Uniportal Full Endoscopic 270° Decompression for Thoracic 1-2 Hard Disc Herniation With Ossification of the Ligamentum Flavum.

This article aims to demonstrate the uniportal full endoscopic surgery for treating complex anterior and posterior spinal pathology at the T1-2 level, offering a invasive, accessible, stable, and versatile approach to challenging anatomical situations. Uniportal full endoscopic surgery is one of the most minimally invasive spinal surgeries, utilizing slim, elongated, and compact instruments that provide access to lesions from any angle and distance. This characteristic makes the technique especially suitable for hard, such as the T1-2 level, where traditional approaches may be limited or difficult.

Relationships between the Spinal Dural Pulsations and the Short-Term Efficacy of Lumbar Epidural Steroid Injection.

Background: Lumbar spinal stenosis (LSS) causes low back pain, leg pain, numbness in the leg, and neurogenic intermittent claudication. Epidural steroid injection (ESI) has been used for treating spinal stenosis symptoms. We hypothesized that dural pulsation was variable for lumbar spinal stenosis.

Sesquiterpenes from and Their Cytotoxic Activity.

Nine sesquiterpenes, including eight pentalenenes (-) and one bolinane derivative (), were isolated from the culture broth of a marine-derived actinobacterium 213DD-006. Among them, , , , and were new compounds. Their planar structures were determined by spectroscopic methods (HRMS, 1D, and 2D NMR), and the absolute configuration was established by biosynthesis consideration and electronic-circular-dichroism (ECD) calculations.

Uniportal full endoscopic spinous process-preserving laminectomy for bilateral decompression in cervical stenotic myelopathy: patient series.

Background: Endoscopic decompression for cervical stenotic myelopathy has several advantages over conventional open surgery. However, sometimes performing bilateral decompression, especially contralateral decompression, can be dangerous. The cervical spine has specific characteristics, including a shallower lamina angle and thinner lamina than the lumbar or thoracic lamina.

Comparison of Pain Reduction and Changes in Serum Cortisol and Glucose Levels to Different Doses of Lumbar Epidural Dexamethasone: A Prospective Study.

Background: Lumbar epidural steroid injection (LESI) is an effective treatment for low back pain. However, it may result in increased blood glucose levels, decreased plasma cortisol concentrations, and suppression of the adrenocorticotropic hormone axis.

Objective: We investigated the effects of 4 mg and 8 mg of dexamethasone as an LESI on back pain and the resulting changes in serum cortisol and glucose levels.

Gravity and magnetic anomalies of earthquake-prone areas in the southwestern Ulleung basin margin, East Sea (Sea of Japan).

Submarine earthquakes have increased in the southwestern Ulleung Basin adjacent to the Korean Peninsula. This study analyzed the gravitational and magnetic properties of the three earthquake-prone areas (Hupo Bank and offshore regions near Pohang and Ulsan) in the basin. The basin was affected by tensile and compressive stresses during the formation of the East Sea.

Five-year recurrence pattern of mature cystic teratoma according to operation type in young women.

Objective: To find cumulative recurrence rate and risk factors for recurrence in young women with mature cystic teratoma (MCT).

Methods: Patients aged 10-29 years with MCT confirmed by their first ovarian surgery between 2000 and 2018 were included in the study. To rule out residual lesions, only patients with no MCT-suspected lesions on imaging within 1 year after surgery were included in the study.

Effect of lumbar epidural steroid injection on neuropathic pain: a prospective observational study.

Background: Low back pain (LBP) is caused by disc herniation, spinal stenosis, facet syndrome or etc. This LBP could be either nociceptive or neuropathic pain (NP). In addition, these neuropathic pain is a major contributor to chronic low back pain.

Reduction of Radiation Exposure by Modifying Imaging Manner and Fluoroscopic Settings during Percutaneous Pedicle Screw Insertion.

Objective: Percutaneous pedicle screw (PPS) fixation is a needle based procedure that requires fluoroscopic image guidance. Consequently, radiation exposure is inevitable for patients, surgeons, and operation room staff. We hypothesize that reducing the production of radiation emission will result in reduced radiation exposure for everyone in the operation room.

Intradiscal Pulsed Radiofrequency Application Duration Effect on Lumbar Discogenic Low Back Pain.

Background: Discogenic pain is recognized as the most important and most common cause of low back pain (LBP). Intradiscal pulsed radiofrequency (ID-PRF) is used for the treatment of chronic discogenic pain.

Objectives: We investigated the effects of the duration of percutaneous monopolar ID-PRF application on chronic discogenic LBP.

Feasibility of Posterior Cervical Foraminotomy for Adjacent Segmental Disease after Anterior Cervical Fusion.

Objective: The aim of this study is to evaluate the feasibility of posterior cervical foraminotomy (PCF) for adjacent segmental disease (ASD) after anterior cervical fusion (ACF). As ACF is accepted as the standard treatment for cervical spondylosis, many studies have been conducted to evaluate the efficacy of various surgical techniques to overcome symptomatic ASD after the previous surgery. Herein, PCF was performed for the treatment of symptomatic ASD and the feasibility of the surgery was evaluated.

A long-term ecological monitoring of subtidal macrozoobenthos around Dokdo waters, East Sea, Korea.

Dokdo's high marine biodiversity has received worldwide attention recently. A total of 578 macrozoobenthos are recorded since the 1960s, but ecology of Dokdo's fauna is unknown. We monitored Dokdo's subtidal macrozoobenthos for 5 years in 2013-17, in the present study.

Posterior cervical foraminotomy for cervical radiculopathy: should cervical alignment be considered?

Background: Concerning of progression of deformity, it is reluctant to utilize a posterior approach if preoperative sagittal alignment is kyphotic or straight. The purpose of this study was to determine interval changes in cervical segmental angles after posterior cervical foraminotomy (PCF) and analyzing factors affecting cervical sagittal re-alignment in the postoperative period.

Methods: Within 2 days and 6 months after PCF, postoperative plain radiograph was obtained to compare the cervical sagittal alignment with preoperative alignment in 286 consecutive patients.

Influence of combined oral contraceptives on polycystic ovarian morphology-related parameters in Korean women with polycystic ovary syndrome.

Objective: This study aimed to assess the effect of combined oral contraceptives (COCs) on polycystic ovarian morphology (PCOM) and serum anti-Müllerian hormone (AMH) levels in Korean women with polycystic ovary syndrome (PCOS).

Methods: This university hospital study enrolled 36 Korean women who were newly diagnosed with PCOS based on the Rotterdam criteria and were treated with COCs for at least 1 year. We retrospectively evaluated the ovarian volume and number of antral follicles using ultrasonography and assessed serum AMH levels at baseline and after 1 year of COC treatment.

Endoscope-Assisted Minimally Invasive Interlaminar Lumbar Decompression for Spinal Stenosis.

Background: Lumbar stenosis is characterized by a narrowing of the spinal canal in association with progressive degenerative changes in the lumbar spine and surrounding structures, including hypertrophy of the ligamentum flavum (LF).

Objectives: The aim of this study was to examine the usefulness of endoscope-assisted interlaminar lumbar decompression (EILD) for patients with lumbar stenosis and hypertrophy of the LF.

Study Design: Retrospective study.

WITHDRAWN:Comparison of the Efficacy of Epidural Balloon Neuroplasty Versus Percutaneous Epidural Neuroplasty Using a Catheter for Lumbar Central Spinal Stenosis.

This article was withdrawn by the Neurospine editorial board's decision due to the author's ethical problem.

Efficacy of transforaminal laser annuloplasty versus intradiscal radiofrequency annuloplasty for discogenic low back pain.

Background: Discogenic pain is a common cause of disability and is assumed to be a major cause of nonspecific low back pain. Various treatment methods have been used for the treatment of discogenic pain. This study was conducted to compare the therapeutic success of radiofrequency (an intradiscal procedure) and laser annuloplasty (both an intradiscal and extradiscal procedure).

Risk Factors for Early Recurrence After Transforaminal Endoscopic Lumbar Disc Decompression.

Background: Transforaminal endoscopic lumbar disc decompression (TELD) has emerged as a treatment alternative to open lumbar discectomy, but rates of herniated lumbar disc (HLD) recurrence after TELD are higher by comparison.

Objectives: We conducted this study to identify factors correlating with early HLD recurrence after TELD.

Study Design: Retrospective study.

The Outcome of Pulsed Radiofrequency Treatment According to Electodiagnosis in Patients with Intractable Lumbosacral Radicular Pain.

Background: Radicular pain is related to lesions that either directly compromise the dorsal root ganglion (DRG) or indirectly compromise the spinal nerve and its roots by causing ischemia or inflammation of the axons.

Objective: Our study aimed to assess the outcomes of pulsed readiofrequency treatment (PRF) according to electrodiagnosis results in patients with chronic intractable lumbosacral radicular pain.

Methods: A total of 82 failed back surgery syndrome (FBSS) patients were included in this study.

Cerebral Thromboembolic Events During Anterior Cervical Spine Surgery: Retrospective Case Series Study With Diffusion-Weighted Magnetic Resonance Imaging Follow-up in the Immediate Postoperative Period.

Objective: We evaluated the efficacy of diffusion-weighted magnetic resonance imaging (DW-MRI) in detecting perioperative cerebral thromboembolic events after anterior cervical discectomy and fusion (ACDF).

Methods: This retrospective case series included 51 consecutive patients that underwent ACDF. To assess baseline presence of plaque or stenosis, all patients were assessed for risk factors of cerebrovascular events and underwent carotid ultrasound preoperatively and cerebral DW-MRI was performed in all patients postoperatively, with areas of high signal intensity interpreted as a cerebral thromboembolic event.

Association between serum gonadotropin level and insulin resistance-related parameters in Korean women with polycystic ovary syndrome.

Objective: To evaluate the relationship between serum gonadotropin level and parameters related to insulin resistance in Korean women with polycystic ovary syndrome (PCOS).

Methods: This retrospective study included 138 women aged 18 to 35 years who were newly diagnosed with PCOS according to the Rotterdam consensus. Participants were divided into three groups based on the serum luteinizing hormone to follicle-stimulating hormone (LH/FSH) ratio in the early follicular phase: group 1 (LH/FSH <1), group 2 (1.

Epidurographic Findings Following Percutaneous Epidural Adhesiolysis Failed to Correlate with Level of Pain Reduction in Patients with Lumbar Spinal Stenosis.

Background: Spinal stenosis is characterized by narrowing of the spinal canal, with mechanical compression of spinal nerve roots. The latter may cause low back pain and/or leg pain, as well as neurogenic claudication. Epidural steroid injection is commonly used to treat patients with lumbar spinal stenosis (LSS), but percutaneous epidural adhesiolysis has been utilized when symptoms prove refractory.

Risk factors for malignant transformation of mature cystic teratoma.

Objective: The aim of this study was to investigate the preoperative characteristics of benign mature cystic teratoma (MCT) and struma ovarii and their risk factors associated malignancies, and determine the appropriate treatment options for these tumors.

Methods: This was a retrospective study on 248 patients who were pathologically diagnosed with ovarian MCT, struma ovarii, or malignant transformations of these tumors at Inje University Haeundae Paik Hospital from March 2010 to January 2015. Routinely evaluated results of adnexal masses before surgery were compared.

Feasibility of Contralateral Oblique Fluoroscopy-guided Cervical Interlaminar Steroid Injections.

Background: Cervical epidural steroid injection (CESI), given in conjunction with local anesthetics, is a common remedy for cervical radicular pain and is generally performed under c-arm fluoroscopic guidance, computed tomography (CT), or ultrasound. Interlaminar procedures, such as CESI, typically rely on anteroposterior and lateral (APL) views during needle placement. However, lateral views may be obscured by body habitus in certain individuals.