Safety and Validity of Anterior Cervical Disc Replacement for Single-level Cervical Disc Disease: Initial Two-year Follow-up of the Prospective Observational Post-marketing Surveillance Study for Japanese Patients.

Anterior cervical disc replacement (ACDR) using cervical artificial disc (CAD) has the advantage of maintaining the range of motion (ROM) at the surgical level, subsequently reducing the postoperative risk of adjacent disc disease. Following the approval for the clinical use in Japan, a post-marketing surveillance (PMS) study was conducted for two different types of CAD, namely, Mobi-C (metal-on-plastic design) and Prestige LP (metal-on-metal design). The objective of this prospective observational multicenter study was to analyze the first 2-year surgical results of the PMS study of 1-level ACDR in Japan.

Usefulness of the middle cerebellar peduncle approach for microsurgical resection of lateral pontine arteriovenous malformation.

Surgical treatment of brainstem arteriovenous malformation (AVM) is challenging and associated with a higher risk of complications and a lower rate of gross-total resection. The authors present their experience with the surgical management of lateral pontine AVM using the middle cerebellar peduncle approach. All cases presented with neurological deficits that were caused by hemorrhage before surgery.

Lumbar Degenerative Spondylolisthesis: Changes in Surgical Indications and Comparison of Instrumented Fusion With Two Surgical Decompression Procedures.

Study Design: Single-center retrospective case series.

Objective: To compare outcomes of instrumented fusion and two methods of decompression for degenerative spondylolisthesis.

Summary Of Background Data: There is no consensus on the surgical indications or optimum techniques for lumbar degenerative spondylolisthesis.

[Stent-in-Stenting for In-Stent Stenosis after Carotid Artery Stenting:A Report of 2 Cases].

Standard strategy for the treatment of subacute in-stent stenosis after carotid artery stenting remains controversial. We report the successful application of stent-in-stenting in 2 patients with subacute in-stent stenosis of the internal carotid arteries (ICA). The postoperative courses of both patients were uneventful, and the patency of the ICA was confirmed at the 2-year follow-up.

[Chronic subdural hematoma organized over a short period of time with spontaneous intracranial hypotension: a case report].

Spontaneous intracranial hypotension (SIH) can develop after cerebrospinal fluid (CSF) leakage and is accompanied by various symptoms, including headache and neck pain. In recent years, cases of chronic subdural hematoma (CSDH) that develop concomitantly with SIH have been encountered occasionally. Although various reports regarding the priority of treatment exsist, a conclusive opinion has yet to be given.

Endonasal endoscopic transsphenoidal chiasmapexy with silicone plates for empty sella syndrome: technical note.

Silicone plates sutured together to form blocks were used for extradural elevation of the sella floor in two patients who underwent chiasmapexy for visual disturbance associated with empty sella syndrome. A 36-year-old woman had been treated for prolactinoma for about 19 years with bromocriptine and then presented with left visual disturbance. A 79-year-old man presented with right blurred vision of unknown cause other than empty sella.

Suture knot on the repair splint: a simple method to facilitate reconstruction of the sella turcica during endonasal endoscopic transsphenoidal surgery. Technical note.

Reconstruction of the sellar floor after pituitary tumor removal is sometimes difficult because the repair graft is difficult to handle in the narrow space. This is especially problematic if the endonasal endoscopic approach is used. The authors devised a technique to facilitate this procedure by placing a suture knot on the repair splint.

Repair of intractable cerebrospinal fluid rhinorrhea with mucosal flaps and recombinant human basic fibroblast growth factor: technical case report.

Objective And Importance: Repair of a cerebrospinal fluid leak is not always easy, especially when a large fistula, with concomitant infection and injured mucosa, has developed from repeated transsphenoidal operations. We repaired such a sellar floor defect with mucosal flaps via the endonasal endoscopic approach and finally obliterated the fistula by promoting granulation-like tissue formation with recombinant human basic fibroblast growth factor (bFGF).

Clinical Presentation: A 27-year-old woman with intractable cerebrospinal fluid rhinorrhea was referred to our department after repeated operations for a relapsing Rathke's cleft cyst.