요추부 유합수술 후 가동인접분절의 후기변화 = Late Changes at the Adjacent Segments to Lumbar Fusions

다국어 초록 (Multilingual Abstract)

The spinal fusion in a lumbar region may influence biomechanically in the remained
mobile segment to take over the lost motions Therefore the stress concentration on the
adjacent segments may accelerate the degenerative changes, and then various late
changes could occur. The aim of this study was to evaluate the late changes occuring
in the adjacent segments to lumbar fusions.
A retrospective review of radiographs and medical records was undertaken for 67
consecutive patients who had undergone various fusions in the lumbar region for various
pathologic conditions. Included in this study were the patients who had performed active
daily livings without any significant pain or disability after fusion and followed for a
minimum of five years(up to 18 years with a mean of 8.3 years).
The results of this study were as follows :
The instability, disc narrowing, spinal stenosis, vertebral slipping, or isthmic defect were
found in the adjacent segments to fusions in the patients who were followed longer, in
L4-5 segment and above segment of fusion, and in the adjacent segments where a
degenerative changes existed before surgery and where the angular motion increased
considerably in a few years after fusion. The symptoms of these patients were
responded well with conservative theraphy and no patient needed any surgical theraphy
during these follow-up periods.