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Published on: October 20, 2013
Pyogenic spondylitis
J Leitao1, S Govender, A H Parbhoo
1Department of Orthopaedic Surgery, University of Natal, Durban.
Abstract:
Twenty-nine patients with pyogenic vertebral osteomyelitis were reviewed retrospectively after an average follow-up of 3.7 years. We identified 17 patients with predisposing factors (10 diabetes, 4 urinary tract infection, 2 HIV-positive, 1 rheumatoid arthritis). No patient presented with a febrile illness. The lumbar spine was involved in 15 patients. Eighteen patients had neurological impairment at presentation. Eleven patients who were neurologically intact had needle biopsies and the remaining 18 patients who were neurologically compromised had an open decompression. Staphylococcus aureus was cultured in 14 patients. Although spinal tuberculosis is relatively common in our environment it is important to obtain a tissue diagnosis in order to exclude pyogenic vertebral osteitis.
Insights
Pyogenic vertebral osteomyelitis often lacks fever and commonly affects the lumbar spine. Staphylococcus aureus is a frequent cause, highlighting the need for tissue diagnosis to differentiate from tuberculosis.
Area of Science:
- Infectious Diseases
- Orthopedic Surgery
- Neurosurgery
- Radiology
Background:
- Pyogenic vertebral osteomyelitis (PVO) is a serious spinal infection.
- Predisposing factors include diabetes, urinary tract infections, and HIV.
- Clinical presentation can be atypical, often without fever.
Purpose of the Study:
- To review clinical characteristics, predisposing factors, and outcomes of PVO.
- To emphasize the importance of microbiological diagnosis in PVO management.
- To differentiate PVO from other spinal infections like tuberculosis.
Main Methods:
- Retrospective review of 29 patients with PVO.
- Analysis of patient demographics, clinical presentation, and predisposing factors.
- Evaluation of diagnostic methods (needle biopsy vs. open decompression) and microbiological results.
Main Results:
- Average follow-up was 3.7 years.
- 17 patients had predisposing factors; lumbar spine involvement was common (15 patients).
- Neurological impairment was present in 18 patients; Staphylococcus aureus was the most common pathogen (14 patients).
Conclusions:
- PVO diagnosis requires a high index of suspicion, especially with atypical presentations.
- Tissue diagnosis is crucial for accurate identification of the causative pathogen.
- Prompt diagnosis and appropriate treatment are essential to prevent neurological complications.
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