Dorsal epidural intervertebral disk herniation with atypical radiographic findings: case report and literature review.

Background/objective: Intervertebral disk herniation is relatively common. Migration usually occurs in the ventral epidural space; rarely, disks migrate to the dorsal epidural space due to the natural anatomical barriers of the thecal sac.

Design: Case report.

Potential financial impact of restriction in "never event" and periprocedural hospital-acquired condition reimbursement at a tertiary neurosurgical center: a single-institution prospective study.

Object: The Centers for Medicare and Medicaid Services (CMS) have moved to limit hospital augmentation of diagnosis-related group billing for "never events" (adverse events that are serious, largely preventable, and of concern to the public and health care providers for the purpose of public accountability) and certain hospital-acquired conditions (HACs). Similar restrictions may be applied to physician billing. The financial impact of these restrictions may fall on academic medical centers, which commonly have populations of complex patients with a higher risk of HACs.