Modified anterior decompression for cervical myelopathy caused by ossification of posterior longitudinal ligament
- VernacularTitle:骨化灶游离前移治疗颈椎后纵韧带骨化症
- Author:
Fengjun SHI
;
Changsheng LIU
;
Yong ZHANG
- Publication Type:Journal Article
- Keywords:
Cervical vertebrae;
Decompression, surgical;
Ossification of posterior longitudinal ligament
- From:
Chinese Journal of Orthopaedics
1998;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical result of modified anterior decompression for the treatment of cervical myelopathy due to ossification of posterior longitudinal ligament(OPLL). Methods From April 1994 to October 2002, 42 cases of OPLL involving 134 cervical segments were operated using modified anterior decompression, among them there were 35 cases, 122 segments of the continuous type; 4 cases, 9 segments of the mixed type; 3 cases, 3 segments of the solitary type. The preoperative index of thickness (O-Index) ranged from 12.4%-78.8%, with an average of 43.2%. A slot was made in the vertebral body through anterior approach and bilateral border of the ossification was dissected from the posterior wall of vertebral body with burr-drill. Results The average follow-up was 3 years and 8 months ranging from 1 year and 6 months to 8 years. The recovery of neurologic function was evaluated according to JOA score: 28 cases with mild neurologic deficit (13-16 points) improved on average 74% postoperatively; 11 cases of the moderately damaged group (8-12 points) improved on 75%; 3 cases of the severely damaged group (
