抄録
We studied the surgical outcome in 6 cases of cervical spondylotic myelopathy with athetoid cerebral palsy (Athetoid cervical myelopathy). All of the patients underwent unilateral open-door laminoplasty with autogenetic iliac block bone graft. There were 3 men and 3 women with a mean age of 49.0 years (range, 37 to 60 years) and a mean follow-up period of 2 years and 11 months (range, 5 to 106 months). There were 2 cases of canal stenosis within 13mm of anteroposterior diameter, and all the cases had instability of 2mm or more. Bone union was acquired in 5 cases. The mean JOA score (Scoring system of Japanese Orthopaedic Association for cervical spondylotic myelopathy)was 5.3 (range, 1-8) before surgery and improved to 8.2 (range, 3-12) after surgery. Functional scores of lower extremities improved in 4 patients. The mean improvement rate was 25.7% (range, 13-44%). Surgical treatment for athetoid cervical myelopathy is difficult because of its severe multisegmental instability and canal stenosis. Laminoplasty with one block bone graft was to be useful for these cases.
