Kinematic analysis of dynamic lumbar motion in patients with lumbar segmental instability using digital videofluoroscopy
نویسندگان
چکیده
منابع مشابه
Lumbar Segmental Instability and Deformity
Lumbar spine instability develops as a result of a gradual degenerative process. Segmental instability causes chronic low back pain and decreases the quality of life of the patient. The deformity that develops secondary to lumbar instability is seen as coronal and sagittal imbalance. The diagnosis is made with the radiological and clinical findings. Surgery and stabilization is necessary for th...
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Identification of the source of pain in patients with chronic low back pain remains a challenging subject. The non-invasive investigations lack specificity. The value of invasive tests has also been controversial. At one time discograms used to be considered as the only specific investigation identifying the source of pain prior to fusion surgery; many studies however proved that this is not tr...
متن کاملSegmental instability of the lumbar spine.
The lumbar spine, although often described as a single functional unit, is composed of 5 vertebrae forming what are called "motion segments" connected in series.5 Each motion segment consists of 2 adjacent vertebral bodies and the connecting ligaments.6 Spinal motion segments represent the smallest segments of the spine exhibiting biomechanical characteristics similar to those of the entire spi...
متن کاملAn in vivo kinematic comparison of dynamic lumbar stabilization to lumbar discectomy and posterior lumbar fusion using radiostereometric analysis
BACKGROUND Biomechanical studies have shown that dynamic stabilization restores the neutral zone and stabilizes the motion segment. Unfortunately, there are limitations to clinical measurement of lumbar motion segments when using routine radiographs. Radiostereometric analysis is a 3-dimensional technique and can measure the spinal motion segment more accurately than techniques using plain film...
متن کاملWhat are the reliable radiological indicators of lumbar segmental instability?
We examined the reliability of radiological findings in predicting segmental instability in 112 patients (56 men, 56 women) with a mean age of 66.5 years (27 to 84) who had degenerative disease of the lumbar spine. They underwent intra-operative biomechanical evaluation using a new measurement system. Biomechanical instability was defined as a segment with a neutral zone > 2 mm/N. Risk factor a...
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ژورنال
عنوان ژورنال: European Spine Journal
سال: 2009
ISSN: 0940-6719,1432-0932
DOI: 10.1007/s00586-009-1147-x