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Acute exposure of white-tailed deer cortical bone to Staphylococcus aureus did not result in reduced bone stiffness
- Source :
- Journal of the Mechanical Behavior of Biomedical Materials. 82:329-337
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Staphylococcus aureus (S. aureus) is the main source of osteomyelitis in adults. The end-result of untreated osteomyelitis is bone necrosis and distraction of bone structure. While bone tissue can heal and remodel its structure to ameliorate its mechanical properties, so far no study has tested the mechanical properties of cortical bone tissue exposed to S. aureus. With the increase usage of bone banks as a source of bone graft supply, it is important to screen for any possible pathology that may affect the bone graft success to function normally in the receiving patient. This study tested the effect of acute exposure to S. aureus on cortical bone stiffness. We have postulated that the incubation of cortical bone with S. aureus for 48 h will result in a significant decrease in bone stiffness. Sixty-five bone cubes (2 × 2 × 2 mm) were prepared from the cranial and caudal aspects of four white-tailed deer mid-diaphysis humeri. First, all bone samples were tested to determine their stiffness in the three principle orientations (axial, radial and transverse). Next, bone samples were incubated for 48 h with S. aureus (32 cubes, experimental group) or with sterile distilled water (33 cubes, control group). Finally, all cubes were mechanically tested again and each stiffness value was compared to the original value obtained from the same cube. Our results revealed that overall, acute exposure to S. aureus did not significantly decrease bone stiffness and thus our working hypothesis could not be supported. Therefore, our findings support the current tissue collection screening methods employed by bone-graft banks.
- Subjects :
- 0301 basic medicine
Bone Banks
Staphylococcus aureus
Pathology
medicine.medical_specialty
Necrosis
030106 microbiology
Biomedical Engineering
Bone tissue
medicine.disease_cause
Biomaterials
03 medical and health sciences
Elastic Modulus
Materials Testing
Cortical Bone
medicine
Animals
Mechanical Phenomena
business.industry
Deer
Osteomyelitis
medicine.disease
Biomechanical Phenomena
030104 developmental biology
medicine.anatomical_structure
Mechanics of Materials
Acute exposure
Cortical bone
medicine.symptom
business
Bone stiffness
Subjects
Details
- ISSN :
- 17516161
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Journal of the Mechanical Behavior of Biomedical Materials
- Accession number :
- edsair.doi.dedup.....16b144bde761a2658d39167a7b7dc570