Application of a new anatomic hook-rod-pedicle screw system in young patients with lumbar spondylolysis:A pilot study

作     者：Duan-Ming Li Yong-Chao Li Wei Jiang Bao-Gan Peng 

作者机构：Department of OrthopaedicsThe Third Medical Center of PLA General HospitalBeijing 100039China Department of AnesthesiologyThe Third Medical Center of PLA General HospitalBeijing 100039China 

出 版 物：《World Journal of Clinical Cases》 (世界临床病例杂志)

年 卷 期：2022年第10卷第17期

页      面：5680-5689页

核心收录：

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

主　　题：Lumbar spondylolysis Hook-rod-pedicle screw system Internal fixation Bone healing 

摘      要：BACKGROUND The pedicle screw-laminar hook system has strong fixation and is conducive to bone graft fusion for lumbar ***,the current pedicle screwlaminar hook fixation system is not specifically designed for lumbar *** To investigate the clinical effects of a new anatomical hook-rod-pedicle screw system in the treatment of lumbar spondylolysis in young *** We designed a new anatomic hook-rod-pedicle screw system for young patients with lumbar *** isthmus and the corresponding pedicle screw entry point were exposed through the intermuscular *** iliac bone graft was obtained to bridge the isthmus defect,and then the anatomic hook-rod-pedicle screw system was used to fix the isthmus in 15 young *** At 24 mo follow-up,the visual analogue scale score of low back pain decreased from 6.73±0.88 to 0.73±0.59,and the Oswestry disability index score decreased from 58.20±8.99 to 7.87±*** tomography showed bilateral isthmic bone healing in 14 cases and unilateral isthmic bone healing in 1 *** resonance imaging showed that the lumbar disc signal of diseased segment and adjacent segments had no change compared with that before *** pain visual analogue scale score of the donor site was 0.20±0.41 at the last *** to the Modified Macnab score,the excellent and good rate was 100%.CONCLUSION The application of this new anatomical hook-rod-pedicle screw system to treat young patients with lumbar spondylolysis has the advantages of less trauma,a simple operation and satisfactory clinical effects.