Case: This report details the cases of 2 older male patients with ankylosing spondylitis (AS) who presented with lumbar spinal stenosis at a single residual mobile segment and were treated with decompression without fusion. Both patients presented with severe symptoms in their lower limbs and opted to proceed with surgery.
Conclusion: With autofusion above and below their single, stable mobile segment, decompression without fusion was a safe and effective procedure. A Coflex device was implanted in 1 patient. After successful surgery, both patients experienced significantly decreased symptoms.
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