Experimental model of staphylococcal osteomyelitis in dogs

Area of Science:

• Veterinary Medicine
• Infectious Diseases
• Orthopedics

Background:

• Osteomyelitis is a challenging bone infection.
• Staphylococcus aureus is a common causative agent.
• Understanding disease progression is crucial for treatment.

Purpose of the Study:

• To characterize the clinical, radiological, and bacteriological progression of induced canine osteomyelitis.
• To evaluate the duration of Staphylococcus aureus infection in bone.

Main Methods:

• Osteomyelitis was induced in 45 male dogs using Staphylococcus aureus.
• Clinical signs, radiographic features, and bacterial presence were monitored for 15 weeks.

Main Results:

• Clinical signs included swelling, pain, fever, lameness, and purulent discharge.
• Radiographic findings revealed periosteal reaction, bone lysis, new bone formation, sequestra, and abscesses.
• Staphylococcus aureus was consistently recovered from the infected bone for up to 15 weeks.

Conclusions:

• The study established a reliable canine model for Staphylococcus aureus osteomyelitis.
• The findings provide insights into the natural history and diagnostic features of this bone infection.