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  • Title: Oblique retroperitoneal approach for lumbar interbody fusion from L1 to S1 in adult spinal deformity.
    Author: Kim KT, Jo DJ, Lee SH, Seo EM.
    Journal: Neurosurg Rev; 2018 Jan; 41(1):355-363. PubMed ID: 29090359.
    Abstract:
    In recent years, with advancements in surgical techniques and instrumentation, the lateral lumbar interbody fusion is being used increasingly as an alternative procedure to anterior approach. In this study, we illustrated a oblique retroperitoneal approach for lumbar interbody fusion with one incision site and tilting of the operation table in adult spinal deformity and evaluate the radiographical findings and clinical outcomes of patients treated using this technique. This study included 32 patients scheduled to undergo anterior and posterior long-level fusions for lumbar degenerative kyphosis or degenerative lumbar scoliosis. Data collected included blood loss, operative time, incision size, and perioperative complications. Pre- and postoperative radiographic parameters and clinical outcome measures were assessed. Mean follow-up time was 26.1 months. The mean blood losses were 107.4 and 102.4 ml, and the mean operative times were 116, 97, and 82 min for the patients within five levels (4 cases), four levels (18 cases), and three levels (10 cases). The mean incision sizes were 14.63, 13.82, and 12.5 cm in the patients with five, four, and three levels. The mean pelvic incidence was 50.3°. The mean preoperative sagittal vertical axis (SVA) was + 13.66 cm, and the last follow-up SVA was + 2.94 cm. The preoperative lumbar lordosis (LL) was 5.79°, and the last follow-up LL was 46.54°. The mean correction angle was 41°. The mean Cobb angle decreased from a preoperative value of 21.55° to 9.6°at the last follow-up. An oblique retroperitoneal approach is very safe, allowing reproducible access from L1 to S1 for lumbar interbody fusion in adult spinal deformity.
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