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Medical Science & Technology is an open access, peer-reviewed journal that is dedicated to publishing research in all areas of applied technology in medicine and biomedical research. It is aimed at readers and authors with their main interest in the application of technology to solve problems in the medical and biological sciences, and overlapping areas of medicine and technology, such as (but not... read more

Published: 2017-04-13

Ineffectiveness of N-[(2-Hydroxyl-3-Trimethyl Ammonium)Propyl] Chitosan Chloride Coating in Prevention of Pin Tract Infection: An In Vivo Study

Vidmi Taolam Martin, Chandan Kumar, Wang Lei, Zhang Xiang, Hou Yi Long, Zhang Xian Rong, Rong Zeng, Yaozi Long, Deqiang You, Mayun Fei, Welera Haissou Elodie, Mei Tu, Yu Bin

(Department of Orthopedic and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland))

Med Sci Tech 2017; 58:34-41

DOI: 10.12659/MST.903420

BACKGROUND: The aim of this study was to investigate the in vivo efficacy of an implant coated with HTCC in prevention of pin tract infection, a major complication in orthopedic surgery, in comparison with an uncoated implant.
MATERIAL AND METHODS: Twenty-four mature male white rabbits were randomized into 2 equal groups (N=12). HTCC-coated implants were used in the experimental group and uncoated implants in the control group. The implants were colonized with 1×106 colony-forming units (CFU) of Staphylococcus aureus and inserted into the lateral aspect of the right proximal tibiae (1 implant per rabbit). In each group at 2 and 4 weeks after surgery, 5 and 7 rabbits were sacrificed, respectively, to harvest the soft tissues around the pin tract for histological analysis, radiographic examination, and gross observation of the surgical sites.
RESULTS: After 4 weeks, 100% of the uncoated implants showed signs of infection, while 75% of the HTCC-coated implants were infected.
CONCLUSIONS: HTCC coating was not effective in prevention of pin tract infection.

Keywords: Anti-Bacterial Agents, Chitosan, Models, Animal

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Early Detection of Cardiac Dysfunction in Stable Chronic Obstructive Pulmonary Disease Patients

Rongrong Bi, Zhihua Zhang, Huiyong Zhang, Lei Wang

Med Sci Tech 2017; 58:27-33

DOI: 10.12659/MST.904083

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Furong Wan, Song Peng, Qiquan Wan

Med Sci Tech 2017; 58:21-26

DOI: 10.12659/MST.902332