Osteomyelitis Definition: Infection of The Bone and Surrounding Tissues, Most Commonly Caused by
Osteomyelitis Definition: Infection of The Bone and Surrounding Tissues, Most Commonly Caused by
Osteomyelitis Definition: Infection of The Bone and Surrounding Tissues, Most Commonly Caused by
Definition: Infection of the bone and surrounding tissues, most commonly caused by
Staphylococcus Aureus.
> It can be either acute or chronic.
>This disorder usually occurs
as a result of an infection in one part of the body that is transported through the
bloodstream to a bone in a distant location.
Also Known As:
Hematogenous Osteomyelitis
Incedence
Acute osteomyelitis is rare in children. It's estimated that one in every 1,000
children under the age of one will develop acute osteomyelitis.
The condition is even less common in children over one, with one in every 5,000
children affected
Risk Factors
• Trauma
• Diabetes
• Hemodialysis
• Splenectomy
• ↓Immune function
• Poor circulation
Anatomy
Pathophysiology
Osteomyelitis
Risk Factors
Trauma
Diabetes
Hemodialysis
↓Immune function
Poor circulation
Bacterial invasion
Staphylococcus Aureus(70% and 80%)
Proteus, Pseudomonas
Escherichia coli
Compensatory Mechanisms
Molecular changes
Pus spread to vascular channel
Decreased blood flow
exudation of polymorphonuclear leukocytes
increased erythrocytes
increased WBC
Anatomical Physical Changes:
Vascular congestion
Small vessel thrombosis
Edema
Inflammation
↓ cardiac output
↓ impaired cellular metabolism
ischemic necrosis
systemic infection
lysis of the bone cell
Bone deformities
Diagnostic Findings
x-ray findings
- demonstrate soft tissue swelling
- bone necrosis
- and new bone information are evident
Radioisotope bone scans , Isotope-labeled white blood cell (WBC) scan,
Magnetic Resonance Imaging
Help with early definitive diagnosis
Wound and blood culture
Performed to identify appropriate antibiotic therapy
Management
Analgesics as prescribed.
Antibiotics as prescribes.
Dressing changes- use sterile technique.
Maintain proper body alignment and change position frequently to prevent deformities.
Immobilization of affected part.
Surgery if needed: