Analysis of Risk Factors for Cervical Kyphotic Deformity Despite Laminar Reconstruction in Cervical Intradural Tumor Surgery.

Background And Objectives: Despite successful cervical intradural tumor resection, kyphotic deformity remains a significant concern affecting patients' quality of life. To prevent this, laminectomy is often followed by laminar reconstruction, yet kyphosis can still develop. The aim of this study was to identify risk factors contributing to postoperative kyphotic deformity in patients undergoing laminar reconstruction for cervical intradural tumors.

Different nuances between patient- and surgeon-reported outcomes in intramedullary ependymoma surgery.

Objective: With regard to intramedullary ependymoma surgery, most studies have presented surgeon-reported outcomes (SROs) such as McCormick grade, but few have evaluated patient-reported outcomes (PROs) using quality-of-life questionnaires. This retrospective study of patients who underwent surgery for intramedullary ependymoma was performed to analyze PROs and compare them with SROs.

Methods: PROs were assessed using EQ-5D-5L (5-level version of the 5-dimension EuroQoL questionnaire) data collected preoperatively and at least 6 months postoperatively from patients with histologically confirmed ependymoma treated with surgery between September 2016 and December 2023.

Comparison of suboccipital craniectomy versus suboccipital cranioplasty in foramen magnum decompression for adult Chiari malformation.

Objective: Foramen magnum decompression (FMD) by suboccipital craniectomy, which aims to restore CSF flow and alleviate symptoms, is the conventional treatment for symptomatic Chiari malformation (CM). However, suboccipital cranioplasty is considered to maintain cervical alignment, prevent headaches, improve cosmetic outcomes, and provide protection against trauma. The aim of this study was to compare two surgical techniques, suboccipital craniectomy and suboccipital cranioplasty, to evaluate clinical outcomes, radiological results, and medical costs.

A Comparative Study of Spinous Process Splitting Laminectomy and Laminoplasty for Thoracolumbar Intradural Spinal Tumor Surgery.

Background And Objectives: In intradural spinal tumor surgery, laminoplasty (LP) aims to better preserve posterior spinal structures compared with laminectomy, potentially reducing complications such as deformity and cerebrospinal fluid leakage. Spinous process splitting laminectomy (SPSL), a modified form of laminectomy, also maintains the integrity of posterior spinal elements. However, there is concern regarding postoperative fluid collection at the laminectomy site.

Features of the Filum Terminale in Tethered Cord Syndrome with Focus on Pathology.

Objective: Filum transection is one of the most commonly performed operative procedure in pediatric neurosurgery. However, the clinical and pathological features as well as the surgical indication are not well-established. This study aimed to analyze the characteristics of patients who underwent transection of the filum during the last 10 years in a single institute.