Intrathecal volume changes in lumbar spinal canal stenosis following extension and flexion: An experimental cadaver study.

Background: The spinal canal stenosis is a common disease in elderly. The thecal sac narrowing is considered as the anatomical cause for the disease. There is evidence that the anatomical proportions of the lumbar spinal canal are influenced by postural changes.

Anatomical study of preganglionic spinal nerve and disc relation at different lumbar levels: Special aspect for microscopic spine surgery.

Background: Lumbar microdiscectomy is a widespread popular method of treatment. One major challenge is the spine level dependent different anatomy and the limited sight on the nerve root during the surgical procedure.

Objective: The aim was to analyze the specific anatomic relation of nerve root, intervertebral disc and intervertebral ganglion under determination of the specific nerve distances.

Misinterpretation of cup anteversion in total hip arthroplasty using planar radiography.

Introduction: Anteroposterior pelvic radiographs are routinely used to monitor cup orientation in total hip arthroplasty (THA). Analysis of planar radiographs leads to a certain degree of measurement error for the cup anteversion (AV). With the current study, we wanted to clarify whether planar radiography can be used for accurate evaluation of the THA position.

Anatomic referencing of cup orientation in total hip arthroplasty.

Unlabelled: Pelvic tilt and rotation can drastically affect the apparent cup orientation on conventional anteroposterior pelvic radiographs. It was hypothesized that nonstandardized radiographic cup version and abduction can differ significantly from the corresponding anatomic angles if not measured to the anterior pelvic plane, defined by the pubic tubercles and the anterior superior iliac spine. Differences in preoperative and postoperative pelvic orientation and their influence on radiographic measurements of the two angles were analyzed.

Long-term follow-up of open and endoscopic Hohmann procedures for lateral epicondylitis.

Purpose: The long-term outcome of this new endoscopic technique was compared with that of the classical open Hohmann procedure.

Type Of Study: Retrospective cohort study.

Methods: During 1992 and 1995, 37 patients were surgically treated with the Hohmann procedure after failed intensive conservative treatment.

The related outcome and complication rate in primary lumbar microscopic disc surgery depending on the surgeon's experience: comparative studies.

Background Context: Studies concerning intraoperative complications and their influence on the clinical outcome of microscopic disc surgery are quite rare. Complication rates vary between 1.5% and 15.

Participation of cyclooxygenase-1 in prostaglandin E2 release from synovitis tissue in primary osteoarthritis in vitro.

Objectives: To investigate the relative contribution of the cyclooxygenase (COX) isoenzymes COX-1 and COX-2 to prostaglandin E2 (PGE2) release from inflamed synovial tissue in N=10 patients with primary osteoarthritis (OA) in vitro and to determine possible effects of COX inhibitors on the gene expression of synovial COX-1 and COX-2.

Design: The effects of a COX-unspecific nonsteroidal anti-inflammatory drug (NSAID; diclofenac), a selective COX-1 inhibitor (SC-560) and a selective COX-2 inhibitor (SC-58125) on PGE2 release from inflamed synovial tissue (0.1-10 microM, 3 and 6 h incubation time) were compared.

Early results of endoscopic trochanter bursectomy.

Between 1995 and 2000, we performed 45 endoscopic bursectomies in 42 patients (average age 51, range 17-61 years). All patients had at least 6 months of failed conservative treatment, and all responded positively to a sonographic-guided injection with Mepivacaine 0.5%.

Prospective randomized surgical treatments for calcifying tendinopathy.

Thirty-eight patients with chronic calcifying tendinopathy of the shoulder were randomized prospectively into two groups: 19 patients had endoscopic decompression and 19 had open decompression. Thirty-three patients (19 with open and 14 with endoscopic decompression) were available for followup. Clinical and ultrasonographic investigations were done at followup.