Most Commmon cause of chronic osteomyelitis ?
Staphylococcus aureus
Streptococcus pyogenes
Mycobacterium tuberculosis
Staphylococcus epidermidis
Ans. is 'a' i.e., Staphylococcus aureus Chronic osteomyelitis is nearly always a sequel to acute osteomyelitis. Occasionally infection is subacute or chronic from the begining. As with acute osteomyelitis, the most common causative organism is staphylococcus areus.