891 results match your criteria Lumbosacral Spondylolisthesis


[Advances in the study of anatomy and biomechanics of lumbosacral transitional vertebrae].

Zhonghua Wai Ke Za Zhi 2019 Feb;57(2):156-160

Department of Spine Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou 350007, China.

Lumbosacral transitional vertebrae (LSTV) is a common phenomena of developmental anomaly, which is characterized by anatomic variation and biomechanical changes. LSTV is often accompanied with low back pain, lumbar disc herniation, lumbar spinal stenosis, lumbar spondylolisthesis and other spinal diseases. The diagnosis of LSTV has a great significance for proper treatment process. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0529-5815.2019.02.019DOI Listing
February 2019
1 Read

Radiographic Analysis of Minimally Invasive Transforaminal Lumbar Interbody Fusion versus Conventional Open Surgery on Sagittal Lumbar-Pelvic Alignment for Degenerative Spondylolisthesis.

World Neurosurg 2019 Jan 17. Epub 2019 Jan 17.

Department of Spine Surgery, Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.

Objective: To compare the impact of minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) with open posterior lumbar interbody fusion (PLIF) on sagittal lumbar-pelvic radiographic parameters for degenerative spondylolisthesis (DS).

Methods: Of 48 patients with L4 single segmental DS, 25 underwent MIS-TLIF with Quadrant system and 23 underwent conventional open PLIF. Comparisons of data from the preoperative and final follow-up standing lateral lumbar x-rays, with the bilateral femoral heads, of the 2 groups were conducted using the following parameters: slip percentage (SP), lumbar lordosis (LL), pelvic incidence, pelvic tilt (PT), sacral slope, lumbosacral angle, slip angle (SA), and the L1 axis and S1 distance (LASD). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750193008
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http://dx.doi.org/10.1016/j.wneu.2019.01.011DOI Listing
January 2019
3 Reads

Short Lumbosacral Decompression Plus Fixation Does Not Change the Spinopelvic Balance on Patients With Moderate Degenerative Spondylolisthesis and Associated Spinal Stenosis.

Spine Deform 2019 Mar;7(2):346-355

Orthopaedics Department, General Hospital of Patras, Greece.

Study Design: A retrospective cohort study.

Objectives: To investigate whether decompression plus short segment lumbosacral fixation changes the sagittal baseline spinopelvic parameters in patients with moderate degenerative spondylolisthesis (DS) and associated degenerative lumbar spinal stenosis (DLSS).

Summary Of Background Data: Spinal decompression and fusion are commonly performed in DS with associated DLSS. Read More

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http://dx.doi.org/10.1016/j.jspd.2018.08.016DOI Listing
March 2019
1 Read

Surgical Treatment of Developmental Spondylolisthesis: Contemporary Series With a Two-Surgeon Team.

Spine Deform 2019 Mar;7(2):275-285

Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA. Electronic address:

Study Design: Retrospective case series.

Objectives: To report operative outcomes of contemporary surgical treatment of spondylolisthesis in the pediatric population.

Summary Of Background Data: Surgical treatment of developmental spondylolisthesis is controversial, with limited data on complication and reoperation rates. Read More

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http://dx.doi.org/10.1016/j.jspd.2018.08.004DOI Listing
March 2019
2 Reads

Identification of abnormalities in the lumbar nerve tract using diffusion-weighted magnetic resonance neurography.

Eur Spine J 2019 Jan 17. Epub 2019 Jan 17.

Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.

Introduction: Abnormalities of the lumbar nerve tract caused by congenital variations or high nerve root take-off angles are difficult to visualize. Diffusion-weighted magnetic resonance neurography (DW-MRN) has recently been introduced for imaging of the lumbosacral region. The aims of this study were to identify lumbar nerve tract abnormalities caused by congenital variation or a high nerve root take-off angle using DW-MRN and to assess the diagnostic value of this imaging modality. Read More

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http://link.springer.com/10.1007/s00586-018-05867-1
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http://dx.doi.org/10.1007/s00586-018-05867-1DOI Listing
January 2019
5 Reads

Determination of spinopelvic parameters in degenerative lumbar spondylolisthesis patients undergoing lumbosacral spine fusion surgery: The lesson learnt.

Turk Neurosurg 2018 Sep 11. Epub 2018 Sep 11.

Faculty of Medicine Ramathibodi Hospital.

Aim: Degenerative lumbar spondylolisthesis is a spinal disorder characterized by degeneration with dysfunction of the intervertebral discs. It typically occurs in motion segments and is prevalent in the elderly population. The hallmark of degenerative lumbar spondylolisthesis is spinal stenosis with claudicating presentation. Read More

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http://dx.doi.org/10.5137/1019-5149.JTN.23442-18.1DOI Listing
September 2018
1 Read

Posterior L5-S1 transdiscal screws for high grade spondylolisthesis - a systematic review.

Rev Assoc Med Bras (1992) 2018 Dec;64(12):1147-1153

Professor - Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.

Objective: The surgical management of high-grade lumbar spondylolisthesis (HGLS) is complex and aims to achieve both a solid fusion that is able to support the high shear forces of the lumbosacral junction, as well as neural decompression. We performed a systematic literature review of the safety and efficacy of posterior transdiscal (PTD) screw fixation from L5S1 for HGLS and its variations.

Methods: A systematic literature review following the PRISMA guidelines was performed in the PubMed database of the studies describing the use of PTD screw fixation for HGLS. Read More

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S
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http://dx.doi.org/10.1590/1806-9282.64.12.1147DOI Listing
December 2018
2 Reads

Two-level reverse Bohlman transsoseous approach for treatment of symptomatic pseudarthrosis.

Br J Neurosurg 2018 Dec 6:1-4. Epub 2018 Dec 6.

a Department of Neurological Surgery , Oregon Health & Science University , Portland , OR , USA.

Surgical treatment for high-grade spondylolisthesis with high sacral slope remains controversial and no definitive gold standard procedure has been identified. The Bohlman technique, in which a fibular strut is reamed posteriorly across the L5-S1 disc space in an oblique, inferior to superior trajectory, has been increasingly utilized. Recently, a Reverse Bohlman technique has been described, in which a graft is reamed anteriorly across a single disc space in a superior to inferior trajectory. Read More

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http://dx.doi.org/10.1080/02688697.2018.1525481DOI Listing
December 2018
3 Reads

S1 Pedicle Subtraction Osteotomy for Fixed Sagittal Imbalance and Lumbosacral Kyphosis.

Clin Spine Surg 2018 Dec 4. Epub 2018 Dec 4.

Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, NY.

S1 pedicle subtraction osteotomies (PSOs) are indicated in patients with fixed, high-grade L5-S1 spondylolisthesis or kyphosis secondary to a sacral fracture, who present with severe sagittal imbalance. Unlike lumbar PSOs, sacral osteotomies are rare, and there is a paucity of literature outlining techniques. Here, we present the indications, planning, technique, and outcomes for S1 PSOs. Read More

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http://dx.doi.org/10.1097/BSD.0000000000000752DOI Listing
December 2018
11 Reads

Bone-Preserving Decompression Procedures Have a Minor Effect on the Flexibility of the Lumbar Spine.

J Korean Neurosurg Soc 2018 Nov 30;61(6):680-688. Epub 2018 Oct 30.

IRCCS Galeazzi Orthopedic Institute, Milano, Italy.

Objective: To mitigate the risk of iatrogenic instability, new posterior decompression techniques able to preserve musculoskeletal structures have been introduced but never extensively investigated from a biomechanical point of view. This study was aimed to investigate the impact on spinal flexibility caused by a unilateral laminotomy for bilateral decompression, in comparison to the intact condition and a laminectomy with preservation of a bony bridge at the vertebral arch. Secondary aims were to investigate the biomechanical effects of two-level decompression and the quantification of the restoration of stability after posterior fixation. Read More

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http://jkns.or.kr/journal/view.php?doi=10.3340/jkns.2018.002
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http://dx.doi.org/10.3340/jkns.2018.0023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280058PMC
November 2018
8 Reads

High Sacral Endplate Inclination Vector Forces Are Associated with Pars Fracture-Mediated Lumbosacral Spondylolisthesis.

World Neurosurg 2019 Feb 1;122:e790-e794. Epub 2018 Nov 1.

Department of Neurosurgery, Harvard Medical School, Boston, Massachusetts, USA. Electronic address:

Objective: Lumbar spondylolisthesis can be related to facet arthropathy and disc degeneration or to a fracture of the pars interarticularis, but the mechanistic underpinnings of spondylolisthesis remain unclear. We posit that high sacral slope and body weight increase sacral inclination vector forces, which leads to pars fractures and exacerbates risk for spondylolisthesis.

Methods: To investigate this hypothesis, we measured the sacral slope, body weight, and S1 endplate vector forces for patients who underwent L5-S1 fusion for grade I spondylolisthesis. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.10.148DOI Listing
February 2019
2 Reads

The impact of surgical reduction of high-grade lumbosacral spondylolisthesis on proximal femoral angle and qualityof life.

Spine J 2018 Oct 5. Epub 2018 Oct 5.

University of Montreal, Montreal, Québec Canada; Division of Orthopedic Surgery, CHU Sainte-Justine, Montreal, Québec Canada; Hôpital du Sacré-Coeur, Montreal, Québec Canada. Electronic address:

Backgound Context: Abnormal proximal femoral angle (PFA) was recently found to be associated with deteriorating sagittal balance and quality of life (QoL) in high-grade spondylolisthesis (HGS). However, the influence of PFA on the QoL of patients undergoing surgery remains unknown.

Purpose: This study compares the pre- and postoperative measurements of sagittal balance including PFA in patients with lumbosacral HGS after surgery. Read More

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http://dx.doi.org/10.1016/j.spinee.2018.10.001DOI Listing
October 2018
13 Reads

Degenerative Lumbar Spondylolisthesis: Biochemical Aspects and Evaluation of Stabilization Surgery Extent in Terms of Adjacent Segment Disease Theory.

World Neurosurg 2019 Jan 29;121:e554-e565. Epub 2018 Sep 29.

Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia.

Objective: In lumbar degenerative spondylolisthesis (DSL), the criteria and extent of surgical treatment have not been strictly defined owing to the adjacent segment disease theory and unclear molecular pathogenesis. The present study analyzed the clinical and radiographic findings of patients after lower lumbar fusion surgery with single and 2-level DSL and explored the inflammatory mediator's role in DSL evolution and symptoms.

Methods: The prospective follow-up of patients with DSL, stratified by the stabilization extent (L4-L5, L5-S1, and L4-S1), included the Back Illness Pain and Disability 9-item questionnaire and native and dynamic radiographs to evaluate the intervertebral disc height and adjacent segments' angular motion. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.163DOI Listing
January 2019
4 Reads

Long-Term Experience With Reduction Technique in High-Grade Spondylolisthesis in the Young.

Int J Spine Surg 2018 Jun 15;12(3):399-407. Epub 2018 Aug 15.

Apollo Hospitals, Chennai, India.

Background: Surgical management of high-grade spondylolisthesis in the young is not only challenging but also controversial, from in-situ fusion to complete reduction. It is fraught with dangers such as neurological injury, pseudoarthrosis, and progressive deformity with subsequent global sagittal imbalance. We describe our experience of progressive reduction technique and restoration of lumbosacral alignment. Read More

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http://dx.doi.org/10.14444/5047DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6159655PMC
June 2018
3 Reads

The Role of Sacral Slope in the Progression of a Bilateral Spondylolytic Defect at L5 to Spondylolisthesis: A Biomechanical Investigation Using Finite Element Analysis.

Global Spine J 2018 Aug 16;8(5):460-470. Epub 2017 Nov 16.

Spine Service, Department of Orthopaedic Surgery, St. George & Sutherland Clinical School, University of New South Wales Australia, Kogarah, Sydney NSW, Australia.

Study Design: A biomechanical study using finite element analysis.

Objectives: The main objective of this study was to investigate the role of sacral slope in the progression of a L5 bilateral spondylolytic defect to spondylolisthesis.

Methods: A 3-dimensional model of lumbosacral spine was built using computed tomography (CT) data procured from an anonymized healthy male subject. Read More

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http://journals.sagepub.com/doi/10.1177/2192568217735802
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http://dx.doi.org/10.1177/2192568217735802DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149045PMC
August 2018
3 Reads

Spontaneous Atraumatic Bilateral Pedicle Insufficiency Fractures.

Can J Neurol Sci 2018 Nov 26;45(6):717-720. Epub 2018 Sep 26.

1Ottawa Combined Adult Spinal Surgery Program,The Ottawa Hospital,Ottawa,Ontario,Canada.

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http://dx.doi.org/10.1017/cjn.2018.329DOI Listing
November 2018
3 Reads

Comparison of minimally invasive decompression and combined minimally invasive decompression and fusion in patients with degenerative spondylolisthesis with instability.

J Clin Neurosci 2018 Nov 25;57:79-85. Epub 2018 Aug 25.

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.

Posterior lumbar interbody fusion with cortical bone trajectory (CBT-PLIF) is a form of minimally invasive decompression and fusion, whereas microendoscopic laminotomy (MEL) is a form of minimally invasive decompression surgery. No study has compared the clinical outcomes of the two methods for patients who have degenerative spondylolisthesis (DS) with instability. In this study, CBT-PLIF and MEL were both offered to 64 patients who met the inclusion criteria. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.08.032DOI Listing
November 2018
2 Reads

The influence of spinopelvic parameters on adjacent-segment degeneration after short spinal fusion for degenerative spondylolisthesis.

J Neurosurg Spine 2018 Oct 20;29(4):407-413. Epub 2018 Jul 20.

Objective: Spinopelvic parameters, such as the pelvic incidence (PI) angle, sacral slope angle, and pelvic tilt angle, are important anatomical indices for determining the sagittal curvature of the spine and the individual variability of the lumbar lordosis (LL) curve. The aim of this study was to investigate the influence of spinopelvic parameters and LL on adjacent-segment degeneration (ASD) after short lumbar and lumbosacral fusion for single-level degenerative spondylolisthesis.

Methods: The authors retrospectively reviewed the records of all short lumbar and lumbosacral fusion surgeries performed between August 2003 and July 2010 for single-level degenerative spondylolisthesis in their orthopedic department. Read More

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http://dx.doi.org/10.3171/2018.2.SPINE171160DOI Listing
October 2018
11 Reads

The reliability of motor evoked potentials to predict dorsiflexion injuries during lumbosacral deformity surgery: importance of multiple myotomal monitoring.

Spine J 2019 Mar 17;19(3):377-385. Epub 2018 Jul 17.

Department of Anesthesia & Perioperative Care, University of California, San Francisco, San Francisco, CA 94143, USA.

Study Design: Case-control analysis of transcranial motor evoked potential (MEP) responses and clinical outcome.

Objective: To determine the sensitivity and specificity of MEPs to predict isolated nerve root injury causing dorsiflexion weakness in selected patients having complex lumbar spine surgery.

Summary Of Background Data: The surgical correction of distal lumbar spine deformity involves significant risk for damage to neural structures that control muscles of ankle and toe dorsiflexion. Read More

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http://dx.doi.org/10.1016/j.spinee.2018.07.006DOI Listing
March 2019
24 Reads

Stand-alone Anterior Lumbar Interbody, Transforaminal Lumbar Interbody, and Anterior/Posterior Fusion: Analysis of Fusion Outcomes and Costs.

Orthopedics 2018 Sep 16;41(5):e655-e662. Epub 2018 Jul 16.

Fusion outcomes and costs of stand-alone anterior lumbar interbody fusion (ALIF), transforaminal lumbar interbody fusion (TLIF) in association with posterior fusion, and anterior/posterior (A/P) fusion were compared using clinical, radiographic, and billing data. Adult patients with symptomatic 1- or 2-level degenerative disk disease in isolation or in association with a grade 1 or 2 degenerative or lytic spondylolisthesis and canal and/or foraminal stenosis who underwent elective stand-alone ALIF, TLIF, or A/P fusion were compared. The analysis focused primarily on fusion rates and costs and secondarily on radiographic and clinical parameters. Read More

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http://dx.doi.org/10.3928/01477447-20180711-06DOI Listing
September 2018
9 Reads

Expectations for Postoperative Improvement in Health-Related Quality of Life in Young Patients With Lumbosacral Spondylolisthesis: A Prospective Cohort Study.

Spine (Phila Pa 1976) 2019 Feb;44(3):E181-E186

Hôpital du Sacré-Coeur de Montréal, Montréal, Quebec, Canada.

Study Design: Prospective multicenter study of the changes in Scoliosis Research Society Outcome Questionaire 22 (SRS-22) scores for 78 patients younger than 25 years old surgically treated for lumbosacral spondylolisthesis OBJECTIVE.: Report the change of health-related quality of life (HRQOL) in patients younger than 25 years after surgical treatment of lumbosacral spondylolisthesis.

Summary Of Background Data: There is a paucity of data with regard to the influence of surgical treatment on the HRQOL of patients with lumbosacral spondylolisthesis. Read More

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http://dx.doi.org/10.1097/BRS.0000000000002788DOI Listing
February 2019

The Challenge of Creating Lordosis in High-Grade Dysplastic Spondylolisthesis.

Neurosurg Clin N Am 2018 Jul;29(3):375-387

Department of Orthopaedic Surgery, University of Minnesota, 2450 Riverside Avenue South, Suite R200, Minneapolis, MN 55454, USA; Department of Neurosurgery, University of Minnesota, 2450 Riverside Avenue South, Suite R200, Minneapolis, MN 55454, USA. Electronic address:

High-grade dysplastic spondylolisthesis (HGDS) is a subset of L5-S1 spondylolisthesis that occurs due to dysmorphic anatomy at the lumbosacral junction, often resulting in sagittal imbalance. Enhanced understanding of global sagittal alignment has led many to preferentially treat HGDS with reduction and fusion to restore sagittal balance. The purpose of this article is to review published surgical techniques for obtaining sagittal correction in HGDS and to evaluate the current evidence regarding the associated surgical complications. Read More

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http://dx.doi.org/10.1016/j.nec.2018.03.006DOI Listing
July 2018
3 Reads

Sagittal Alignment of the Lumbar Spine.

Neurosurg Clin N Am 2018 Jul;29(3):331-339

Neurosurgery, UCSF Spine Center, 400 Parnassus Avenue, San Francisco, CA 94143, USA. Electronic address:

Alignment of the lumbar spine has an important impact on the segmental motion, degenerative pathology, and health-related quality of life. The relationship between lumbar lordosis and pelvic incidence is predictive in the pathogenesis of spinal disorders, including disk degeneration, spondylolisthesis, and adjacent segment degeneration. This article reviews the relationship between lumbar and pelvic alignment with pathology of the lumbar spine, provides goals for appropriate alignment in reconstructive surgery, and discusses strategies for effective realignment of the spine. Read More

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http://dx.doi.org/10.1016/j.nec.2018.03.009DOI Listing
July 2018
2 Reads

Spondylolisthesis is Common, Early, and Severe in Loeys-Dietz Syndrome.

J Pediatr Orthop 2018 Sep;38(8):e455-e461

Departments of Pediatrics.

Background: We studied the prevalence and treatment outcomes of spondylolisthesis in patients with Loeys-Dietz syndrome (LDS).

Methods: Clinical data and lumbosacral imaging of 138 patients with LDS were reviewed. Spondylolisthesis (L4-L5 or L5-S1) and spondylolysis were characterized by multimodal imaging and correlated with clinical data. Read More

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http://dx.doi.org/10.1097/BPO.0000000000001203DOI Listing
September 2018
5 Reads

Radiological and Clinical Comparison of Posterolateral Fusion and Transforaminal Interbody Fusion Techniques in Degenerative Lumbar Stenosis.

World Neurosurg 2018 Aug 1;116:e1060-e1065. Epub 2018 Jun 1.

Department of Neurosurgery, Health Sciences University, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey.

Objective: Fusion surgery for lumbar degenerative stenosis is an established treatment mode. Despite comparable patient-related outcomes and radiologic results, the necessity of adding interbody fusion to posterolateral fusion remains controversial. We aimed to compare the clinical and radiologic outcomes of posterolateral fusion and transforaminal interbody fusion techniques in degenerative lumbar stenosis with or without spondylolisthesis. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.05.165DOI Listing
August 2018
20 Reads

Traumatic Lumbosacral Spondyloptosis in a Pediatric Patient: Case Report and Literature Review.

Pediatr Neurosurg 2018 30;53(4):263-269. Epub 2018 May 30.

Department of Neurosurgery, School of Medicine, University of São Paulo, São Paulo, Brazil.

A 4-year-old girl was admitted to the emergency department after having been buried beneath a wall. A computed tomography scan revealed anterior grade V L5-S1 spondylolisthesis, and magnetic resonance imaging showed a traumatic rupture of the fibrous annulus of the L5-S1 intervertebral disc and lesion of the anterior longitudinal and yellow ligaments. The patient underwent anterior and posterior fixation. Read More

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http://dx.doi.org/10.1159/000488766DOI Listing
September 2018
7 Reads

[Correlation study between sagittal lumbar facet joint and degenerative lumbar spondylolisthesis].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017 Nov;31(11):1354-1357

Department of Orthopedics, the Artificial Joint Engineering Technology Research Center of Jiangxi Province, the First Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006,

Objective: To study the relationship between sagittal facet joint and degenerative lumber spondylolisthesis (DLS) by observing the changes of the lumbar facet joint angle.

Methods: Fifty-seven patients with DLS who met the inclusion criteria between January 2013 and February 2016 were collected (DLS group). There were 26 males and 31 females, with the mean age of 54. Read More

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http://dx.doi.org/10.7507/1002-1892.201705051DOI Listing
November 2017
4 Reads

Comparative Prospective Study Reporting Intraoperative Parameters, Pedicle Screw Perforation, and Radiation Exposure in Navigation-Guided versus Non-navigated Fluoroscopy-Assisted Minimal Invasive Transforaminal Lumbar Interbody Fusion.

Asian Spine J 2018 Apr 16;12(2):309-316. Epub 2018 Apr 16.

Department of Orthopaedics, Bombay Hospital & Medical Research Centre, Mumbai, India.

Study Design: Prospective cohort study.

Purpose: To compare intraoperative parameters, radiation exposure, and pedicle screw perforation rate in navigation-guided versus non-navigated fluoroscopy-assisted minimal invasive transforaminal lumbar interbody fusion (MIS TLIF).

Overview Of Literature: The poor reliability of fluoroscopy-guided instrumentation and growing concerns about radiation exposure have led to the development of navigation-guided instrumentation techniques in MIS TLIF. Read More

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http://dx.doi.org/10.4184/asj.2018.12.2.309DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5913023PMC
April 2018
5 Reads

Mild (not severe) disc degeneration is implicated in the progression of bilateral L5 spondylolysis to spondylolisthesis.

BMC Musculoskelet Disord 2018 04 2;19(1):98. Epub 2018 Apr 2.

Spine Service, Department of Orthopaedic Surgery, St. George & Sutherland Clinical School, University of New South Wales Australia, Kogarah, Sydney, NSW, 2217, Australia.

Background: Spondylolytic (or lytic) spondylolisthesis is often associated with disc degeneration at the index-level; however, it is not clear if disc degeneration is the cause or the consequence of lytic spondylolisthesis. The main objective of this computed tomography based finite element modelling study was to examine the role of different grades of disc degeneration in the progression of a bilateral L5-lytic defect to spondylolisthesis.

Methods: High-resolution computed tomography data of the lumbosacral spine from an anonymised healthy male subject (26 years old) were segmented to build a 3D-computational model of an INTACT L1-S1 spine. Read More

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http://dx.doi.org/10.1186/s12891-018-2011-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5879802PMC
April 2018
3 Reads

Hollow modular anchorage (HMA) screws for anterior transvertebral fixation in high-grade spondylolisthesis cases requiring 360 degrees in-situ fusion.

Br J Neurosurg 2018 Oct 22;32(5):474-478. Epub 2018 Mar 22.

a The Centre for Spinal Studies and Surgery , Queens Medical Centre , Nottingham , UK.

Objective: 360 degrees in-situ fusion for high-grade spondylolisthesis showed satisfying clinical long-term results. Combining anterior with posterior surgery increases fusion rates. Anteriorly inserted transvertebral HMA screws could be an alternative to strut graft constructs or cages, avoiding donor site complications. Read More

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http://dx.doi.org/10.1080/02688697.2018.1451822DOI Listing
October 2018
7 Reads

Traumatic L7 articular processes fracture and spondylolisthesis following dorsal lumbosacral laminectomy in a cat.

JFMS Open Rep 2018 Jan-Jun;4(1):2055116918760652. Epub 2018 Mar 7.

Neurology and Neurosurgery Department, Ars Veterinary Hospital, Barcelona, Spain.

Case Summary: A 12-year-old neutered male domestic shorthair cat was presented to our referral hospital with a chronic history of tenesmus and lumbosacral pain. A diagnosis of degenerative lumbosacral stenosis (DLSS) was made and a standard dorsal L7-S1 laminectomy was performed uneventfully, with complete recovery within 1 month. The cat was brought back 4 months later for investigation of lumbosacral pain after having suffered a minor traumatic event. Read More

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http://dx.doi.org/10.1177/2055116918760652DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5846939PMC
March 2018
8 Reads

Higher Improvement in Patient-Reported Outcomes Can Be Achieved After Transforaminal Lumbar Interbody Fusion for Clinical and Radiographic Degenerative Spondylolisthesis Classification Type D Degenerative Lumbar Spondylolisthesis.

World Neurosurg 2018 Jun 7;114:e293-e300. Epub 2018 Mar 7.

Department of Spine Surgery, Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China. Electronic address:

Background: Clinical and radiographic degenerative spondylolisthesis (CARDS) classification defines a distinct subset of patients with kyphotic angulation at the involved segment (type D). Research using CARDS classification to investigate motion characteristics at involved segments or patient-related outcomes (PROs) following surgical intervention is sparse. We investigated the relationship between CARDS type D spondylolisthesis and dynamic instability and PROs in type D versus non-type D spondylolisthesis. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.02.175DOI Listing
June 2018
8 Reads

Analysis of Spinopelvic Parameters with L5 as the New Sacrum after Fusion in High-Grade Spondylolisthesis: A Possible Explanation for Satisfactory Results with Fusion.

Asian Spine J 2018 Feb 7;12(1):103-111. Epub 2018 Feb 7.

Department of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, India.

Study Design: Retrospective case series.

Purpose: To correlate functional outcomes with spinopelvic parameters in patients with high-grade spondylolisthesis (HGS) treated with instrumented surgery or reduction and fusion.

Overview Of Literature: Satisfactory functional outcomes are reported with reduction and fusion strategies in HGS. Read More

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http://dx.doi.org/10.4184/asj.2018.12.1.103DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5821914PMC
February 2018
2 Reads

Two-year Outcomes from a Single Surgeon's Learning Curve Experience of Oblique Lateral Interbody Fusion without Intraoperative Neuromonitoring.

Cureus 2017 Dec 22;9(12):e1980. Epub 2017 Dec 22.

None, Miller Scientific Consulting.

Introduction Oblique lumbar interbody fusion (OLIF) is a newer procedure that avoids the psoas and lumbosacral plexus due to its oblique trajectory into the retroperitoneal space. While early experience with OLIF is reassuring, the longer-term clinical efficacy has not been well established. The purpose of this study was to describe two-year clinical outcomes with OLIF performed by a single surgeon during the learning curve without the aid of the neuromonitoring. Read More

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http://dx.doi.org/10.7759/cureus.1980DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5823485PMC
December 2017
2 Reads

Biomechanical comparison of transdiscal fixation and posterior fixation with and without transforaminal lumbar interbody fusion in the treatment of L5-S1 lumbosacral joint.

Proc Inst Mech Eng H 2018 Apr 23;232(4):371-377. Epub 2018 Feb 23.

4 Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey.

Transdiscal screw fixation is generally performed in the treatment of high-grade L5-S1 spondylolisthesis. The main thought of the study is that the biomechanical performances of the transdiscal pedicle screw fixation can be identical to standard posterior pedicle screw fixations with or without transforaminal lumbar interbody fusion cage insertion. Lumbosacral portions and pelvises of 45 healthy lambs' vertebrae were dissected. Read More

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http://dx.doi.org/10.1177/0954411918760959DOI Listing
April 2018
2 Reads
1.140 Impact Factor

Correlation Between Lumbopelvic and Sagittal Parameters and Health-Related Quality of Life in Adults With Lumbosacral Spondylolisthesis.

Global Spine J 2018 Feb 31;8(1):17-24. Epub 2017 May 31.

University of California-San Francisco, San Francisco, CA, USA.

Study Design: Secondary analysis of prospective, multicenter data.

Objective: To evaluate impact of sagittal parameters on health-related quality of life (HRQoL) in adults with lumbosacral spondylolisthesis.

Methods: Adults with unoperated lumbosacral spondylolisthesis were identified in the Spinal Deformity Study Group database. Read More

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http://dx.doi.org/10.1177/2192568217696692DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810889PMC
February 2018
4 Reads

The importance of proximal femoral angle on sagittal balance and quality of life in children and adolescents with high-grade lumbosacral spondylolisthesis.

Eur Spine J 2018 Aug 14;27(8):2038-2043. Epub 2018 Feb 14.

University of Montreal, Montreal, Canada.

Purpose: Previous studies did not specifically assess the influence of proximal femoral angle (PFA) on sagittal balance in high-grade spondylolisthesis (HGS). In addition, the relationship between PFA and quality of life (QOL) remains unknown. This study determines if increased PFA is associated with decreased QOL and sagittal balance in lumbosacral HGS. Read More

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http://link.springer.com/10.1007/s00586-018-5506-3
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http://dx.doi.org/10.1007/s00586-018-5506-3DOI Listing
August 2018
4 Reads

Current Evidence Regarding the Diagnostic Methods for Pediatric Lumbar Spondylolisthesis: A Report From the Scoliosis Research Society Evidence Based Medicine Committee.

Spine Deform 2018 Mar - Apr;6(2):185-188. Epub 2017 Oct 16.

University of Kansas Medical Center, 3901 Rainbow Boulevard, MS 3017, Kansas City, KS 66160-7387, USA.

Study Design: Structured literature review.

Objectives: The Scoliosis Research Society (SRS) requested an assessment of the current state of peer-reviewed evidence regarding pediatric lumbar spondylolisthesis with the goal of identifying what is known and what gaps remain in further understanding the diagnostic methods for pediatric spondylolisthesis.

Summary Of Background Data: Spondylolisthesis in the lumbar spine is common among children and adolescents and no formal synthesis of the published literature regarding diagnostic methods has been previously performed. Read More

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http://dx.doi.org/10.1016/j.jspd.2017.08.010DOI Listing
December 2018
15 Reads

The safe use of long screws in L5/S1 stand-alone anterior interbody fusion for olisthesis cases.

Br J Neurosurg 2018 Feb 6;32(1):28-31. Epub 2018 Feb 6.

a The Centre for Spinal Studies and Surgery , Queens Medical Centre, Nottingham University Hospitals NHS Trust , Nottingham , UK.

Background: Stand-alone anterior interbody fusion (STALIF) with poly-ether-ether-ketone (PEEK) cages could offer a treatment option in olisthesis cases. The fixation of the PEEK-cage at the L5/S1 inferior endplate with long divergent screws however might endanger neural sacral structures, especially the S1 nerve root. If shorter screws are used, the achieved bony purchase might not be sufficient to resist the pull out and shear forces at the lumbosacral junction. Read More

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http://dx.doi.org/10.1080/02688697.2018.1432750DOI Listing
February 2018
5 Reads

Is Implant Washing and Wound Irrigation with Rifampicin Effective for Preventing Surgical Site Infections in Lumbar Instrumentation?

Turk Neurosurg 2018 ;28(6):904-909

Namık Kemal University, School of Medicine, Department of Neurosurgery, Tekirdag, Turkey.

Aim: To determine whether the washing of implants and autogenous bone grafts with rifampicin, and the irrigation of the surgical field using diluted rifampicin, have any significant effect on the prevention of spinal implant infections.

Material And Methods: A total of 166 consecutive lumbar stenosis and spondylolisthesis patients undergoing lumbar instrumentation between 2012 and 2016 were analyzed retrospectively. The patients were divided into two groups. Read More

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http://dx.doi.org/10.5137/1019-5149.JTN.21341-17.2DOI Listing
January 2019
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L5 incidence: an important parameter for spinopelvic balance evaluation in high-grade spondylolisthesis.

Spine J 2018 08 31;18(8):1417-1423. Epub 2018 Jan 31.

Department of Orthopedic Surgery, Clinique médico-chirurgicale des Massues, 92 Rue Edmond Locard, 69005 Lyon, France.

Background: In high-grade spondylolisthesis (HGSPL), the pelvic incidence (PI) is not a reliable measurement because of doming of the sacrum. Measurement of L5 incidence (L5I) was described as a tool to measure pelvic morphology in HGSPL and for surgical follow-up.

Objective: We aimed to evaluate L5I in HGSPL and its relationship to other spinopelvic parameters. Read More

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http://dx.doi.org/10.1016/j.spinee.2018.01.014DOI Listing
August 2018
5 Reads
2.430 Impact Factor

Fusion Rate and Clinical Outcomes in Two-Level Posterior Lumbar Interbody Fusion.

World Neurosurg 2018 Apr 31;112:e473-e478. Epub 2018 Jan 31.

Orthopedic Surgery, Osaka Rosai Hospital, Osaka, Japan.

Background: Posterior lumbar interbody fusion (PLIF) has become a general surgical method for degenerative lumbar diseases. Although many reports have focused on single-level PLIF, few have focused on 2-level PLIF, and no report has covered the fusion status of 2-level PLIF. The purpose of this study is to investigate clinical outcomes and fusion for 2-level PLIF by using a combination of dynamic radiographs and multiplanar-reconstruction computed tomography scans. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.01.062DOI Listing
April 2018
5 Reads

Radiological and functional outcomes of high-grade spondylolisthesis treated by intrasacral fixation, dome resection and circumferential fusion: a retrospective series of 20 consecutive cases with a minimum of 2 years follow-up.

Eur Spine J 2018 Aug 20;27(8):1940-1948. Epub 2018 Jan 20.

Department of Pediatric Orthopaedics, Robert Debré Hospital, Paris 7 University, AP-HP, 48 boulevard Sérurier, 75019, Paris, France.

Purpose: Major concern during surgery for high-grade spondylolisthesis (HGS) is to reduce lumbosacral kyphosis and restore sagittal alignment. Despite the numerous methods described, lumbosacral fixation in HGS is a challenging technique associated with high complication rate. Few series have described outcomes and most of the results are limited to lumbosacral correction without global sagittal alignment analysis. Read More

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http://dx.doi.org/10.1007/s00586-017-5455-2DOI Listing
August 2018
2 Reads

Fusion-segment of high-grade Lumbar Spondylolisthesis: 2-year follow-up.

Authors:
X Li L Xu Q Kong

Acta Orthop Belg 2016 Dec;82(4):730-736

The clinical efficacy of reduction and fusion surgery and the suitable range of fusion-segment were evaluated in 12 pediatric patients treated for high-grade spondylolisthesis. Pre/post-operative clinical and radiological assessments were analyzed. A transient L5 nerve root paralysis was observed in one patient with L5 spondylolisthesis. Read More

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December 2016
6 Reads

Modified Lumbosacral Angle and Modified Pelvic Incidence as New Parameters for Management of Pediatric High-grade Spondylolisthesis.

Clin Spine Surg 2018 Mar;31(2):E133-E139

Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedic Implants, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China.

Study Design: Retrospective clinical study.

Objective: We aimed to introduce new parameters that can better describe the pelvic morphology and lumbosacral segmental deformity in children with high-grade spondylolisthesis of the L5 vertebra: modified pelvic incidence (mPI) and modified lumbosacral angle (mLSA). Also, we aimed to establish the mLSA as a convenient, reliable measurement method and criteria to evaluate the reduction of L5 vertebral slippage. Read More

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http://dx.doi.org/10.1097/BSD.0000000000000595DOI Listing
March 2018
6 Reads

Spontaneous Fusion of S2/S3 Spondyloptosis in an Adult.

World Neurosurg 2018 02 12;110:129-132. Epub 2017 Oct 12.

Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.

Background: Spondyloptosis is grade V on the Meyerding classification. Traumatic spondyloptosis can occur throughout the spinal column, particularly at junctional levels, and finding an ideal surgical strategy to address it remains a challenge for spinal surgeons. The sacrum is considered a united bone in adults, and sacral intersegmental spondyloptosis is extremely rare. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750173172
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http://dx.doi.org/10.1016/j.wneu.2017.10.001DOI Listing
February 2018
15 Reads

Letter to the Editor concerning ''Radiographic evaluation of indirect decompression of mini-open anterior retroperitoneal lumbar interbody fusion: oblique lateral interbody fusion for degenerated lumbar spondylolisthesis'' by Jun Sato et al. Eur Spine J (2017) 26: 671-678.

Eur Spine J 2018 01 13;27(1):239. Epub 2017 Oct 13.

Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Changchunjie 45#, Xicheng District, Beijing, 100053, China.

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http://dx.doi.org/10.1007/s00586-017-5319-9DOI Listing
January 2018
9 Reads

The Relationship Between Sacral Slope and Symptomatic Isthmic Spondylolysis in a Cohort of High School Athletes: A Retrospective Analysis.

PM R 2018 May 6;10(5):501-506. Epub 2017 Oct 6.

Department of Physiatry, Hospital for Special Surgery, New York, NY.

Background: Spondylolysis with and without anterolisthesis is the most common cause of structural back pain in children and adolescents, but few predictive factors have been confirmed. An association between abnormal sacropelvic orientation and both spondylolysis and spondylolisthesis has been supported in the literature. Sacral slope and other sacropelvic measurements are easily accessible variables that could aid clinicians in assessing active adolescents with low back pain, particularly when the diagnosis of spondylolysis is suspected. Read More

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http://dx.doi.org/10.1016/j.pmrj.2017.09.012DOI Listing
May 2018
45 Reads