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Assessing the consequences of lumbar posterior stabilization and fusion to vertebral bone density in stabilized and adjoining segments through the use of Hounsfield unit.
J Backbone Surg. 2017 Dec;Three(Four):548-553
Authors: Demir Ö, Öksüz E, Deniz FE, Demir O
Summary
Background: Computed tomography (CT) with Hounsfield unit (HU) is getting used with rising frequency for figuring out bone density. Established correlations between HU and bone density have been proven within the literature. The intention of this retrospective examine was to find out the bone density adjustments of the stabilized and adjoining phase vertebral our bodies by evaluating HU values earlier than and after lumbar posterior stabilization.
Strategies: Sixteen sufferers who had related analysis of lumbar spondylosis and stenosis have been evaluated on this examine. Similar surgical procedures have been carried out to the entire sufferers with L2-Three-Four-5 transpedicular screw fixation, fusion and L3-Four complete laminectomy. Bone mineral density measurements have been obtained with medical CT. Measurements have been obtained from stabilized and adjoining phase vertebral our bodies. Densities of vertebral our bodies have been evaluated with HU earlier than the surgical procedures and roughly one 12 months after the surgical procedures. The preoperative HU worth of every vertebra was in contrast with postoperative HU worth of the identical vertebrae through the use of statistical evaluation.
Outcomes: The HU values of vertebra within the stabilized and adjoining segments persistently decreased after the operations. There have been important variations between the preoperative HU values and the postoperative HU values of the all evaluated vertebral our bodies within the stabilized and adjoining segments. Moreover first sacral vertebra HU values have been discovered to be considerably greater than lumbar vertebra HU values within the preoperative group and postoperative group.
Conclusions: Lower within the bone density of the adjoining phase vertebral our bodies could also be one of many main predisposing components for adjoining phase illness (ASD).
PMID: 29354730 [PubMed]