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Updated: Jul 2, 2026

Diagnosis and Surgical Treatment of Human Brucellar Spondylodiscitis
Published on: May 23, 2021
[Spondylodiscitis without fever: a diagnostic challenge]
J Lüthy1, A Trampuz, A Tyndall
1Rheumatologische Universitätsklinik, Felix Platter-Spital und Universitätsspital, Basel.
History And Clinical Findings:
Three patients with different forms of vertebral osteomyelitis are presented, two with hematogenous infections caused by Streptococcus pneumoniae and Staphylococcus aureus and one with postsurgical infection after excision of a vertebral disc caused by coagulase-negative staphylococci. None of the patients was initially febrile, but all had localized back pain and a restricted range of movement of the vertebral column. EXAMINATIONS, DIAGNOSIS: In all three patients the MRI of the affected vertebral column was consistent with vertebral osteomyelitis. Microbiological diagnosis was made by bone biopsy in all patients and by blood cultures in two of them.
Treatment And Course:
Antibiotics were administered for 4-6 weeks. At follow-up two patients were without symptoms, but the third patient had persistent back pain without radiological signs of vertebral osteomyelitis.
Conclusion:
In patients with localized back pain vertebral osteomyelitis should be included in the differential diagnosis, even if there is no fever and no increase in white cell count, the erythrocyte sedimentation rate or C-reactive protein level and radiography is normal. Specific bacterial diagnosis should be made by multiple bone biopsy or blood cultures, before starting appropriate antibiotics.
Insights
Vertebral osteomyelitis can occur without fever or elevated inflammatory markers. Early diagnosis via imaging and bone biopsy is crucial for effective antibiotic treatment of back pain.
Area of Science:
- Infectious Diseases
- Orthopedic Surgery
- Radiology
Background:
- Vertebral osteomyelitis is a serious infection of the spine.
- Prompt diagnosis and treatment are essential to prevent complications.
Observation:
- Three patients with vertebral osteomyelitis (two hematogenous, one postsurgical) presented with localized back pain and limited mobility, but no fever.
- Magnetic Resonance Imaging (MRI) confirmed vertebral osteomyelitis in all cases.
- Microbiological diagnosis was achieved through bone biopsy and blood cultures.
Findings:
- Antibiotic therapy for 4-6 weeks led to symptom resolution in two patients.
- One patient experienced persistent back pain despite treatment, with no radiological signs of active infection.
Implications:
- Vertebral osteomyelitis should be considered in the differential diagnosis of localized back pain, even without typical signs like fever or elevated inflammatory markers.
- Accurate bacterial diagnosis via bone biopsy or blood cultures is critical before initiating targeted antibiotic therapy.
- This case series highlights the importance of a high index of suspicion for vertebral osteomyelitis in patients with persistent back pain.
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