The degree of bacterial contamination while performing spine surgery.

Study Design: Prospective experimental study.

Purpose: To evaluate bacterial contamination during surgery.

Overview Of Literature: The participants of surgery and ventilation system have been known as the most significant sources of contamination.

The difference of surgical site infection according to the methods of lumbar fusion surgery.

Study Design: Retrospective analysis.

Objective: To compare the rates and types of a surgical site infection according to the surgical options in spine surgeries.

Summary Of Background Data: Scant literatures exist on the difference of surgical site infection according to the surgical methods.

Survival and prognostic analysis of adjacent segments after spinal fusion.

Background: To examine the survival function and prognostic factors of the adjacent segments based on a second operation after thoracolumbar spinal fusion.

Methods: This retrospective study reviewed 3,188 patients (3,193 cases) who underwent a thoracolumbar spinal fusion at the author's hospital. Survival analysis was performed on the event of a second operation due to adjacent segment degeneration.

The surgical treatment for spinal intradural extramedullary tumors.

Background: We wanted to investigate the results of surgical treatment and analyze the factors that have an influence on the neurologic symptoms and prognosis of spinal intradural extramedullary (IDEM) tumors.

Methods: The spinal IDEM tumor patients (11 cases) who had been treated by surgical excision and who were followed up more than 1 year were retrospectively analyzed. Pain was evaluated by the visual analogue scale (VAS) and the neurologic function was assessed by Nurick's grade.

A prospective analysis of Oxford phase 3 unicompartmental knee arthroplasty.

We performed 560 minimally invasive unicompartmental knee arthroplasties in patients with osteoarthritis using the Oxford phase 3 prosthesis since January 2002. For the prospective analysis, clinical and radiographic assessments were carried out preoperatively and regularly followed after surgery. Ninety-five cases were followed at 3, 6, 12, 24, and 36 months postoperatively.