Rheumatology Medical News about ankylosing spondylitis;discovertebral lesions of the spine

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Discovertebral (Andersson) lesions of the spine in ankylosing spondylitis revisited
Clinical Rheumatology, 03/31/09

Bron JL et al. - Use of the term “Andersson lesion” (AL) for localised vertebral or discovertebral lesions of the spine in ankylosing spondylitis (AS) patients is advised.

Methods

Aim was to come to a consensus for the term used for localised vertebral or discovertebral lesions of the spine in AS pts
An extensive review of the literature in order to align communication on aetiology, diagnosis and management between treating physicians

Results

AL may result from inflammation or stress fractures of the complete ankylosed spine
There is no evidence for an infectious origin
Regardless of the exact aetiology, mechanical stresses prevent the lesion from fusion and provoke the development of pseudarthrosis
Diagnosis of AL is established on conventional radiography, but CT and MRI both provide additional information
There is no indication for a diagnostic biopsy
Surgical instrumentation and fusion is considered the principle management in symptomatic AL that fails to resolve from a conservative treatment

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