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논문 기본 정보

자료유형
학술저널
저자정보
Hiroaki Nakashima (Orthopedic Surgery Konan Kosei Hospital Konan Japan) Tokumi Kanemura (Orthopedic Surgery Konan Kosei Hospital Konan Japan) Kotaro Satake (Department of Orthopaedic Surgery Konan Kosei Hospital Konan Japan) Yoshimoto Ishikawa (Orthopedic Surgery Konan Kosei Hospital Konan Japan) Jun Ouchida (Department of Orthopaedic Surgery Konan Kosei Hospital Konan Japan) Naoki Segi (Nagoya University Graduate School of Medicine) Hidetoshi Yamaguchi (Nagoya University Graduate School of Medicine) Shiro Imagama (Nagoya University Graduate School of Medicine Nagoya Japan)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.13 No.4
발행연도
2019.1
수록면
584 - 591 (8page)

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Study Design: Prospective cohort study. Purpose: This study aimed to identify risk factors for unplanned second-stage decompression for postoperative neurological deficit after indirect decompression using lateral lumbar interbody fusion (LLIF) with posterior fixation. Overview of Literature: Indirect lumbar decompression with LLIF has been used as a minimally invasive alternative to direct decompression to treat degenerative lumbar diseases requiring neural decompression. However, evidence on the prevalence of neurological deficits caused by spinal canal stenosis after indirect decompression is limited. Methods: This study included 158 patients (mean age, 71.13±7.98 years; male/female ratio, 67/91) who underwent indirect decompression with LLIF and posterior fixation. Indirect decompression was performed at 271 levels (mean level, 1.71±0.97). Logistic regression analysis was used to identify the risk factors for postoperative neurological deficits. The variables included were age, sex, body mass index, presence of primary diseases, diabetes mellitus, preoperative motor deficit, levels operated on, preoperative severity of lumbar stenosis, and preoperative Japanese Orthopedic Association (JOA) score. Results: Postoperative neurological deficit due to spinal canal stenosis occurred in three patients (1.9%). Spinal stenosis due to hemodialysis (p<0.001), ligament ossification (p<0.001), presence of preoperative motor paralysis (p<0.001), low JOA score (p=0.004), and severe canal stenosis (p=0.02) were significantly more frequent in the paralysis group. Conclusions: Severe preoperative canal stenosis and neurological deficit were identified as risk factors for postoperative neurological deterioration caused by spinal canal stenosis. Additionally, uncommon diseases, such as spinal stenosis due to hemodialysis and ligament ossification, increased the risk of postoperative neurological deficit; therefore, in such cases, indirect decompression is contraindicated.

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