脱椎体的滑脱距离(滑脱距离=滑脱椎体与下位正常椎体间距离),计算出滑脱复位距离(即术前、术后滑脱距离差),最后利用公式:滑脱复位     率=[(术前滑脱距离-术后滑脱距离)/术前滑脱距离]×100%,即可得到相应椎体的滑脱复位率。
“骨中有钉,钉中有骨”现象:膨胀式椎弓根螺钉在膨胀后可产生2个张开的“爪”状鳍,嵌入椎体骨质中,随着时间推移,钉道周围部分骨小梁会长入膨胀螺钉远端的螺纹间隙及纵性裂隙内,从而伴随相应骨质生成,螺钉与椎体骨质相互嵌和,形成“你中有我、我中有你”的现象,显著增加了螺钉的抗拔出力及抗旋效能,使得固定更加牢靠。
 
摘要
背景:研究认为膨胀式椎弓根螺钉抗旋能力强,可以很好的预防螺钉松动、拔出,维持腰椎稳定性、保持其生理曲度,为远期椎体间融合提供一个安全稳定的环境。
目的:探讨膨胀式椎弓根螺钉与普通椎弓根螺钉治疗骨质疏松性腰椎滑脱症的差异。
方法:合并骨质疏松的腰椎滑脱症患者共67例分为保守组12例、膨胀式椎弓根螺钉组20例、普通椎弓根螺钉组35例。3组采集入院时、入院后1周、出院后6个月、出院后12个月、出院后24个月的目测类比评分和JOA评分及影像学资料,对螺钉稳定性、脊柱融合情况进行评估,参考Meyerding滑脱分级标准评估椎体的滑脱情况。

结果与结论:①末次随访时JOA改善率:膨胀式椎弓根螺钉组与普通椎弓根螺钉组相比较差异无显著性意义(P=1.00),均显著高于保守组(P均< 0.05);②目测类比评分:膨胀式椎弓根螺钉组与普通椎弓根螺钉组均显著降低,两组间比较差异无显著性意义(P > 0.05),而保守治疗组目测类比评分时高时低,反复变化;③滑脱复位率:膨胀式椎弓根螺钉组明显高于普通椎弓根螺钉组(P < 0.01);④内固定后24个月脊柱融合评分:膨胀式椎弓根螺钉组明显高于普通椎弓根螺钉组(P=0.035);⑤结果说明:对于合并骨质疏松的腰椎滑脱患者,采用膨胀式椎弓根螺钉固定在滑脱复位、植骨融合率、螺钉稳定性等方面都明显优于普通椎弓根螺钉,此方法更加安全有效。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0001-8782-4309(陈晓)

关键词: 骨科植入物, 脊柱植入物, 腰椎滑脱症, 膨胀式螺钉, 普通椎弓根螺钉, 保守治疗

Abstract:

BACKGROUND: Expansive pedicle screws have been found to have strong resistance to rotation, prevent screw loosening and pulling out, and maintain the stability and physiological curvature of lumbar vertebrae, so it provides a secure and stable environment for long-tem intervertebral fusion.

OBJECTIVE: To investigate the clinical efficacy of the expandable versus conventional pedicle screws in the treatment of osteoporotic lumbar spondylolisthesis.
METHODS: A total of 67 cases of osteoporotic lumbar spondylolisthesis were randomized into three groups, and then treated with conservative treatment (n=12), expansive pedicle screws (n=20), and common pedicle screws (n=35), respectively. The Japanese Orthopaedic Association and Visual Analogue Scale scores as well as radiological data were obtained immediately and 1 week after admission, 6 and 12 months after discharge. The stability of the screw and spinal fusion were evaluated, and the spondylolisthesis was assessed according to Meyerding system.
RESULTS AND CONCLUSION: (1) The improvement rate of Japanese Orthopaedic Association scores at the last follow-up showed no significant difference between expansive and common groups (P=1.00), and the improvement rate in the expansive and common groups was significantly higher than that in the conservative group (P < 0.05). (2) The Visual Analogue Scale scores in the expansive and common groups were significantly decreased, and the scores did not differ significantly between two groups (P > 0.05); the scores in the conservative group changed irregularly. (3) The reduction rate of spondylolisthesis in the expansive group was significantly higher than that in the common group (P < 0.01). (4) The spinal fusion score at 24 months postoperatively in the expansive group was significantly higher than that in the common group (P=0.035). (5) For osteoporotic patients with lumbar spondylolisthesis, the expansive pedicle screws are much better than the common pedicle screws in the spondylolisthesis reduction, fusion rate of bone graft, screw stability; therefore, it is a safer and more effective method.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Osteoporosis, Spondylolisthesis, Internal Fixators, Tissue Engineering

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