Final answer:
Osteomyelitis is the inflammation of bone and bone marrow, commonly caused by a bacterial infection such as S. aureus, and can affect both adults and children with different points of origin.
Step-by-step explanation:
The inflammation of bone and bone marrow is known as osteomyelitis. This condition is a serious infection that can occur in both adults and children, but the causes of infection can differ based on age and circumstances. In adults, these infections often arise following trauma or a surgical procedure that involves prosthetic joints. The bacteria responsible for this ailment may enter directly into bone tissue. In contrast, children are more vulnerable to developing the condition through the bloodstream, whereby bacteria spread from other focal infections to the bones. Staphylococcus aureus (S. aureus) is the most common bacteria that causes osteomyelitis; however, other organisms such as Mycobacterium tuberculosis (M. tuberculosis), Pseudomonas aeruginosa, Streptococcus pyogenes, and various species in the Enterobacteriaceae can also be responsible, particularly when different bones are involved. It is important to note that in children, long bones like the femur are often affected due to more extensive vascularization.
Osteomyelitis is an inflammation of bone tissues most commonly caused by infection. These infections can either be acute or chronic and can involve a variety of different bacteria. The most common causative agent of osteomyelitis is S. aureus.
There are different ways in which bacteria can gain access to the bone tissues. In adults, it usually occurs through trauma or surgical procedures, while in children, bacteria are often introduced from the bloodstream. Long bones, such as the femur, are more commonly affected in children due to higher vascularization.