Tuberculosis Osteomyelitis of the Wrist

Area of Science:

• Infectious Diseases
• Orthopedic Surgery
• Microbiology

Background:

• Osteomyelitis, an infection of the bone, can be caused by various pathogens.
• Tuberculosis (TB) complex osteomyelitis is uncommon, particularly in the wrist.
• Polymicrobial infections involving TB complex are exceptionally rare.

Purpose of the Study:

• To report an unusual case of polymicrobial tuberculosis osteomyelitis affecting the wrist.
• To emphasize the diagnostic challenges and importance of a comprehensive workup for atypical bone infections.

Main Methods:

• A case presentation of a patient with a 2.5-year history of wrist nodules.
• Surgical debridement and tissue cultures for microbiological analysis.
• Empirical and targeted antimicrobial therapy based on culture results.

Main Results:

• Tissue cultures identified methicillin-resistant Staphylococcus aureus, Enterococcus faecalis, and Mycobacterium tuberculosis complex.
• The patient received a combination of vancomycin, rifampin, isoniazid, pyrazinamide, and ethambutol.
• Clinical improvement in symptoms was observed following treatment.

Conclusions:

• This case underscores the necessity of considering a broad differential diagnosis for wrist osteomyelitis.
• Atypical presentations require thorough investigation to identify uncommon etiologies like polymicrobial TB.
• Timely diagnosis of rare pathogens is crucial for effective treatment and patient outcomes.