scholarly journals Dangers with cementation under low-viscosity state: Cement arterio-venogram and bone cement implantation syndrome

2021 ◽  
pp. 100517
Author(s):  
Raymond Chung Wai Wan ◽  
Wing Hong Liu ◽  
Raymond Wai Kit Ng ◽  
Chi Yin Tso ◽  
Simon Kwoon-Ho Chow ◽  
...  
2007 ◽  
Vol 17 (4) ◽  
pp. 218-223 ◽  
Author(s):  
K. Shiramizu ◽  
V. Lovric ◽  
A.M.D. Leung ◽  
W.R. Walsh

Purpose To mix high dose antibiotic powder to the bone cement more easily, Hanssen et al reported mixing the antibiotics with the cement during its liquid phase but made no comments about the relevance of cement viscosity and antibiotic distribution. The purpose of this study was to investigate the effect of the cement mixing technique and cement viscosity on the antibiotics distribution in a cement spacer model. Methods Thirty cylindrical models from three groups were examined. Group A was made by mixing the antibiotics with medium viscosity cement prior to adding the liquid monomer (traditional technique). Group B was made by mixing the antibiotics with medium viscosity cement during its liquid phase (Hanssen's technique). Group C was made by traditional technique with low viscosity cement. In all groups 2 g of tetracycline was used. Three 0.1 mm thick cross sections from each spacer model were examined under the fluorescent microscope. The fluorescent spots of tetracycline were calculated automatically in pixels. To evaluate the distribution of the antibiotics in the spacer model, we selected the cross section with the highest number of pixels and the one with the lowest number of pixels from each of the three cross sections and calculated the difference between them. The distribution disequilibrium was compared between group A and B, A and C. Results No significant difference was observed in either comparison. Conclusion The Hanssen's mixing technique can be used when using high dose antibiotics, and either medium or low viscosity cement could be used in terms of antibiotic distribution.


Impact ◽  
2021 ◽  
Vol 2021 (8) ◽  
pp. 61-63
Author(s):  
Woeichyn Chu

Surgical procedures are relatively common and procedures for broken bones often involve intramedullary nailing to repair the bone and keep it stable. However, there are challenges associated with the process and Professor Woeichyn Chu, who is a distinguished professor based within the Department of Biomedical Engineering at the National Yang Ming Chiao Tung University in Taiwan, is developing a medical device to help surgeons overcome these challenges, benefiting patients and clinicians. The device is called iMET (intra-medullary endo-transilluminating) and came about after Woeichyn Chu spoke with his brother, Dr William Chu, General Orthopedic Department, Cheng Hsin General Hospital, Taiwan, about some of the challenges relating to intramedullary nailing which led the brothers to begin working together to develop a medical device to help target distal locking holes in intramedullary nailing procedures. The iMET device that the brothers are developing is designed to improve target aiming accuracy and reduce dose absorption concerns. In the process, it will save significant time, effort and money. As well as benefiting patients and clinicians, iMET also reduces X-ray fluoroscopy time, which has health benefits for all involved. Woeichyn Chu and his brother are also developing a device called iKypho, which applies negative pressure during bone cement injection in percutaneous vertebroplasty surgeries. iKypho reduces bone cment leakage risks when using low viscosity cement and reducing the costs associated with high viscosity bone cement.


Author(s):  
Henri Bonfait ◽  
Christian Delaunay ◽  
Emmanuel De Thomasson ◽  
Philippe Tracol ◽  
Jean-Roger Werther ◽  
...  

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