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Journal of Korean Neurosurgical Society 1992;21(4): 405-411.
Follow-up Lumbar Spondylolisthesis after Pedicle Screw Fixation.
Dong Soo Nam, Sam Kyu Ko, Oh Lyong Kim, Yong Chul Chi, Byung Yearn Choi, Soo Ho Cho
Department of Neurosurgery, College of Medicine, Yeungnam University, Taegu, Korea.
Sixty five patients of lumbar spondylolisthesis were treated with pedicle screw fixation during last 3-years. Roy-Camille plate system has been used in 17 patients, steffee system in 41 and Puno/Winter/Byrd(PWB) system in 7. We analysed the changes of symptoms and radiological findings during follow-up observation(average 15 months). After surgery the average time for low back pain reduction was 7 months, Twenty patients(3%) complained a graft donor site pain initially, but almost except one were alleviated after 7.3 months later on an average. Radiologically the reducton degree of the displacement was from 24% on preoperative state to 12% on last follow-up and pseudoarthrosis rate was 8%. Surgical result was evaluated by our score rating system, according to that system 64.5% of the patients had satisfactory result.
Key Words: Lumbar spondylolisthesis; Pedicle screw fixation; Follow-up
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