J Korean Soc Spine Surg.  1998 May;5(1):62-69.

Surgical Management of Thoracolumbar Spine Fracture with Pedicle Screws and Inferior Laminar Hooks

• Wang JM
• Roh KJ
• Yun YH
• Ko YD
• Oh JK
• Jeong H
• Kim DJ

Abstract

STUDY DESIGN: Clinical and radiographic results of spine fracutre treated with pedicle screws and hooks were reviewed.
OBJECTIVES
Evaluate the efficacy of tile pedicle screw and hook for thoracolumar bursting fracture. SUMMARY OF LITERATURE REVIEW: Despite of the mechanical advantage of the pedicle screw, the metal failure in short segment fusion has been reported. A biomechanical study showed additional laminar hook increased rotational strength. MATERIALS AND METHODS: Between 1994 and 1996, seventeen patients who had a Denis type B bursting fracture of the thoracolumbar spine were treated by posterior instrumentation with pedicle screws and laminar hooks and auterior interbody fusion after partial corpectomy. They have been followed for an average of 13.4 months.
RESULTS
At last follow-up, radiographs showed successful fusion of the injured spinal segment in all patient. The subsidence of grafts which were used In anterior interbody fusion was an average of 0.76mm. There was a loss of 2.6 degrees on average in the correction of the kyphosis. No patients had screw breakage or loosening.
CONCLUSIONS
We concluded that posterior fixation with screws and hooks, anterior decompression by partial corpectomy, and strut-grafting in patient who had a Denis type B bursting frafture of the thoracolumbar spine yielded good radiographic and functional results.

MeSH Terms

Decompression
Follow-Up Studies
Humans
Kyphosis
Spine*
Transplants