Adjacent Segment Pathology following Posterior Lumbar Interbody Fusion for Lumbar Degenerative Spondylolisthesis: A Comparison between Minimally Invasive and Conventional Open Approach

Author(s):  
Tetsuhiko Mimura ◽  
Takahiro Tsutsumimoto ◽  
Mutsuki Yui ◽  
Jun Takahashi ◽  
Shugo Kuraishi ◽  
...  
2014 ◽  
Vol 20 (5) ◽  
pp. 538-541 ◽  
Author(s):  
Shinya Okuda ◽  
Takenori Oda ◽  
Ryoji Yamasaki ◽  
Takafumi Maeno ◽  
Motoki Iwasaki

One of the most important sequelae affecting long-term results is adjacent-segment degeneration (ASD) after posterior lumbar interbody fusion (PLIF). Although several reports have described the incidence rate, there have been no reports of repeated ASD. The purpose of this report was to describe 1 case of repeated ASD after PLIF. A 62-year-old woman with L-4 degenerative spondylolisthesis underwent PLIF at L4–5. At the second operation, L3–4 PLIF was performed for L-3 degenerative spondylolisthesis 6 years after the primary operation. At the third operation, L2–3 PLIF was performed for L-2 degenerative spondylolisthesis 1.5 years after the primary operation. Vertebral collapse of L-1 was detected 1 year after the third operation, and the collapse had progressed. At the fourth operation, 3 years after the third operation, vertebral column resection of L-1 and replacement of titanium mesh cages with pedicle screw fixation between T-4 and L-5 was performed. Although the patient's symptoms resolved after each operation, the time between surgeries shortened. The sacral slope decreased gradually although each PLIF achieved local lordosis at the fused segment.


2018 ◽  
Vol 8 (7) ◽  
pp. 722-727 ◽  
Author(s):  
Shinya Okuda ◽  
Tomoya Yamashita ◽  
Tomiya Matsumoto ◽  
Yukitaka Nagamoto ◽  
Tsuyoshi Sugiura ◽  
...  

Study Design: Retrospective study. Objective: There have been few reports of adjacent segment disease (ASD) after posterior lumbar interbody fusion (PLIF) with large numbers and long follow-up. The purpose of this study was to investigate (1) ASD incidence and time periods after primary PLIF, (2) repeat ASD incidence and time periods, and (3) ASD incidence and time periods by fusion length, age, and preoperative pathologies. Methods: A total of 1000 patients (average age 67 years, average follow-up 8.3 years) who underwent PLIF for degenerative lumbar disorders were reviewed. ASD was defined as a symptomatic condition in which revision surgery was required. Results: The overall ASD rate was 9.0%, and the average ASD period was 4.7 years after primary surgery. With respect to clinical features of ASD, degenerative spondylolisthesis at the cranial fusion segment was the most frequent. In terms of repeat ASD, second and third ASD incidences were 1.1% and 0.4%, respectively. As for ASD by fusion length, age, and preoperative pathologies, ASD incidence was increased by fusion length, while the time period to ASD was significantly shorter in elderly patients and those with degenerative lumbar scoliosis. Conclusions: In the present study, the overall ASD incidence was 9.0%, and the average ASD period was 4.7 years after primary operation. Second and third ASD incidences were 1.1% and 0.4%, respectively. Fusion length affected the ASD incidence, while aging factor and preoperative pathology affected the ASD time period.


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