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KMID : 0388720110180030140
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Journal of Korean Society of Spine Surgery
2011 Volume.18 No. 3 p.140 ~ p.145
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Clinical Results about More than 5 Years Follow-up after Open Discectomy
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Soh Jae-Wan
Lee Jae-Chul
Koo Hyung-Mo
Jang Gill-Woong
Shin Byung-Joon
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Abstract
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Study Design: Retrospective study.
Objectives: We analyzed to verify clinical result and recurrence of long term follow-up after open lumbar discectomy.
Summary of the Literature Review: There are many reports concerning the clinical result of open discectomy. However, long-term result is not frequently reported.
Materials and Methods: From 1989 to 2000, 289 patients underwent open discectomies. 142 patients who was followed more than 5 years were enrolled in this study. Follow-up rate, clinical outcome were analyzed as gender, age at the operation and operated level. Re-operation rate was analyzed as gender, age at the operation, operated level divided into same level-same side, same level-contralateral side and other level and the time at reoperation. Clinical outcomes were evaluated by Kim and Kim criteria.
Results: More than 5 years follow-up rate was 49.1%. Average follow-up period were 99.2 months. Clinically successful result was obtained in 75.4%, and it was not related with gender, age at the operation and operated level. Reoperations were needed in 21 patients(14.8%). Reoperation rate was not related with gender, age at the operation. Same level-same side reherniation were frequent before 6 months after first surgery, but other side and different level were similar more than 2 years after first surgery.
Conclusions: Our clinical result was acceptable(75.4%). Main cause of reoperations before 6 months after first surgery was recurrence at the same level and same side, but cause of reoperation more than 2 years after first surgery were herniation at the other side and different level increased with time.
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KEYWORD
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Lumbar spine, Herniated intervertebral disc, Open discectomy, Reoperation
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