Laminar thinned-segmented decompression for treatment of thoracic ossification of ligamentum flavum with myelopathy
10.3760/cma.j.issn.0253-2352.2010.11.004
- VernacularTitle:椎板薄化分解揭盖法治疗胸椎黄韧带骨化合并脊髓病
- Author:
Dingjun HAO
;
Baorong HE
;
Zhengwei XU
;
Hua GUO
;
Tuanjiang LIU
;
Xiaodong WANG
- Publication Type:Journal Article
- Keywords:
Thoracic vertebrae;
Ligamentum flavum;
Spinal cord diseases
- From:
Chinese Journal of Orthopaedics
2010;30(11):1030-1034
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effects of the laminar thinned-segmented decompression technique in the treatment of thoracic ossification of ligamentum flavum with spondylotic myelopathy.Methods From January 1999 to January 2009,126 cases undergone the laminar thinned-segmented decompression.There were 73 males and 53 females with an average age of 50.2 years(range from 35 to 71 years).The affected segments located in upper thoracic spine in 28 cases,in mid-thoracic spine in 32 cases and in lowerthoracic spine in 66 cases.The postoperative outcomes were evaluated by Epstein and Schwall criteria,postoperative Japanese Orthopaedic Association(JOA)sphincter function score and JOA motor function score.All cases were examined by X-ray,CT and MRI to evaluate bone fusion.Results One hundred and sixteen cases were followed up from 12 to 96 months,with an average of 49.5 months.Post-operative JOA sphincter function score was 2.654±0.413 which had been significantly improved compared with the pre-operative score(1.981±0.543).Postoperative JOA motor function score was 3.720±0.709,which was significantly increased compared with the pre-operative score which was 1.196±0.964.According to Epstein and Schwall criteria,the clinical outcomes were excellent in 73 cases,good in 31 cases,fair in 9 cases and bad in 3 cases,and the excellent and good rate was 89.7%.Postoperative complications included spinal cord injury(6 cases),leakage of cerebrospinal fluid(5 cases),and infection of the incision(2 cases).Six months after operation,111 cases has achieved bone fusion,and all cases got bone fusion at the last follow up time.Conclusion The laminar thinned-segmented decompression technique is preferable to treat thoracic ossifcadon of ligamentum flavum with spondylotic myelopathy.
