Introduction. More than a quarter of total number of posterior fixations of
thoracolumbar spine is unsuccessful. Material and methods. The aim is to
compare short and long fixation of thoracolumbar spine injuries. During the
period of 2006 to 2015 we examined 99 patients at the Department of
Orthopedic Surgery and Traumatology of Clinical Center of Vojvodina. Short
fixation was performed in 63 cases and long fixation in 36 cases. All
patients underwent clinical, radiographic and neurological evaluation. Mean
age in the short fixation group was 47 (18-66) and in the long fixation
group it was 43 (17-70). Mean follow-up time was 4,5 years. Results.
Implants were extracted in 14 cases of short and in 4 cases of long
fixation. Collapse of anterior part of vertebral body developed in 28,45%
in the short fixation group and in 22,43% in the long fixation group whereas
angulation value was 10,2o and 12,3o respectively. Mean low back outcome
scale value was 61 points in the short fixation group and 50 in the long
fixation group. There were 22 patients with neurological deficit. Full
recovery was recorded in 8 patients (36,4%) of the short fixation group and
in 17 patients (22,7%) of the long fixation group. Complications developed
in 15 patients (23,8%) of the short fixation group and 11 (30,6%) of the
long fixation group. Conclusion. Short fixation is biomechanically weaker
but provides a better functional recovery than long fixation.