Abstract:
STUDY DESIGN:A radiographic comparison of the mechanical efficacy of the Hartshill rectangle and that of the AO internal spinal skeletal fixation systems in the management of unstable burst fractures of the thoracic and lumbar spine. OBJECTIVES:To study the restoration and maintenance of normal spinal anatomy after open reduction and internal fixation of unstable burst fractures of the thoracic and lumbar spine. SUMMARY OF BACKGROUND DATA:There are laboratory studies documenting the biomechanical advantages of the AO internal spinal skeletal fixation systems. There have been no previous comparisons of the internal spinal skeletal fixation system with the Hartshill rectangle and sublaminar wiring in matched patient groups. METHODS:Radiographs obtained before surgery, immediately after surgery, and at 2 years after surgery were used to assess the restoration and maintenance of normal spinal anatomy in 14 patients who had undergone stabilization with the Hartshill System and in 12 patients who had undergone internal fixation using the AO internal spinal skeletal fixation system. RESULTS:The initial restoration of normal spinal anatomy was good using both systems. However, on examination 2 years after surgery, it was found that the AO system provided significantly superior maintenance of both middle (P < 0.01) and anterior column anatomy (P < 0.001). CONCLUSION:The AO internal spinal skeletal fixation systems is associated with significantly superior maintenance of spinal anatomy 2 years after surgery.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Cresswell TR,Marshall PD,Smith RBdoi
10.1097/00007632-199801010-00022subject
Has Abstractpub_date
1998-01-01 00:00:00pages
111-5issue
1eissn
0362-2436issn
1528-1159journal_volume
23pub_type
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