What is the most common causative organism for spondylodiscitis?

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What is the most common causative organism for spondylodiscitis?

Spondylodiscitis most often results from bacteria that seed the spine through the bloodstream, and the usual offender is Staphylococcus aureus. This organism is common on the skin and in the nasal passages, readily enters the circulation during bacteremia, and has virulence factors that help it invade bone and disc tissue and resist immune defenses. Because of these traits, Staphylococcus aureus accounts for the majority of spondylodiscitis cases in adults, including MRSA strains, which is why it is the typical initial target when diagnosing and treating suspected infection. Staphylococcus epidermidis tends to come up with prosthetic device–related infections and biofilm formation on hardware. Streptococcus pneumoniae is more linked to respiratory or meningeal infections, not the spine as commonly. Escherichia coli can cause spinal infections, but far less frequently than Staphylococcus aureus. In children, other organisms like Kingella kingae can be important, but the top culprit in the broader population is Staphylococcus aureus.

Spondylodiscitis most often results from bacteria that seed the spine through the bloodstream, and the usual offender is Staphylococcus aureus. This organism is common on the skin and in the nasal passages, readily enters the circulation during bacteremia, and has virulence factors that help it invade bone and disc tissue and resist immune defenses. Because of these traits, Staphylococcus aureus accounts for the majority of spondylodiscitis cases in adults, including MRSA strains, which is why it is the typical initial target when diagnosing and treating suspected infection.

Staphylococcus epidermidis tends to come up with prosthetic device–related infections and biofilm formation on hardware. Streptococcus pneumoniae is more linked to respiratory or meningeal infections, not the spine as commonly. Escherichia coli can cause spinal infections, but far less frequently than Staphylococcus aureus. In children, other organisms like Kingella kingae can be important, but the top culprit in the broader population is Staphylococcus aureus.

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