Stage-specific sagittal spinopelvic alignment changes in osteoarthritis of the hip secondary to developmental hip dysplasia.

Study Design: A retrospective, age- and sex-matched radiographic study.

Objective: To compare the sagittal spinopelvic alignment in patients with hip osteoarthritis (OA) stratified by stage with that of age-matched control groups.

Summary Of Background Data: OA of the hip resulting from developmental hip dysplasia could be a cause of low back syndrome.

Postoperative enteroparesis by patient-controlled analgesia combined with continuous epidural block for patients after posterior lumbar surgery.

This study evaluated postoperative enteroparesis influenced by patient-controlled analgesia combined with continuous epidural block in patients who underwent posterior lumbar surgery. One hundred nine patients were divided into three groups at random (group 1, controls (18 patients); group 2, postoperative patient-controlled analgesia and continuous epidural block (45 patients); group 3, one-shot epidural analgesia, postoperative patient-controlled analgesia, and continuous epidural block (46 patients). The patients in groups 2 and 3 had more satisfactory pain relief and needed analgesics less frequently.

Nutritional supply to the cauda equina in lumbar adhesive arachnoiditis in rats.

Laminectomy-induced cauda equina adhesion has been proved by rat experiments and postoperative serial MRI in humans. A degenerative change of the cauda equina has been proved when cauda equina adhesion has been prolonged. Since it has not been reported how the nutritional supply is changed in such a condition, we evaluated the glucose supply to the adhered cauda equina in rats.

Significance of patient-controlled analgesia in combination with continuous epidural block for patients who underwent posterior lumbar surgery.

The purpose of the study was to evaluate the efficiency of patient-controlled analgesia (PCA) combined with continuous epidural block in patients who underwent lumbar spine surgery. In group 1 (postoperative PCA group), 23 patients were administered postoperative continuous epidural block in combination with analgesics, which was self-regulated by the patient using a device. In contrast, the 22 patients in group 2 (control group) received suppositories or intramuscular injections of analgesics on request.

Postlaminectomy adhesion of the cauda equina. Inhibitory effects of anti-inflammatory drugs on cauda equina adhesion in rats.

Study Design: Effects of the systemic administration of anti-inflammatory drugs on cauda equina adhesion after lumbar laminectomy were evaluated in rats.

Objectives: To obtain basic data on preventive measures for lumbar adhesive arachnoiditis.

Summary Of Background Data: Laminectomy-induced cauda equina adhesion has been proved by rat experiments and postoperative serial magnetic resonance imaging tests in humans.