A postoperative complication of lumbar discectomy: A discal/annular cyst.

Background: A postoperative discal/annular cyst following lumbar discectomy may reproduce the symptoms/signs of a recurrent lumbar disc herniation (i.e., back pain and radiculopathy).

Foramen magnum decompression in adults with Chiari type 1 malformation: use of intraoperative ultrasound to guide extent of surgery.

Background: Foramen magnum decompression (FMD) is an established technique for patients with Chiari-1 malformation. However, the extent of decompressive surgery is controversial, in particular whether dural opening is undertaken.

Objective: In this study, we report outcomes with our technique utilising intraoperative ultrasound (iOU) findings.

Use of lumboperitoneal shunts with the Strata NSC valve: a single-center experience.

Object: The lumboperitoneal (LP) shunt with the adjustable PS Medical Strata NSC LP valve and small lumen peritoneal catheter was introduced in the authors' unit in 2007. The object of this study was to audit the unit's experience with this new shunt system.

Methods: The authors performed a retrospective review of the clinical records of patients who underwent Strata NSC LP shunt insertion.