A comparative perspective on brucellar, pyogenic, and tuberculous spondylodiscitis

Area of Science:

• Infectious diseases
• Spinal pathology
• Differential diagnosis

Background:

• Spondylodiscitis diagnosis is challenging due to non-specific symptoms, potentially leading to severe complications.
• Early and accurate diagnosis is crucial for effective management and improved patient outcomes.

Purpose of the Study:

• To compare brucellar, pyogenic, and tuberculous spondylodiscitis.
• To identify distinct demographic, clinical, and laboratory features for each type.
• To facilitate more rapid and effective patient management.

Main Methods:

• A comparative study involving 131 patients diagnosed with infectious spondylodiscitis.
• Patients were categorized into brucellar (n=63), pyogenic (n=53), and tuberculous (n=15) groups.
• Analysis focused on demographic, clinical, laboratory, and imaging characteristics.

Main Results:

• Tuberculous spondylodiscitis showed higher rates of weight loss, painless palpation, thoracic spine involvement, psoas abscess, and neurologic deficits.
• Pyogenic spondylodiscitis was associated with a history of spine surgery, fever, erythema, paraspinal abscess, elevated white blood cell (WBC) count, and erythrocyte sedimentation rate (ESR).
• Brucellar spondylodiscitis presented with higher rates of rural living and sweating, and lumbar spine involvement.

Conclusions:

• Distinct clinical and laboratory findings aid in differentiating tuberculous, pyogenic, and brucellar spondylodiscitis.
• Key indicators for tuberculous spondylodiscitis include weight loss, thoracic spine involvement, and neurologic deficits.
• Findings suggestive of pyogenic spondylodiscitis are spine surgery history, fever, and erythema, while brucellar spondylodiscitis is indicated by rural living and sweating.