[Surgical treatment of XXXX associated with unstable degenerative spondylolisthesis].

@entity1 @entity2649 @entity615 @entity281 @entity613 @entity158 @entity850 @entity1516
OBJECTIVES: To assess surgical treatment of @entity2649 associated with unstable degenerative spondylolisthesis. METHODS: In 86 @entity1 with @entity2649 associated with unstable degenerative spondylolisthesis. (30 @entity1 and 56 @entity1 , aged from 30 to 77 years), 63 @entity1 complained of @entity615 with both lower @entity158 , 10 @entity1 @entity158 in one leg, and 13 @entity1 only @entity615 . Seventy-two of these @entity1 complained of @entity613 , with a walking distance ranging from 10 to 1 000 m. Thirty-two @entity1 had some changes in sensation, motion and reflexes of the foot. According to White' critera, all @entity1 showed dynamic instability of the lesion. Meyerding criteria showed degree 1 in 79 @entity1 , and degree 2 in 7. CT scan was made in 56 @entity1 , MRI in 24 and MRM in 6 before operation. Myelography was performed in 61 @entity1 , and CTM in 6. Stenosis and spondylolisthesis located between L(4) and L(5) in 49 @entity1 , between L(3) and L(4) in 6, between L(5) and S(1) in 25, between L(3) and L(4) and between L(4) and L(5) in 2, and from L(3) to S(1) in 4. The @entity1 with pathological spondylolisthesis were excluded. @entity850 of one leg was observed in 10 @entity1 , lateral recess of both legs in 22, and central canal stenosis in 54, of whom 12 @entity1 were associated with protrusion of the lumbar disc. Decompression and autograft with iliac bone and various internal fixation were performed in all @entity1 . RESULTS: The @entity1 were followed up from 8 months to 13 years, longer than 1 year (average 5.6 years) in 81 @entity1 . According to Amundsen et al, excellent results were obtained in 78 @entity1 , good in 5, and fair in 3. Spondylolisthesis was completely reduced in 70 @entity1 of degree 1 (89.9%), and in 6 @entity1 of degree 2 (85.7%). No @entity1 showed slippage aggravated. 74 @entity1 gained bone graft fusion within 3 months and 10 @entity1 within 6 months. Two @entity1 showed @entity1516 during the follow-up. Complications included internal fixation breakage in 1 @entity1 , and delayed @entity281 in 1. CONCLUSIONS: Complete decompression and bone graft fusion are the key to treatment. Decompression and internal fixation improve the symptoms of @entity1 with @entity2649 associated with spondylolisthesis. Transpedicle instrumentation can reduce spondylolisthesis and maintain the physical curve of the lumbar.
