骨奇形に伴う環軸椎垂直性亜脱臼に対するハローベスト牽引と後方固定術 : オレルードシステムと自家後頭骨移植

概要

論文の詳細を見る
Cranio-cervical fixation with instrumentation and cranial bone graft was performed for patients with atlantoaxial vertical subluxation (AAVS) due to bone anomalies of cranio-cervical junction. The five patients treated were all female with ages ranging from 49 to 73 years (mean : 60.2 yr). Symptoms were tetraparesis, weakness of the bilateral upper extremities, sensory disturbances, paresthesia, and neck pain. Accompanying bone anomalies were atlanto-occipital assimilation, hypoplasia of the atlas, os odontoideum, and block vertebrae. After correction of AAVS by traction using a halo-vest, symptoms were improved in all patients. Cranio-cervical fixation using an Olerud cervical fixation system with bone graft taken from some portion of occipital bone with or without foramen magnum decompression was performed under the halo-vest traction. No complications occurred during or after operation. All patients have been able to resume the daily activities of housewives in follow-up periods up to 5 years 4 months. Occipito-cervical (C2) bony fusion was completed and no recurrence of symptoms has been observed to date. The Olerud cervical fixation system with a cranial bone graft is safe and effective for the treatment of AAVS due to bone anomalies, although limitation of rotation neck movement is occurred by occipital and trans-articular screw fixation.
日本脊髄外科学会の論文
2002-11-30