Osteomyelitis Flashcards
1
Q
Define:
A
Infection of the bone leading to inflammation , necrosis and new bone formation
Can be acute, subacute and chronic
Usually due to staphylococcus aureus or group A Streptococcus
2
Q
Aetiology:
A
Bacterial skin inoculation (trauma, operative, chronic skin ulcers and haematogenous spread)
3
Q
Risk factors:
A
Diabetes Immunosuppression Iv drug use Prostheses Sickle cell anaemia
4
Q
Symptoms:
A
Pain in the affected area Fever Malaise Rigors Hx of skin lesions, sore throat, trauma or operations
5
Q
Signs:
A
Localised erythema Tenderness Seropurulent puss from site Swelling Warmth Painful limited movement
6
Q
Epidemiology:
A
Mostly in young children
<20% in adults
7
Q
Investigations;
A
FBC
Blood Cultures
ESR
CRP
Swabs of wound or discharge
Radiographs - osteopenia, soft tissue swelling, periosteal thickening
Radioisotope scan
