To determine the effect of obesity on clinical, radiographic, and surgical outcomes after lateral lumbar interbody fusion (LLIF) versus minimally invasive surgery (MIS) transforaminal (TLIF) compare effectiveness LLIF MIS TLIF in treating obese patients. A retrospective comparative analysis patients who underwent single-level L4-5 or over a 7-year period was performed. Spinopelvic parameters were compared based pre- postoperative radiographs. Body mass index (BMI) ≥30 deemed "high"; BMI <30...

Study Design. Radiographic analysis. Objective. Evaluate the anatomical relationships of bowel to lateral surgical corridor and spine in various positions. Summary Background Data. Retroperitoneal transpsoas lumbar interbody fusion (LLIF) may be performed with patients prone position, allowing for posterior approaches without repositioning patient. Few, if any, studies discuss changes position during these procedures. Methods. Ten healthy volunteers underwent MRI 3 positions: supine, hips...

The objective of this study was to describe the use a novel approach, "floating island" technique surgically address calcified thoracic disc herniation (cTDH) that interdigitates with adjacent dura and report clinical radiographic outcomes patients. A retrospective case series conducted by examining electronic medical records consecutive patients who underwent discectomy from August 2017 December 2022. Of 65 treated for herniation, 37 had cTDHs. Five these treatment floating island...

Study Design: Retrospective cohort study. Objective: To evaluate factors associated with long-term pseudoarthrosis and subsidence following L5-S1 anterior lumbar interbody fusion (ALIF). Summary of Background Data: Reported rates for ALIF at the lumbosacral junction vary widely. Methods: Patients undergoing (November 1, 2016–September 3, 2021) were retrospectively analyzed. Fusion (Bridwell grades: 1–2) or 3–4) (Marchi 0–3) determined using 1-year follow-up computed tomography (CT) studies....

OBJECTIVE The incidence of sacroiliac joint (SIJ) dysfunction after lumbosacral fusion is high. Upfront bilateral SIJ using novel fenestrated self-harvesting porous S2–alar iliac (S2AI) screws could reduce the and need for subsequent fusion. In this study, authors report their early clinical radiographic results screw. METHODS began in July 2022. This a retrospective review consecutive patients at single institution who underwent long thoracolumbar surgery with extension to pelvis...

Cortical screw-rod (CSR) fixation has emerged as an alternative to the traditional pedicle (PSR) for posterior lumbar fixation. Previous studies have concluded that CSR provides same stability in cadaveric specimens PSR and is comparable clinical outcomes. However, recent reported a lower incidence of radiographic symptomatic adjacent-segment degeneration with CSR. No biomechanical study date focused on how mobility these two constructs compares. This aimed investigate fixation, without...

In vitro biomechanical study.This study aimed to investigate the effects of facet joint violation (FV) on mobility and optically tracked intervertebral disc (IVD) surface strains at upper level adjacent L4-5 pedicle screw-rod fixation.FV is a complication that can occur when placing lumbar screws; reported incidence as high 50%. However, little known about how FV affects superior adjacent-level spinal stability, especially IVD strain, after fusion.Fourteen cadaveric L3-S1 specimens underwent...

OBJECTIVE The mini-open lateral retropleural (MO-LRP) approach is an effective option for surgically treating thoracic disc herniations, but the raises concerns pneumothorax (PTX). However, chest tube placement causes insertion site tenderness, necessitates consultation services, increases radiation exposure (requires multiple radiographs), delays progression of care, and narcotic requirements. This study examined incidence radiographic clinically significant PTX hemothorax (HTX) after...

OBJECTIVE There is an increasing need for optimal surgical techniques older patients with degenerative spine disease. The authors evaluated perioperative complications and clinical long-term radiographic outcomes in than 75 years after lateral lumbar interbody fusion (LLIF) METHODS conducted a single-center, retrospective case series of consecutive who underwent single-level or multilevel LLIF between January 1, 2017, December 31, 2022. Postoperative transient neurapraxia permanent...

To investigate associations between preoperative lumbar multifidus muscle (LMM) and psoas major (PMM) qualities pre- postoperative patient-reported outcomes (PROs) after anterolateral interbody fusion (A-LLIF).

Accurate intraoperative assessment of coronal alignment is critical to achieving favorable clinical outcomes in adult spinal deformity surgery. However, surgical positioning creates challenges predicting standing alignment. Gravity-based plumblines require an upright posture and are not possible intraoperatively. Intraoperative stitched radiography (ISR) increasingly being used evaluate balance as alternative 36-inch films, which can be cumbersome. ISR does allow for the measurement absolute...

OBJECTIVE Outpatient spine surgery could reduce hospital costs and improve patient outcomes. lateral lumbar interbody fusion (LLIF) can be performed for select patients. This study identified compared the demographic, clinical, surgical characteristics of patients who underwent outpatient versus inpatient single-level LLIF. METHODS A retrospective review was conducted a prospectively collected database first-time LLIF at single institution by same surgeon from January 1, 2017, through...

BACKGROUND AND OBJECTIVES: Physician rating websites (PRWs) are increasingly used by patients to find health care providers. This study explores spine neurosurgeon PRW ratings and their relationship with academic productivity. METHODS: A retrospective was conducted from November 2022 May 2023 that included 1990 neurological surgeons listed in the American Association of Neurological Surgeons database a subspecialty spine. Neurosurgeons were excluded if they had no reviews on Healthgrades or...

The objective of this study was to assess the pullout force a novel sharp-tipped screw developed for single-step, minimally invasive pedicle placement guided by neuronavigation compared with traditional screws.A total 60 human cadaveric lumbar pedicles were studied. Three different insertion techniques compared: (A) Jamshidi needle and Kirschner wire without tapping; (B) (C) insertion. Pullout tests performed at displacement rate 10 mm/min recorded 20 Hz. Mean values these parameters using...

OBJECTIVE Interbody fusion is the primary method for achieving arthrodesis across lumbosacral junction in setting of degenerative pathologies, such as spondylosis and spondylolisthesis. Two common techniques are anterior lumbar interbody (ALIF) posterior transforaminal (TLIF). In recent years, design technology have advanced, most earlier studies comparing ALIF TLIF did not specifically assess junction. This study compared changes radiographic clinical parameters between patients undergoing...

BACKGROUND AND OBJECTIVES: Thoracic disk herniations are challenging to treat, and open transthoracic or minimally invasive thoracoscopic approaches associated with significant morbidity, substantial costs, steep learning curves. The lateral retropleural thoracic diskectomy (MIS-LRP-TD) approach is straightforward lower perioperative morbidity. With MIS-LRP-TD, the overlying rib, ipsilateral pedicle, ligamentum flavum, posterior longitudinal ligament, third of adjacent vertebral bodies...

Changes to segmental lordosis at a single level may affect adjacent-level biomechanics and overall spinal alignment with an iatrogenic domino effect commonly seen in adult deformity. This study investigated the effects of different angles single-level lumbar fixation on stability principal strain across surface disc.

Proximal junctional kyphosis (PJK) is a common complication following long-segment thoracolumbar fusions for patients with adult spinal deformities. PJK described as progressive at the upper instrumented vertebra or 1 2 segments adjacent to vertebra. This condition can lead proximal junction failure, which results in vertebral body fractures, screw pullouts, and neurological deficits. Revision surgery necessary address symptomatic PJK. Research efforts have been dedicated elucidating risk...