Foraminal stenosis as a cause of postdiscectomy syndrome

2021 ◽  
Author(s):  
Haydar Gok ◽  
Suat Erol Celik ◽  
Yunus Kurtulus ◽  
Selim Seker ◽  
Defne Gurbuz
Keyword(s):  
Foraminal Stenosis ◽  
Postdiscectomy Syndrome

Total uncinectomy of the cervical spine with an osteotome: technical note and intraoperative video

2019 ◽  
Vol 31 (6) ◽  
pp. 831-834 ◽  
Author(s):  
Anand H. Segar ◽  
Alexander Riccio ◽  
Michael Smith ◽  
Themistocles S. Protopsaltis
Keyword(s):  
Vertebral Artery ◽  
High Speed ◽  
Thermal Injury ◽  
Technical Note ◽  
Uncinate Process ◽  
Foraminal Stenosis ◽  
Cervical Kyphosis ◽  
Kyphosis Correction ◽  
Direct Injury ◽  
High Speed Burr

Total uncinate process resection or uncinectomy is often required in the setting of severe foraminal stenosis or cervical kyphosis correction. The proximity of the uncus to the vertebral artery, nerve root, and spinal cord makes this a challenging undertaking. Use of a high-speed burr or ultrasonic bone dissector can be associated with direct injury to the vertebral artery and thermal injury to the surrounding structures. The use of an osteotome is a safe and efficient method of uncinectomy. Here the authors describe their technique, which is illustrated with an intraoperative video.

Disc displacement patterns in lumbar anterior spondylolisthesis: contribution of foraminal stenosis

2009 ◽  
Vol 33 (5) ◽  
pp. 414
Author(s):  
P.J. MacMahon ◽  
D.H. Taylor ◽  
D. Duke ◽  
D.D. Brennan ◽  
S.J. Eustace
Keyword(s):  
Foraminal Stenosis ◽  
Disc Displacement ◽  
Displacement Patterns

scholarly journals Factors Predicting the Success of Adhesiolysis Using a Steerable Catheter in Lumbar Failed Back Surgery Syndrome: A Retrospective Study

2021 ◽  
Vol 10 (5) ◽  
pp. 913
Author(s):  
Ji Yeong Kim ◽  
Yong Ho Lee ◽  
Subin Yoo ◽  
Ji Young Kim ◽  
Mina Joo ◽  
...  
Keyword(s):  
Poor Response ◽  
Failed Back Surgery Syndrome ◽  
Foraminal Stenosis ◽  
Outer Diameter ◽  
Lumbar Surgery ◽  
First Line ◽  
Failed Back Surgery ◽  
Back Surgery ◽  
Reasonable Evidence ◽  
Reduction Effect

Failed back surgery syndrome (FBSS) is a commonly encountered disease after lumbar surgery. There are many cases where it is difficult to choose a treatment because no specific cause can be found. Nevertheless, according to recent reports, adhesiolysis has shown reasonable evidence. However, considering its poor cost-effectiveness, adhesiolysis cannot be used as the first line of treatment. FBSS patients often suffer from chronic pain; accordingly, they become frustrated when this treatment produces a poor response. Therefore, before the procedure, the target group must be selected carefully. We sought to identify the pre-procedure factors predicting the effect of adhesiolysis in FBSS. A total of 150 patients were evaluated and analyzed retrospectively. Of these 150 patients, 69 were classified as responders three months after the procedure (46%). The outer diameter of the catheter during the procedure and grade of foraminal stenosis were correlated with the procedure effect. In conclusion, of the 2.1 mm diameter of the catheter, 1.7 mm of it was used during the procedure, and the milder the foraminal stenosis, the greater the pain reduction effect was three months after the procedure.

Is multidetector computed tomography comparable to magnetic resonance imaging for assessment of lumbar foraminal stenosis?

2016 ◽  
Vol 58 (2) ◽  
pp. 197-203
Author(s):  
Woo Young Kang ◽  
Joong Mo Ahn ◽  
Joon Woo Lee ◽  
Eugene Lee ◽  
Yun Jung Bae ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Multidetector Computed Tomography ◽  
Excellent Agreement ◽  
Observer Agreement ◽  
Kappa Statistics ◽  
Foraminal Stenosis ◽  
Resonance Imaging ◽  
Lumbar Foraminal Stenosis

Background Both multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) are used for assessment of lumbar foraminal stenosis (LFS). Therefore, it is relevant to assess agreement between these imaging modalities. Purpose To determine intermodality, inter-, and intra-observer agreement for assessment of LFS on MDCT and MRI. Material and Methods A total of 120 foramina in 20 patients who visited our institution in January and February 2014 were evaluated by six radiologists with different levels of experience. Radiologists evaluated presence and severity of LFS on sagittal CT and MR images according to a previously published LFS grading system. Intermodality agreement was analyzed by using weighted kappa statistics, while inter- and intra-observer agreement were analyzed by using intraclass correlation coefficients (ICCs) and kappa statistics. Results Overall intermodality agreement was moderate to good (kappa, 0.478–0.765). In particular, two professors and one fellow tended to overestimate the degree of LFS on CT compared with MRI. For inter-observer agreement of all six observers, ICCs indicated excellent agreement for both CT (0.774) and MRI (0.771), while Fleiss’ kappa values showed moderate agreement for CT (0.482) and MRI (0.575). There was better agreement between professors and fellows compared with residents. For intra-observer agreement, ICCs indicated excellent agreement, while kappa values showed good to excellent agreement for both CT and MRI. Conclusion MDCT was comparable to MRI for diagnosis and assessment of LFS, especially for experienced observers. However, there was a tendency to overestimate the degree of LFS on MDCT compared with MRI.

Jugular Foraminal Stenosis in Crouzon Syndrome

1996 ◽  
Vol 25 (5) ◽  
pp. 252-255 ◽  
Author(s):  
Dolores Martinez-Perez ◽  
Douglas L. Vander Woude ◽  
Patrick D. Barnes ◽  
Michael Scott ◽  
John B. Mulliken
Keyword(s):  
Foraminal Stenosis ◽  
Crouzon Syndrome

scholarly journals Lumbar radiculopathy caused by foraminal stenosis in rheumatoid arthritis

2010 ◽  
Vol 116 (2) ◽  
pp. 133-137 ◽  
Author(s):  
Tomoaki Koakutsu ◽  
Naoki Morozumi ◽  
Yutaka Koizumi ◽  
Yushin Ishii
Keyword(s):  
Rheumatoid Arthritis ◽  
Foraminal Stenosis ◽  
Lumbar Radiculopathy

scholarly journals Association of complete uncinate process removal on 2-year assessment of radiologic outcomes: subsidence and sagittal balance in patients receiving one-level anterior cervical discectomy and fusion

2020 ◽  
Author(s):  
Sung Hyun Noh ◽  
Jeong Yoon Park ◽  
Sung Uk Kuh ◽  
Dong Kyu Chin ◽  
Keun Su Kim ◽  
...  
Keyword(s):  
Sella Turcica ◽  
Uncinate Process ◽  
Disc Height ◽  
Foraminal Stenosis ◽  
Sagittal Vertical Axis ◽  
Arm Pain ◽  
T1 Slope ◽  
Cervical Sagittal Alignment ◽  
Post Operation

Abstract Background: Many patients with cervical radiculopathy experience stenosis of the neural foramens due to cumulative osteophyte or uncovertebral joint hypertrophy. For cervical foraminal stenosis, complete uncinate process resection (UPR) is often conducted concurrently with anterior discectomy and fusion (ACDF). The aim of this study was to assess the clinical and radiological outcomes of ACDF with complete UPR versus ACDF without UPR. Methods: In total, 105 patients who performed one-level ACDF with a cage-and-plate construct between 2011 and 2015 were retrospectively reviewed. Among them, 37 patients had ACDF with complete UPR, and 68 patients had ACDF without UPR. Radiologic outcomes of disc height, C2–C7 lordosis, T1 slope, C2–C7 sagittal vertical axis (SVA), center of the sella turcica–C7 SVA (St-SVA), spino-cranial angle (SCA), and fusion rate were evaluated on plain X-ray at pre-operation, immediately post-operation, and at 2-year follow-up. For statistically matched pairs analysis, ACDF with UPR group (24 patients) and ACDF without UPR (24 patients) were compared.Results: All of the clinical parameters improved at the 2-year follow up (P<0.0001). Improvement in visual analogue scale (VAS) scores for arm pain was significantly improved in the ACDF with complete UPR group immediately post-operation. All cervical sagittal parameters, including cervical lordosis, segmental angle, disc height, C2-C7 SVA, St-SVA, T1 slope, and SCA, except for preoperative St-SVA, SCA, and disc height of 2 years follow-up, were similar between the ACDF with complete UPR and ACDF without UPR groups. Differences in disc height, C2-C7 SVA, and SCA at 2-year follow up after preoperative examination, however, were statistically significant (p<0.05). Subsidence occurred in 9 patients (ACDF with complete UPR: 8 cases [33%] versus ACDF without UPR: 1 cases [4%]; p < 0.05). Conclusions: Cervical sagittal alignment after ACDF with complete UPR is not significantly different from that achieved with ACDF without UPR. However, subsidence appears to occur more often after ACDF with complete UPR than after ACDF without UPR, although with little to no clinical impact. More precise and careful selection of patients is needed when deciding on additional complete UPR.

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