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C1 Lateral Mass Screw Insertion Caudally From the C2 Nerve Root to Avoid Craniocervical Fusion in a Patient With Atlantoaxial Subluxation Associated With Ponticulus Posticus: A Case Report.
Cureus
November 2024
Spinal Surgery, Hachioji Spine Clinic, Hachioji, JPN.
This report describes the case of a 78-year-old female patient with a rare complex upper cervical spine disorder combined with atlantoaxial subluxation (AAS), ponticulus posticus (PP), and high-riding vertebral artery (HRVA), treated with posterior C1-C3 screw fixation. To avoid vertebral artery injury during screw insertion, a C1 lateral mass screw (LMS) on the PP side was inserted from the caudal side of the C2 nerve root. Preoperative three-dimensional CT angiography is important for selecting the optimal posterior screw entry point and trajectory among several screw options.
View Article and Find Full Text PDFPseudoachondroplasia associated with os odontoideum and retro-odontoid mass: case-based update.
Childs Nerv Syst
November 2024
Department of Neurosurgery, Birmingham Children's Hospital, Steelhouse Lane, Birmingham, B4 6NH, UK.
Purpose: Pseudoachondroplasia is a rare skeletal dysplasia caused by a mutation in the COMP gene. Infants with pseudoachondroplasia present with rhizomelic dwarfism. Pseudoachondroplasia can resemble achondroplasia, which also presents with a phenotype of rhizomelic dwarfism.
View Article and Find Full Text PDFSymptomatic Multi-Nodular Fourth Ventricular Choroid Plexus Papillary Fibrosis in the Context of Chiari II Malformation: Case Report and Literature Review.
Pediatr Neurosurg
October 2024
Division of Neurosurgery, Children's Hospital of Orange County, Orange, California, USA.
Article Synopsis
- Chiari II malformation (CM-II) is a congenital condition involving the displacement of brain structures through the foramen magnum, and it can lead to various mass lesions in the brain.
- A 9-year-old boy with a history of CM-II and related health issues underwent successful surgery to remove multiple masses from his fourth ventricle, which improved his hand dexterity and strength.
- The pathology of these masses was characterized by choroid plexus papillary fibrosis, a finding not previously documented in similar cases, highlighting a unique histological profile of the lesions.
Primary jugular foramen fibrous dysplasia: surgically nuanced video of extradural infratemporal transjugular approach. Illustrative case.
J Neurosurg Case Lessons
October 2024
Centro de Neurologia e Neurocirurgia - CNNc, Hospital Ernesto Dornelles, Porto Alegre, Rio Grande do Sul, Brazil.
Article Synopsis
- Fibrous dysplasia of the bone is a condition linked to a GNAS mutation that can affect craniofacial bones and impact nearby neurovascular structures; this case presents the first known instance of this condition affecting the jugular foramen, causing blockage of critical brain sinuses.
- A 33-year-old man experiencing dizziness and occasional swallowing difficulties underwent imaging that revealed a mass in the left jugular foramen, leading to a successful surgical removal of the tumor while preserving his lower cranial nerves.
- This case underscores the need for awareness of fibrous dysplasia in jugular fossa assessments and emphasizes the importance of surgical expertise in ensuring patient outcomes and preserving nerve function.
Database Review of 514 Patients with Os Odontoideum. Detailed Analysis of 258 Surgically Treated (1978-2019).
Adv Tech Stand Neurosurg
September 2024
Department of Neurosurgery, University of Iowa Hospitals and Clinics, Stead Family Children's Hospital, Iowa, USA.
Objective: Database review (1978-2019) is to identify the cause of os odontoideum, its presentation, associated abnormalities, and management recommendations.
Methods And Materials: Review of referral database of 514 patients and 258 surgically treated patients ages 4-64 years. Detailed history of early childhood trauma and initial encounter record retrieval were made.
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