Extended reality (XR) technology refers to any situation where real-world objects are enhanced with computer technology, including virtual reality, augmented and mixed reality. Augmented technologies have been widely applied in orthopedic clinical practice, teaching, preoperative planning, intraoperative navigation, surgical outcome evaluation. The primary goal of this narrative review is summarize the effectiveness superiority XR-technology-assisted navigation fields trauma, joint, spine,...

Abstract Background The paraspinal and psoas muscles have been considered to be essentially important for stabilizing the spinal column, muscle degeneration was found exist in degenerative kyphosis (DSK) patients. However, it is still not clear relationship between spinal-pelvic alignment. purpose of this study determine correlations individual at each lumbar level parameters DSK Methods imaging data 32 patients with were retrospectively analyzed. fat infiltration (FI) relative...

Objectives: The aim of this study was to investigate the incidence vertebral refractures following percutaneous kyphoplasty (PKP) and explore risk factors for augmented refractures, thereby assisting spinal surgeons in clinical practice. Methods: We analyzed records 495 patients with single-segment osteoporotic compression fractures (OVCFs) who were treated single-entry PKP at our institution from March 2016 August 2022. Univariate analysis, binary logistic regression, ROC curve analysis...

To assess the mid-long-term follow-up of safety and efficacy anterior cervical discectomy fusion (ACDF), artificial disc replacement (CADR) hybrid surgery (HS) for bilevel degenerative disease (cDDD).77 patients who underwent ACDF, HS, CADR were retrospectively reviewed. Clinical effects evaluated based on Neck Disability Index (NDI), Visual Analog Scale (VAS), Japanese Orthopedic Association (JOA) scores Odom criteria. Radiographic outcomes evaluated, including range motion (ROM), ROM in...

Surface electromyogram (sEMG)-based gesture recognition has emerged as a promising avenue for developing intelligent prostheses upper limb amputees. However, the temporal variations in sEMG have rendered models less efficient than anticipated. By using cross-session calibration and increasing amount of training data, it is possible to reduce these variations. The impact varying data on performance amputees still unknown. To assess effects, we present four datasets evaluation examine...

This study aimed to further compare subdermal needle electrodes (NE) and surface adhesive (SE) during intraoperative neuromonitoring (IONM) in spine surgeries. We analyzed data from forty consecutive patients undergoing surgery. The mainly included impedance, Root Mean Square (RMS), Tc-MEP free-run EMG characteristics of NE versus SE with (left foot) without (right conductive paste (CP) IONM. Results indicated that CP exhibited significantly lower impedance than higher NE. RMS recorded by...

Polyp segmentation is a pivotal task in the field of medical image processing. We devised more effective deep learning model (PPFormer) that seamlessly integrates pyramid pooling module with transformer. This integration significantly improves model's ability to restore intricate details during decoding phase. Additionally, we rethinked importance multi-scale feature maps within and thoughtfully designed two pruning strategies target elimination redundant mis-segmented maps, resulting...

The aim of this study was to evaluate the effect Topping-off technique in preventing aggravation degeneration caused by adjacent segment fusion.Clinical parameters patients who underwent L5-S1 posterior lumbar interbody fusion + interspinous process at L4-L5 (PLIF ISP) with Wallis system (Topping-off group) were compared retrospectively those solely PLIF. Pre- and post-operative x-ray measurements, visual analogue scale (VAS) scores, Japanese Orthopaedic Association (JOA) scores assessed all...

Abstract Purpose To compare sagittal alignment and clinical outcomes between three-level hybrid surgery (HS) anterior cervical discectomy fusion (ACDF) on spondylotic myelopathy (CSM) over a 5-year follow-up. Method The study included 32 patients with ACDF, 36 1 prosthesis 2 cages (HS1 group), 25 cases prostheses cage (HS2 group). Alignment parameters C2–C7 lordosis (CL), vertical axis (SVA), T1 slope (T1S), T1S minus CL (T1SCL). Radiographic were range of motion (ROM), upper lower adjacent...

The integration density of photonic integrated circuits (PICs) is significantly limited by the waveguide bend losses. Reducing losses design geometry bends important for circuits. Currently, circular and Euler are two most common used in bending designs. A modified <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</i> -adjustable proposed ultra-small radius (≤2 μm) applying widening width method to bends. Simulations experiments indicate that...

BACKGROUND Bone cement displacement (BCD), which has received increasing attention from scholars, is a serious complication following vertebroplasty in patients with osteoporotic vertebral fractures (OVFs), and percutaneous kyphoplasty (PKP) might promote its occurrence. However, few studies have systematically explored the risk factors of BCD after PKP. This research aimed to study for MATERIAL AND METHODS The clinical data OVFs treated PKP June 2016 August 2022 our department were...

Minimal invasion is an important trend in surgery. However, the endoscope, as one of key devices for monitoring process minimally invasive surgery, limited by its size and working space it operates in, which result a considerably narrow field view. In particular, when surgical instrument enters through tool channel, occupies most area endoscopic image. This hampers surgeon's view has negative impact on study proposes novel method removing occlusion caused instruments images making foreground...

Background The typical degeneration of the vertebral endplate shown in MRI imaging is Modic change. aim this study was to observe distribution changes degenerative thoracolumbar/lumbar kyphosis (DTK/LK) patients and analyse correlation between spinal-pelvic parameters changes. Methods data 58 diagnosed with DTK/LK (coronal Cobb angle<10°with sagittal imbalance) our hospital from March 2016 May 2017 were reviewed retrospectively. Observe prevalence, type characteristics occurred at T10...

Abstract Background Endoscopic instrument segmentation is essential for ensuring the safety of robotic‐assisted spinal endoscopic surgeries. However, due to narrow operative region, intricate surrounding tissues, and limited visibility, achieving within view remains challenging. Purpose This work aims devise a method segment surgical instruments in video. By designing an image classification model, features frames before after video are extracted achieve continuous precise videos. Methods...

Thoracolumbar junction (TLJ) is the transitional area between lower thoracic spine and upper lumbar spine. Vertebral compression fractures proximal junctional kyphosis following surgery often occur in this area. Therefore, study of development mechanisms thoracolumbar degeneration important for planning surgical management. This aimed to review radiological parameters degenerative (TLJDK) patients with analyze compensatory sagittal balance.From January 2016 March 2017, were enrolled...

The relationship between upper or lower adjacent segments (UAS/LAS) and the cervical spine parameters was not clear yet. So, purpose to analyze range of motion (ROM), lordosis (LOR), intervertebral disc height (IDH) UAS LAS before after total replacement (TDR) explore influencing factors radiological on segments.A single-center retrospective study performed patients completing 10-year follow-up undergone TDR. As primary outcomes, included UAS-ROM/LAS-ROM, UAS-LOR/LAS-LOR, UAS-IDH/LAS-IDH....

This paper provides a prototype neural prosthesis system dedicated to restoring continence and micturition function for patients with lower urinary tract diseases, such as detrusor hyperreflexia detrusor-sphincter dyssynergia. consists of an ultra low-noise electroneurogram (ENG) signal recording module, bi-phasic electrical stimulator module control unit closed-loop bladder monitoring controlling. In order record extremely weak ENG from extradural sacral nerve roots, the programmable gain...

With the increasing demand for total knee arthroplasty (TKA) surgery, more attention has been paid to accurate measurement of pressure and adjustment prosthesis. The tightness between artificial meniscus articular head thickness will directly affect matching joint human body. At present, installation during operation largely depends on personal experience doctors. In this work, a flexible sensing device with bendable distortable sensor arrays force detection in is fabricated characterized...

Abstract Background The position of the head relative to spine can be used evaluate true global balance in patients with degenerative spinal kyphosis (DSK). However, it is still not clear how related spinal-pelvic parameters and lumbar muscles, which are most commonly considered. Methods Sixty-seven DSK admitted hospital from January 2017 2019 were retrospectively analyzed. All had whole X-ray MRI. include: angles both lines joining center acoustic meati (CAM) bi-coxofemoral axis (BA)...

Dynamic interspinous stabilization devices generally provide satisfactory results, but can result in recurrent lumbar disc herniation, spinous process fracture, or bone resorption of the process. The purpose this study was to investigate if Wallis dynamic device is associated with resorption.Patients who underwent single-segment posterior decompression and implantation a at L4/5 level between January 1, 2009 October 2011 were included. Bone rate, Oswestry Disability Index (ODI), Japanese...