Pediatric Osteomyelitis Clinical Presentation
- Author: Sabah Kalyoussef, DO; Chief Editor: Russell W Steele, MD more...
History
- Long bones, including the femur, tibia, and humerus, are most commonly affected.
- Fever, bone pain, swelling, redness, and guarding the affected body part are common.
- Inability to support weight and asymmetric movement of extremities are often early signs in newborns and young infants.
Physical
- Painful focal swelling with cardinal signs of inflammation is often present.
- In a cooperative patient, the clinician may be able to elicit focal point tenderness over the affected bone.
- Draining sinus and bone deformity are both rare in acute disease. When present, these symptoms suggest subacute or chronic infection.
- Movements of the adjoining joint may be restricted due to joint involvement or associated soft tissue inflammation.
- Cellulitis, subcutaneous abscess, fractures, and bone tumors should be considered in the differential diagnosis. In newborns and infants in whom osteomyelitis may present as a pseudoparalysis, also consider CNS disease (eg, poliomyelitis), cerebral hemorrhage, trauma, scurvy, and child abuse.
Causes
- Staphylococcus aureus is the most common pathogen, followed by Streptococcus pneumoniae and Streptococcus pyogenes. Community-associated methicillin-resistant S aureus (CA-MRSA) is also an increasing problem and is the most common cause in many regions.[2, 3, 4]
- Gram-negative bacteria and group B streptococci are frequently seen in newborns.
- Pseudomonas aeruginosa is often associated with osteomyelitis and osteochondritis following penetrating wounds of the foot through a tennis shoe.
- Children who are immunocompromised are prone to infection with various fungi and bacteria, in addition to common pathogens.
- Bony lesions due to Bartonella henselae (cause of catscratch disease) have also been reported.
- Salmonella is an important cause of osteomyelitis in children with sickle cell disease and other hemoglobinopathies.
- Kingella kingae, a fastidious gram-negative rod, is increasingly recognized as a cause of osteoarticular infections, particularly in the first 2 years of life and following a respiratory tract infection.
- Anaerobes such as Bacteroides, Fusobacterium, Clostridium, and Peptostreptococcus rarely cause osteomyelitis.
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