Logo Medical Science Monitor Basic Research

Call: 1.631.470.9640
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo Medical Science Monitor Basic Research Logo Medical Science Monitor Basic Research Logo Medical Science Monitor Basic Research

28 May 2014 : Original article  

Applications of memory alloy stent in vertebral fractures

Yang YiminABCDEFG, Zhang ZhiABCDEFG, Ren ZhiWeiABCDEFG, Ma WeiABCDEFG, Rajiv Kumar JhaABDEFG

DOI: 10.12659/MSMBR.890835

Med Sci Monit Basic Res 2014; 20:76-81

Abstract

BACKGROUND: The aim of this study was to evaluate the feasibility of treating vertebral compression fractures using an autonomously developed nitinol memory alloy vertebral stent.

MATERIAL AND METHODS: Thoracolumbar vertebral specimens from adult human cadavers were made into models of compression fractures. The models were divided into group A, which received percutaneous kyphoplasty (PKP), balloon dilation, and nitinol memory alloy vertebral stent implantation (PKP + nitinol stent group); group B, which received percutaneous vertebroplasty (PVP) and direct implantation of a nitinol memory alloy vertebral stent (PVP + nitinol stent group); and group C, which received PKP, balloon dilation, and bone cement vertebroplasty (PKP + polymethylmethacrylate (PMMA) group). Vertebral heights were measured before and after the surgery and the water bath incubation to compare the impact of the 3 different surgical approaches on reducing vertebral compression.

RESULTS: The 3 surgical groups could all significantly restore the heights of compressed vertebral bodies. The vertebral heights of the PKP + nitinol stent group, PVP + nitinol stent group, and PKP + PMMA group were changed from the preoperative levels of (1.59±0.08) cm, (1.68±0.08) cm, and (1.66±0.11) cm to the postoperative levels of (2.00±0.09) cm, (1.87±0.04) cm, and (1.99±0.09) cm, respectively. After the water bath, the vertebral heights of each group were changed to (2.10±0.07) cm, (1.98±0.09) cm, and (2.00±0.10) cm, respectively. Pairwise comparison of the differences between the preoperative and postoperative vertebral heights showed that group A and group B differed significantly (P=0.000); group B and group C differed significantly (P=0.003); and group A and group C had no significant difference (P=0.172). Pairwise comparison of the differences in the vertebral heights before and after the water bath showed that group A and group C differed significantly (P=0.000); group B and group C differed significantly (P=0.000); and group A and group B had no significant difference (P=0.157).

CONCLUSIONS: The nitinol memory alloy stents can effectively support and reduce the compression of vertebral endplates and can be used to treat vertebral compression fractures without neurological symptoms.

Keywords: Alloys, Postoperative Care, Preoperative Care, Spinal Fractures - surgery, Spine - radiography, Stents

Add Comment 0 Comments

Most Viewed Current Articles

15 Jun 2022 : Clinical Research   3,991

Evaluation of Apical Leakage After Root Canal Obturation with Glass Ionomer, Resin, and Zinc Oxide Eugenol ...

DOI :10.12659/MSMBR.936675

Med Sci Monit Basic Res 2022; 28:e936675

07 Jul 2022 : Laboratory Research   3,942

Cytotoxicity, Apoptosis, Migration Inhibition, and Autophagy-Induced by Crude Ricin from Ricinus communis S...

DOI :10.12659/MSMBR.936683

Med Sci Monit Basic Res 2022; 28:e936683

01 Jun 2022 : Laboratory Research   3,757

Comparison of Sealing Abilities Among Zinc Oxide Eugenol Root-Canal Filling Cement, Antibacterial Biocerami...

DOI :10.12659/MSMBR.936319

Med Sci Monit Basic Res 2022; 28:e936319

08 Dec 2022 : Original article   3,315

Use of Estimated Glomerular Filtration Rate and Urine Albumin-to-Creatinine Ratio Based on KDIGO 2012 Guide...

DOI :10.12659/MSMBR.938176

Med Sci Monit Basic Res 2022; 28:e938176

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor Basic Research eISSN: 2325-4416
Medical Science Monitor Basic Research eISSN: 2325-4416