Jiwoon Kwon
Yonsei University · 医学
研究室紹介
Professor Jiwoon Kwon's research lab specializes in spinal disorders, with a focus on lumbar spinal stenosis, congenital scoliosis, and complex spinal infections such as emphysematous osteomyelitis. The lab investigates both surgical and nonsurgical treatment outcomes, emphasizing minimally invasive techniques and patient-centered outcomes, including intraoperative stress monitoring in orthopedic surgeons using EEG and HRV. Additionally, the lab explores rare neurological complications of medical treatments, such as cefepime-induced aphasic status epilepticus, highlighting its clinical and diagnostic significance.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Patients with lumbar spinal stenosis (LSS) may experience neuropathic symptoms, such as back pain, radiating pain, and neurogenic claudication. Although the long-term outcomes of both nonsurgical and surgical treatments are similar, surgery may provide shortterm benefits, including improved symptoms and lower risk of falling. Decompression is mainly used for surgical treatment, and depending on the decompression degree and associated instability, combination therapy may be given. Minimally invas
The female Koreans appeared to have a high prevalence of GJH. The incidence of GJH decreased as age increased as a result of decreased mobility of the fifth finger on the dominant side.
RATIONALE: Emphysematous osteomyelitis is a rare disease caused by gas-forming bacteria. But only 45 cases have been reported in the literature since then. PATIENT CONCERNS: A 72-year-old female presented to our hospital with severe lower back pain that aggravated 4 days ago. DIAGNOSES: Computed tomography (CT) revealed intraosseous mottled air in the T12 and L1 vertebral bodies and epidural space. The enhanced T1 and T2 magnetic resonance imaging scans showed heterogeneous signal intensity of v
Can we recognize intraoperative real-time stress of orthopedic surgeons and which factors affect the stress of intraoperative orthopedic surgeons with EEG and HRV? From June 2018 to November 2018, 265 consecutive records of intraoperative stress measures for orthopedic surgeons were compared. Intraoperative EEG waves and HRV, comprising beats per minute (BPM) and low frequency (LF)/high frequency (HF) ratio were gathered for stress-associated parameters. Differences in stress parameters accordin
Cefepime-induced neurotoxicity, including nonconvulsive status epilepticus, has been reported especially in patients with renal impairment. However, focal nonconvulsive status epilepticus is very rare and cefepime-induced aphasic status epilepticus proven by electroencephalography have never been reported to our knowledge. We present an interesting case of aphasic status epilepticus mimicking acute stroke in a patient treated by cefepime.
To investigate the epidemiology of congenital scoliosis (CS) and treatment trends. An age-matched, nationwide, population-based study was conducted using the National Health Insurance and Health Insurance Review and Assessment databases from 2010 to 2015. Data regarding the diagnosis and treatment of scoliosis were extracted using International Classifications of Diseases, 10th revision codes. The age-matched normal population was determined from the Korean Statistical Information Service databa
This study describes a new and safe freehand cervical pedicle screw insertion technique using preoperative computed tomography (CT) morphometric measurements as a guide and a medial pedicle pivot point (MPPP) during the procedure. This study included 271 pedicles at 216 cervical spine levels (mean: 4.75 pedicles per patient). A pedicle diameter (PD) ≥ 3.5 mm was the cut-off for pedicle screw fixation. The presence and grade of perforation were detected using postoperative CT scans, where perfora
Smokers in male samples were at higher risk for LBP and related spinal diseases than nonsmokers.
STUDY DESIGN: A retrospective observational study. OBJECTIVE: This study investigated the clinical and radiological results of using cortical bone trajectory (CBT) screws versus traditional pedicle (TP) screws in transforaminal lumbar interbody fusion (TLIF) during a five-year follow-up of patients with single-level lumbar degenerative spondylolisthesis. SUMMARY OF BACKGROUND DATA: Few studies have compared five-year follow-up outcomes between CBT screws and TP screws in TLIF. MATERIALS AND METH
Lumbar spinal stenosis (LSS) is a common degenerative spinal condition where spinal canal narrowing causes symptoms such as neurogenic claudication, radiculopathy, and lower back pain. While non-operative and surgical approaches yield similar long-term outcomes, surgical intervention-particularly decompression-can provide earlier symptom relief, functional recovery, and fall prevention in selected patients with refractory symptoms. Recent advancements in surgical technologies and image guidance
The design and ratio of the cortico-cancellous composition of allograft spacers are associated with graft-related problems, including subsidence and allograft spacer failure. Methods: The study analyzed stress distribution and risk of subsidence according to three types (cortical only, cortical cancellous, cortical lateral walls with a cancellous center bone) and three lengths (11, 12, 14 mm) of allograft spacers under the condition of hybrid motion control, including flexion, extension, axial r