Correlation between Acetabular Anteversion with a False-Profile View and Spinopelvic Parameters in Adult Spinal Deformity after Long-Segment Corrective Spinal Surgery.

Introduction: Studies describing the relationship between the hip and spine have reported that corrective spinal surgery for adult spinal deformity (ASD) affects the orientation of the acetabulum. However, the extent to which spinal correction in ASD affects acetabular anteversion in the standing position is unclear, especially after total hip arthroplasty, for which dislocation is a concern. The purpose of this study was to evaluate changes in anterior acetabular coverage in the upright position due to extensive correction surgery for ASD.

Incidence and Risk Factors for Hyponatremia in Postoperative Spinal Surgery Patients.

Introduction: The incidence of hyponatremia after orthopedic surgery is high. Hyponatremia may prolong hospitalization and increase mortality, but few reports have identified risk factors for hyponatremia after spinal surgery. This study aims to determine the incidence and risk factors for hyponatremia after spinal surgery.

Removal of a migrated acupuncture needle from the cervical spinal canal with removal confirmation by cone-beam computed tomography in a hybrid operating room.

Background: Acupuncture has become one of the most popular alternative medical treatments in the world. However, if the needle is inserted incorrectly into the body, various adverse events can occur and, in such cases, the needle should be removed. Acupuncture needles are very thin and fragile, making them difficult to detect and to confirm breakage or residual needle fragments during surgery.