Incidence and Risk Factors of Superior Facet Joint Violation in Percutaneous and Open Instrumentation Using Cortical Bone Trajectory Technique: A Comparison of Different Techniques

Conclusions: Lumbar fusion through CBT instrumentation would reduce FJV. Computer-assisted navigation resulted in a lower incidence of FJV. Percutaneous instrumentation with navigation assistance is not a risk factor for FJV. Special care should be taken in patients with body mass index ≥30 kg/m2, left-side screw, facet angle ≥45 degrees, and scoliosis. Level of Evidence: Level III.
Source: Journal of Spinal Disorders and Techniques - Category: Surgery Tags: Primary Research Source Type: research

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Publication date: Available online 13 March 2020Source: Journal of Clinical NeuroscienceAuthor(s): Masaaki Machino, Noriaki Kawakami, Tetsuya Ohara, Toshiki Saito, Ryoji Tauchi, Shiro Imagama
Source: Journal of Clinical Neuroscience - Category: Neuroscience Source Type: research
AbstractPurposeTo investigate whether the rotation of preoperative-presumed lowest instrumented vertebra (LIV) is a risk factor for adding-on (AO) in adolescent idiopathic scoliosis (AIS) treated with selective posterior thoracic fusion (sPTF).MethodsA total of 196 AIS patients of Lenke type 1A or 2A with minimum 2-year follow-up after sPTF with all pedicle screw instrumentation were included. Radiographical parameters were measured as follows: preoperative rotation angle of presumed LIV and LIV  + 1, LIV + 1/LIV rotation difference, postoperative rotation angle of LIV and LIV derotation angle o...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Abstract OBJECTIVE: Achieving fusion at the lumbosacral junction poses many technical challenges. No data exist in the literature comparing radiographic or clinical outcomes between the different surgical techniques of transsacral fixation (TSF) with rods and transforaminal lumbar interbody fusion (TLIF) in conjunction with iliac fixation. The purpose of this study was to compare the clinical outcomes and radiographic fusions of TSF to TLIF in patients with adult spinal deformity undergoing long fusions across the lumbosacral junction. METHODS: Patients with primary adult spinal deformity who underwent long f...
Source: Journal of Neurosurgery.Spine - Category: Neurosurgery Authors: Tags: J Neurosurg Spine Source Type: research
ConclusionsAfter this literature review and analysis of post-operative stenosis, it seems important to provide some advice to avoid revision surgeries more or less induced by the surgery. It looks interesting when performing simple decompression without fusion in the lumbar spine to analyse the risk of instability induced by the decompression and facet resection but also by a global balance analysis. Regarding pre-operative stenosis in a previously operated area, different causes may be evocated, like screw or cage malpositionning but also insufficient decompression which is a common cause. Intraoperatively, the use of neu...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
This study seeks to evaluate the likelihood of screw misplacement at the end vertebra and apex. Methods: A retrospective review of preoperative and postoperative computed tomographic (CT) scans of spinal deformity patients who underwent posterior spinal fusion with pedicle screw constructs between 2004 and 2011 was performed. Pedicles located at the upper instrumented vertebra (UIV) and lower instrumented vertebra (LIV), and the major and minor apices were evaluated. Pedicle morphology was studied on preoperative CT and screw placement on postoperative CT. Results: In total, 188 patients met the inclusion criteria, 1...
Source: Journal of Pediatric Orthopaedics - Category: Orthopaedics Tags: Scoliosis Source Type: research
Study Design. A retrospective study. Objective. The purpose of this study was to evaluate the morphology of rib regeneration and to analyze the influence of demographics and curve characteristics on regeneration potential after thoracoplasty in the treatment of adolescent idiopathic scoliosis (AIS). Summary of Background Data. Studies on the physiological effects after thoracoplasty have been performed for several decades. However, rib cage anatomical regeneration patterns and reformation have been rarely studied. Methods. A total of 120 AIS patients who underwent thoracoplasty with deformity correction were inc...
Source: Spine - Category: Orthopaedics Tags: DEFORMITY Source Type: research
ConclusionSternal foramen is a more common defect than thought, and should be kept in mind in clinical practice to prevent complications.
Source: Surgical and Radiologic Anatomy - Category: Anatomy Source Type: research
Adolescent idiopathic scoliosis (AIS) is a spinal deformity that can affect young children. It requires frequent exposure to X-rays to monitor the deformity, which can lead to the development of radiation-induced cancer later in life. The aim of this study is to test the accuracy of using scan projection radiography (SPR) in computed tomography (CT) scans for AIS assessment. This scanning mode delivers low radiation compared with conventional radiography.
Source: Radiography - Category: Radiology Authors: Source Type: research
This article reviews the weight-bearing imaging methods in the diagnosis and monitoring of patients with adolescent idiopathic scoliosis (AIS), a three-dimensional (3D) deformity of the spine with unknown etiology. The apical vertebrae in AIS rotate away from the midline in a complex 3D pattern that formerly could only be appreciated by computed tomography (CT). Despite its superb anatomical delineation, CT is not ideal due to high radiation and scanning in either the supine or prone position; hence the full effect of gravity on the spinal curvature cannot be assessed. The introduction of low-dose stereoradiography with th...
Source: Seminars in Musculoskeletal Radiology - Category: Radiology Authors: Tags: Review Article Source Type: research
ABSTRACTFibrous dysplasia (FD) is a mosaic skeletal disorder resulting in fractures, deformity, and functional impairment. Clinical evaluation has been limited by a lack of surrogate endpoints capable of quantitating disease activity. The purpose of this study was to investigate the utility of18F ‐NaF PET/CT imaging in quantifying disease activity in patients with FD. Fifteen consecutively evaluated subjects underwent whole‐body18F ‐NaF PET/CT scans, and FD burden was assessed by quantifying FD‐related18F ‐NaF activity.18F ‐NaF PET/CT parameters obtained included (i) SUVmax (standardized uptake value [SUV] of t...
Source: Journal of Bone and Mineral Research - Category: Orthopaedics Authors: Tags: Original Article Source Type: research
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