Staphylococcus aureus infection complicating haemarthroses in elderly patients

Area of Science:

• Geriatric Medicine
• Infectious Diseases
• Orthopedics

Background:

• Osteoarthritis commonly affects elderly individuals, predisposing joints to complications.
• Hemarthrosis, or bleeding into a joint, can occur in osteoarthritic joints, potentially complicating diagnosis.
• Staphylococcus aureus is a common pathogen causing joint infections.

Observation:

• Three elderly patients with osteoarthritis presented with hemarthrosis.
• Two patients had a history of trauma to the affected joint.
• Despite only one patient showing clear sepsis signs, all had elevated erythrocyte sedimentation rates.

Findings:

• Joint fluid cultures revealed Staphylococcus aureus infection in all three patients.
• The presence of hemarthrosis initially obscured the suspicion of joint sepsis.
• All patients successfully recovered with appropriate antibacterial therapy.

Implications:

• This highlights the importance of considering joint infection in elderly patients with hemarthrosis of osteoarthritic joints.
• Routine joint fluid culture is crucial for diagnosing bacterial infection, even with coexisting hemarthrosis.
• Early diagnosis and antibiotic treatment are effective for managing Staphylococcus aureus joint infections in this population.