A5052548589- Spine and Intervertebral Disc Pathology
- Spinal Fractures and Fixation Techniques
- Scoliosis diagnosis and treatment
- Medical Imaging and Analysis
- Glioma Diagnosis and Treatment
- Musculoskeletal pain and rehabilitation
- Cervical and Thoracic Myelopathy
- Meningioma and schwannoma management
- Advanced Neuroimaging Techniques and Applications
- Cerebrospinal fluid and hydrocephalus
- Advanced MRI Techniques and Applications
- Neurosurgical Procedures and Complications
- Botulinum Toxin and Related Neurological Disorders
- Pituitary Gland Disorders and Treatments
- Spinal Hematomas and Complications
- Shoulder Injury and Treatment
- Pelvic and Acetabular Injuries
- Neurological disorders and treatments
- Traumatic Brain Injury and Neurovascular Disturbances
- Parkinson's Disease Mechanisms and Treatments
- Neurobiology of Language and Bilingualism
King Chulalongkorn Memorial Hospital
2019-2024
Chulalongkorn University
2019-2024
St. Joseph's Hospital and Medical Center
2021-2023
Barrow Neurological Institute
2020-2023
Barro Colorado Island
2023
Biomechanics Institute of Valencia
2023
Thai Red Cross Society
2019-2023
Spinal Research
2023
NuVasive (United States)
2023
North American Spine Society
2023
S2 alar-iliac (S2AI) screw fixation effectively enhances stability in long-segment constructs. Although S2AI provides a single transarticular sacroiliac joint (SIJF) point, additional points may provide greater and attenuate rod strain. The objectives of this study were to evaluate changes pedicle strain with extended distal supplemental bilateral integration two fusion devices implanted using traditional minimally invasive surgical approach.Eight L1-pelvis human cadaveric specimens...
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...
Background Although intraoperative magnetic resonance imaging (iMRI) has an established role in guiding extent of resection (EOR) cranial tumor surgery, the details how iMRI data are used by surgeon real-time decision-making process is lacking. Materials and Methods The authors retrospectively reviewed 40 consecutive patients who underwent with guidance iMRI. volumes were measured volumetric software. Intraoperative postoperative EOR calculated compared. Surgeon preoperative intention,...
Study Design. Biomechanical study of range motion (ROM) at the vertebral levels adjacent to construct posterior pedicle screw-rod fixation with different types lumbar interbody fusion techniques (LIF). Objective. To investigate differences in segment mobility among three LIF: lateral (LLIF), transforaminal (TLIF), and (PLIF). Summary Background Data. Previous studies have concluded that LLIF, TLIF, PLIF (PSR) provide equivalent stability cadaveric specimens are comparable rate functional...
The high mechanical stress zone at the sudden transition from a rigid to flexible region is involved in proximal junctional kyphosis (PJK) physiopathology. We evaluated biomechanical performance of polyetheretherketone (PEEK) rods used as nontraditional long semirigid phase long-segment metallic rod construct nonfused thoracic spine.Pure moment range motion (ROM) tests (7.5 Nm) were performed on 7 cadaveric spine segments followed by compression (200 N). Specimens tested following...
Purpose: A challenging aspect of glioma surgery is to distinguish tumour tissue from surrounding eloquent structures and perform resection with accuracy. Various technologies have been used address this issue including neuronavigator, intraoperative magnetic resonant imaging, ultrasound, fluorescence, each which has certain drawbacks limitations. In study, authors demonstrate the technique using stereotactically placed catheters as guidance during cerebral report surgical outcomes. Materials...
The minimally invasive (MI) lateral approach to the TL junction for treating various spinal pathologies is quite challenging spine surgeons due this region's unfamiliar and complex anatomical structures. In addition, controversy still exists regarding selection, need rib resection, diaphragm manipulation.
Study Design: This was a laboratory investigation. Objective: Rod attachment can induce significant pedicle screw-and-rod pre- strain that may predispose the instrumentation to failure. study investigated how in vitro L5–S1 rod and S1 screw during rod-screw (pre-strain) compared with strains recorded pure-moment bending ( test- strain). Summary of Background Data: The lumbosacral junction is highly vulnerable construct failure due fatigue fracture, sacral pull-out, fracture. Materials...
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...
Due to brain shift during bilateral deep stimulation (DBS) surgery, placement of the second electrode may be subjected more error than that first electrode. The authors aimed investigate accuracy in this setting.
Abstract Background As ageing population continues to rise across the globe, age‐related conditions such as normal pressure hydrocephalus (NPH) are expected become a prevalent health problem effecting gait and cognition in elderly. Alas, vague definition of NPH, coupled with absence standardized assessment protocols, can potentially result unnecessary surgical interventions complications. We aim demonstrate feasibility our proposed objective scheme for comprehensive systematic evaluation...
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.
Background During brain surgery, the neurosurgeon must be able to identify and avoid injury Rolandic cortex. However, when only a small part of cortex is exposed, it may difficult with certainty. Despite various advanced methods it, visual recognition remains an important backup for neurosurgeons. The aim study was find any specific morphology pattern that help intraoperatively. Materials Methods Magnetic resonance imaging from patients conditions used create three-dimensional cerebral...
During brain surgery, the neurosurgeon must be able to identify and avoid injury Rolandic cortex. However, when only a small part of cortex is exposed, it may difficult with certainty. Despite various advanced methods it, visual recognition remains an important backup for neurosurgeons. The aim study was find any specific morphology pattern that help intraoperatively.Magnetic resonance imaging from patients conditions used create three-dimensional cerebral reconstruction images. A total 216...