The roentgenographic manifestations and clinical features of lumbar spinal stenosis with special emphasis on the superior articular process

1978 ◽  
Vol 16 (1) ◽  
pp. 378-380 ◽  
Author(s):  
K. Y. Chynn ◽  
I. Altman ◽  
W. I. Shaw ◽  
N. Finby
2013 ◽  
Vol 133 (9) ◽  
pp. 1243-1248 ◽  
Author(s):  
Yoshiro Nanjo ◽  
Hideki Nagashima ◽  
Toshiyuki Dokai ◽  
Yuki Hamamoto ◽  
Hirokazu Hashiguchi ◽  
...  

1999 ◽  
Vol 34 (3) ◽  
pp. 541 ◽  
Author(s):  
Sung Soo Chung ◽  
Chong Suh Lee ◽  
Saeng Guk Lee ◽  
Hee Joon Choi ◽  
Bong Jin Park

2020 ◽  
Vol 9 (1) ◽  
pp. 214
Author(s):  
Sooho Lee ◽  
Taeha Lim ◽  
Young-Seob Lim ◽  
Young Uk Kim

Hypertrophy of facet joints is associated with a high risk of central lumbar spinal stenosis (CLSS). However, no research has reported the effect of inferior articular process hypertrophy in CLSS. We hypothesize that the inferior articular process’s cross-sectional area (IAPCSA) is larger in patients with CLSS compared to those without CLSS. Data on IAPCSA were obtained from 116 patients with CLSS. A total of 102 control subjects underwent lumbar spine magnetic resonance imaging (LS-MRI) as part of a routine medical examination. Axial T1-weighted images were obtained from the two groups. Using an imaging analysis system, we investigated the cross-sectional area of the inferior articular process. The average IAPCSA was 70.97 ± 13.02 mm2 in control subjects and 88.77 ± 18.52 mm2 in patients with CLSS. CLSS subjects had significantly greater levels of IAPCSA (p < 0.001) than controls. A receiver operating characteristic (ROC) curve was plotted to determine the validity of IAPCSA as a predictor of CLSS. The most suitable cut-off point of IAPCSA for predicting CLSS was 75.88 mm2, with a sensitivity of 71.6%, a specificity of 68.6%, and an area under the curve (AUC) of 0.78 (95% CI: 0.72–0.84). Greater IAPCSA levels were associated with a higher incidence of CLSS. These results demonstrate that IAPCSA is a useful morphological predictor in the evaluation of CLSS.


2021 ◽  
Vol 8 ◽  
Author(s):  
Jianzhong Xu ◽  
Yong Hu

Introduction: Redundant nerve roots (RNRs) are common finding in lumbar spinal stenosis patients. Up to now, many relevant studies were carried out on the mechanism, pathogenic factors, and clinical features of redundant nerve roots. However, there are few studies on the surgical methods. In this study, posterior lumbar interbody fusion and internal fixations were used in 30 patients with RNRs in our hospital. Moreover, we also proposed new ideas about different types and subtypes of RNRs using patterns and their corresponding MRI images.Methods: Thirty patients with lumbar spinal stenosis and RNRs were enrolled in this study and underwent surgery between January 2009 and December 2014. Redundant nerve roots are identified as elongated, tortuous, or serpiginous nerve roots present in the subarachnoid space on sagittal T2-weighted magnetic resonance imaging (MRI) studies. Patients were treated with posterior decompression, intervertebral disc resection, and instrumented interbody fusion. The age, sex, disease course, operative time, intraoperative blood loss, operative segments were recorded. Outcome measures recorded to identify symptom improvement included pre-operative and post-operative visual analog scale (VAS), pre-operative and post-operative Oswestry Disability Index (ODI) and pre-operative and post-operative Japanese Orthopedic Association (JOA) scores.Results: VAS back pain, VAS leg pain VAS, ODI, and JOA with standard deviations were 6.4 ± 0.9, 7.1 ± 0.8, 43.0 ± 2.2, and 10.3 ± 2.6, respectively. At 3 months post-operatively, VAS back pain, VAS leg pain VAS, ODI, and JOA with standard deviations were 1.4 ± 0.5, 1.6 ± 0.6, 13.0 ± 1.6, and 25.0 ± 1.8, respectively. Nerve redundancy resolved in all cases on post-operative MRI.Conclusion: Posterior lumbar laminectomy and instrumented interbody fusion relieves low back and leg pain in patients with lumbar spinal stenosis and RNRs and can alleviate the tortuous appearance of the cauda equina in the decompressed segment.


Spine ◽  
2020 ◽  
Vol 45 (17) ◽  
pp. E1105-E1110
Author(s):  
Sachika Matsuo ◽  
Mamoru Kawakami ◽  
Masakazu Minetama ◽  
Masafumi Nakagawa ◽  
Masatoshi Teraguchi ◽  
...  

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