Case study: cosmicMIA^TM

Dynamic stabilization for spinal canal stenosis and spondylolisthesis due to a cyst

Prof. Dr. med. Peter Vajkoczy, Head of the Department of Neurosurgery Charité – Universitätsmedizin Berlin (Created in 2015)

"The patient demonstrated discrete signs of instability and for this reason, simple decompression of the spinal canal stenosis with removal of the cyst carried the risk of being additionally destabilizing. Because of the listhesis, we decided on additional dynamic stabilization with cosmicMIA."

Prof. Dr. med. Peter Vajkoczy, Head of the Department of Neurosurgery Charité – Universitätsmedizin Berlin

Symptoms
A 58-year-old male patient who had already had chronic intermittent spinal claudication symptoms presented to the hospital. He had high-grade left foot flexor paresis for which he came to the hospital on an acute basis.

Diagnosis
The standing functional X-ray image demonstrated a stable 2-mm offset consistent with a grade I Meyerding spondylolisthesis at L3/4 with suspected spinal canal stenosis with a joint or ligamentum flavum cyst. Decompression of the spinal canal and removal of the cyst was decided upon together with the patient. Due to the listhesis, it was decided to perform posterior stabilization using a dynamic screw-rod system.

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