1. Editorial

   EditorialNotes Pages: 117 - 117

2. Strength reductions of thoracic vertebrae in the presence of transcortical osseous defects: effects of defect location, pedicle disruption, and defect size

   • M. J. Silva
   • J. A. Hipp
   • W. C. Hayes

   Original Articles Pages: 118 - 125

3. Enhanced prolylhydroxylase activity in the posterior annulus fibrosus of canine intervertebral discs following long-term running exercise

   • K. Puustjärvi
   • T. Takala
   • V. Kovanen

   Original Articles Pages: 126 - 131

4. Urethral catheterization in spinal surgery: a randomized prospective study

   • H. Normelli
   • S. Aaro
   • L. Strömberg

   Original Articles Pages: 132 - 135

5. Frequency of complications of manipulation of the spine

   • J. Dvořák
   • D. Loustalot
   • J. A. Antinnes

   Original Articles Pages: 136 - 139

6. A functional-anatomical approach to the spine-pelvis mechanism: interaction between the biceps femoris muscle and the sacrotuberous ligament

   • J. P. van Wingerden
   • A. Vleeming
   • R. Stoeckart

   Original Articles Pages: 140 - 144

7. Do Augmentin or cefuroxime reach effective levels in lumbar vertebral discs when used prophylactically for discectomy?

   • P. L. Housden
   • M. F. Sullivan

   Original Articles Pages: 145 - 148

8. Lumbar discal herniation in the elderly: long-term results of chymopapain chemonucleolysis

   • M. Benoist
   • H. Parent
   • A. Deburge

   Original Articles Pages: 149 - 152

9. Long-term results after Harrington instrumentation: increased translation and pain

   • M. Krismer
   • C. Wimmer
   • W. Kerber

   Original Articles Pages: 153 - 158

10. Reduction and stabilization of lumbar and thoracolumbar spine fractures with Louis' plates and internal fixator: a comparative study

    • P. Zangger
    • T. Pache

    Original Articles Pages: 159 - 164

11. Comparison of epidemiology, methods, and results of treatment in cervical spinal injuries over the last 20 years in Poland

    • J. E. Kiwerski

    Original Articles Pages: 165 - 168

12. Posterior spinal fusion of the cervical spine using the Alligator plate: operative technique and clinical results

    • T. Fuji
    • M. Tanaka
    • H. Hamada

    Original Articles Pages: 169 - 174

13. Acute pericardial tamponade complicating spinal surgery in a child with Duchenne muscular dystrophy

    • N. A. Watkin
    • I. Ostman-Smith
    • J. C. T. Fairbank

    Case Report Pages: 175 - 176

14. Announcements

    Announcement Pages: 177 - 177