Rate of Unexpected Malignancy in Patients Undergoing Percutaneous Vertebroplasty after Implementing a New Scanning Protocol.

Study Design: Retrospective quality improvement study.

Objective: To investigate if the rate of unsuspected malignancy in biopsies in patients with VCF who underwent percutaneous vertebroplasty (PVP) at the same orthopedic department has changed after the implementation of a new MRI scanning protocol.

Summary Of Background Data: Discrimination between benign and malign vertebral compression fracture (VCF) can be difficult.

Radiological Definitions of Sagittal Plane Segmental Instability in the Degenerative Lumbar Spine - A Systematic Review.

Study Design: Systematic Review.

Objective: To collect and group definitions of segmental instability, reported in surgical studies of patients with lumbar spinal stenosis (LSS) and/or lumbar degenerative spondylolisthesis (LDS). To report the frequencies of these definitions.