scholarly journals Pedicle screw augmentation with bone cement enforced Vicryl mesh

Author(s):  
Samuel L. Schmid ◽  
Elias Bachmann ◽  
Michael Fischer ◽  
Dominik C. Meyer ◽  
Christoph A. Gerber ◽  
...  
2019 ◽  
Vol 19 (02) ◽  
pp. 1940024
Author(s):  
PO-YI LIU ◽  
SHENG-CHIH LIN ◽  
PO-LIANG LAI ◽  
CHUN-LI LIN

Pedicle screw loosening at the bone–screw interface is the main complication in pedicle screw fixation. The transpedicular polymethylmethacrylate screw augmentation technique has recently become the general technique used to re-operatively overcome pedicle screw loosening. This study investigates the fatigue resistance of PMMA bone cement augmentation. Twenty-seven porcine thoracic vertebral bodies were collected. The BMD was measured using dual X-ray absorptiometry. Each vertebral body was instrumented with one pedicle screw and mounted in a material testing system. Fatigue testing was performed by implementing a cranio-caudal sinusoidal, cyclic (5[Formula: see text]Hz) load. This study shows that transpedicular pedicle screw augmentation with PMMA exhibits similar fatigue resistance as traditional pedicle screw implantation. However, in histomophometrical analysis, the transpedicular pedicle screw augmentation with PMMA has greater anti-deformation capacity than traditional pedicle screw implantation. Transpedicular pedicle screw augmentation with PMMA improves more screw holding power to prevent pedicle screw loosening.


Author(s):  
Stewart D. McLachlin ◽  
Khalid Al Saleh ◽  
Kevin R. Gurr ◽  
Stewart I. Bailey ◽  
Chris S. Bailey ◽  
...  

Instrumentation failure in the S1 pedicles as a result of the screw loosening created by large cyclic bending loads is well documented. Biomechanical studies have shown that pedicle screw augmentation with Polymethylmethacrylate (PMMA) can result in improved screw-bone interface strength [1].


2020 ◽  
Vol 12 (2) ◽  
pp. 194 ◽  
Author(s):  
Jin Hak Kim ◽  
Dong Ki Ahn ◽  
Won Shik Shin ◽  
Myung Jin Kim ◽  
Ho Young Lee ◽  
...  

2016 ◽  
Vol 29 (2) ◽  
pp. 78-85 ◽  
Author(s):  
Haitao T. Fan ◽  
Renjie J. Zhang ◽  
Cailiang L. Shen ◽  
Fulong L. Dong ◽  
Yong Li ◽  
...  

2020 ◽  
Author(s):  
Guo-ye Mo ◽  
Teng-peng Zhou ◽  
Yong-xian Li ◽  
Hui-zhi Guo ◽  
Dan-qing Guo ◽  
...  

Abstract Purpose This study aimed to evaluate the efficacy and safety of bone cement-augmented pedicle screw fixation for stage III Kümmell disease. Methods Twenty-five patients with stage III Kümmell disease who received bone cement-augmented pedicle screw fixation at the First Affiliated Hospital of Guangzhou University of Chinese Medicine between June 2009 and December 2015 were enrolled. All patients were females with a history of osteoporosis. The vertebral Cobb angle (V-Cobb angle), the fixed segment Cobb Angle (S-Cobb angle), pelvic parameters, visual Analogue Scale (VAS) score, and Oswestry Disability Index (ODI) were assessed preoperatively, postoperatively and at the final follow-up. Complications, loosening rate, operation time, and intraoperative bleeding were recorded. Results The average lumbar vertebral density T-value was -3.68 ± 0.71 SD, and the average age was 71.84 ± 5.39. The V-Cobb angle, S-Cobb angle, and Sagittal Vertical Axis(SVA) were significantly smaller postoperatively compared to the preoperative values. The VAS and ODI at 1 month after surgery were 3.60 ± 1.00 and 36.04 ± 6.12%, respectively, which were both significantly lower than before surgery (VAS: 8.56±1.04, ODI: 77.80 ± 6.57%). Conclusion Bone cement-augmented pedicle screw fixation is a safe and effective treatment for stage III Kümmell disease. It can effectively correct kyphosis, restore and maintain sagittal balance, and maintain spinal stability.


Author(s):  
Kate D. Liddle ◽  
Michael A. Tufaga ◽  
Glenn Diekmann ◽  
Jenni M. Buckley ◽  
Viva Tai ◽  
...  

Failure of the pedicle screw at the screw-bone interface is a common clinical problem, particularly in the setting of osteoporosis, and poses reconstructive challenges for all orthopaedic surgeons. Pedicle screw failure through screw loosing and pull-out is highly correlated with bone mineral density (BMD) and local bone quality [1]. Pre-operative assessment of BMD via dual x-ray absorptiometry (DEXA) has been shown to help determine the need for screw augmentation. However, patients frequently present without pre-operative DEXA scans. Furthermore, DEXA scans provide a measure of general bone quality, but do not necessarily reflect segmental and local variation in the spine [2]. The ability to assess BMD on a per-vertebrae basis intra-operatively would assist with surgical decisions regarding screw sizing, placement and augmentation.


2018 ◽  
Vol 24 ◽  
pp. 1072-1079 ◽  
Author(s):  
Yan-Sheng Huang ◽  
Ding-Jun Hao ◽  
Hang Feng ◽  
Hai-Ping Zhang ◽  
Si-Min He ◽  
...  

2017 ◽  
Vol 17 (6) ◽  
pp. 837-844 ◽  
Author(s):  
Insa Janssen ◽  
Yu-Mi Ryang ◽  
Jens Gempt ◽  
Stefanie Bette ◽  
Julia Gerhardt ◽  
...  

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