2022, Number 2
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Ortho-tips 2022; 18 (2)
Incidence of microorganisms in human tissues procured
Matus JJ
Language: Spanish
References: 34
Page: 107-111
PDF size: 169.17 Kb.
ABSTRACT
Introduction: The grafts are obtained from different tissues, depending on their origin they are classified into: autografts, allografts and xenografts, they are selected, packaged and sterilized. During the selection process, germs that contaminate them are identified and that determine their acceptance or not for clinical use.
Material and methods: Swabs were taken from the tissues obtained from 2015 to 2019, they were sown in different culture media and the germs that developed were determined.
Results: Of the 4,620 tissues swabbed from 385 donors, 61% showed no growth; the iliac crests and Achilles tendons showed growth of Staphylococcus spp. in higher prevalence (25%), 19% was S. aureus. Tissues with Enterobacteriaceae (7%), Clostridium spp. (0.42%) and Pseudomonas aeruginosa (1.42%) were destroyed.
Conclusion: Due to the bioburden found in the tissues sought, it is concluded that some of these must be eliminated with sterilization methods that do not affect the integrity of the tissue and that is terminal, recommending gamma irradiation to ensure that they do not transmit an infection to the recipient.
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