[Management of patients with vestibular schwannoma type IV].

Background: Vestibular schwannomas (VSs) are benign, slow-growing tumors that are classified by the Koos and Hannover grading scales. Despite extensive study, the management of large VS remains controversial.

Patients And Methods: Between 2003 and 2018, 61 patients with VS grade IV were treated in our institution.

[Application of transarticular C1/2 screws connected with C1 lateral mass screws in a rod-screw system].

Fractures of the second cervical vertebra with involvement of the odontoid process can mostly be treated conservatively by immobilization. In the case of high-grade unstable fractures and pseudarthrosis dorsal C1/2 spondylodesis should be considered.Based on established atlantoaxial osteosynthesis techniques for dorsal C1/2 spondylodesis, a polyaxial screw-rod system with C1/2 transarticular screws connected with C1 lateral mass screws was carried out in a 56-year-old male patient with dislocated odontoid fracture.

Vertebral Body Osteolysis 6 Years After Cervical Disk Arthroplasty.

Cervical arthroplasty is an accepted and widely performed surgical intervention with usually favorable outcomes. We report a rare case of a 37-year-old woman who presented with vertebral body osteolysis, 6 years after two-level cervical arthroplasty (C5-C6 and C6-C7). The patient showed no initial complications, but at year 6 she presented with neck and radicular arm pain.

Three-point atlantoaxial fixation with C1-C2 transarticular screws and C1 lateral mass screws.

Background: Based on established posterior atlantoaxial fixation techniques, we present a novel technique that uses a polyaxial screw rod system and utilizes a combination of C1 lateral mass and C1-C2 transarticular screws.

Methods: We conducted a retrospective review of six men and four women (mean age: 57, range: 20-86). Indication for atlantoaxial fixation was type II odontoid fractures or pseudarthrosis after odontoid fracture ( = 7), rheumatoid arthritis ( = 2) and os odontoideum ( = 1).

Radiological and Clinical Outcome after Multilevel Anterior Cervical Discectomy and/or Corpectomy and Fixation.

Background: Multilevel anterior cervical decompression and fixation of four and more levels is a common surgical procedure used for several diseases.

Methods: We reviewed the radiological and clinical outcomes after anterior cervical discectomy or corpectomy and fixation of four and more levels in 85 patients (55 men and 30 women) with an average age of 59.6 years.

Association between vertebral artery hypoplasia and vertebral artery aneurysms: A case-control study.

Background: The aim of this retrospective case-control study is to determine the association of vertebral artery hypoplasia (VAH) and other anatomical variants with saccular vertebral artery posterior inferior cerebellar artery (VA-PICA) aneurysms.

Methods: The prevalence of VAH, vertebral artery (VA) atresia, VA aplasia, and PICA aplasia was analyzed using CT angiography in 64 patients with VA-PICA aneurysms (43 ruptured and 21 unruptured) and compared to 128 age- and sex-matched controls. Logistic regression was performed to identify independent risk factors for aneurysm formation.

Clinical features, microsurgical treatment, and outcome of vestibular schwannoma with brainstem compression.

Background: Presenting symptoms, treatment considerations, and outcome are strongly related to the extension of vestibular schwannomas (VS). The aim of the current retrospective study was to analyze the clinical features, microsurgical treatment, and outcome of VS with brainstem compression.

Methods: Forty-nine patients presented with VS (Hannover grading scale T4a or T4b) in our department.