Measurement of Vertebral Compression and Kyphosis in the Thoracolumbar and Lumbar Fractures

Son, Kwang Hyun; Chung, Nam-Su; Jeon, Chang Hoon

doi:10.4184/jkss.2010.17.3.120

Cited by 12 publications

(16 citation statements)

References 22 publications

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“…This study found that a compression fracture with a greater local kyphotic angle tended to increase the incidence of vertebral refracture after vertebroplasty (p<0.001, p=0.004); refracture of a cemented vertebra occurs more frequently due to the stiffness imbalance within the vertebral body concerned, because cement was intensively injected into the anterior vertebra to correct the local kyphotic angle, which had increased while treating the compression fracture. Additionally, osseous tissues around the anterior vertebral body are restored late and incompletely because of relatively fewer primary periosteal arteries, which are important vertebral body feeding arteries, and are distributed in the anterior vertebral body 24. Arterial damage more frequently occurs in the anterior region when the vertebral body collapses 25.…”

Section: Discussionmentioning

confidence: 99%

Predictive Risk Factors for Refracture after Percutaneous Vertebroplasty

et al. 2011

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ObjectiveTo identify risk factors for developing a vertebral refracture after percutaneous vertebroplasty.MethodA retrospective analysis of 60 patients who had undergone percutaneous vertebroplasty between January 2008 and April 2010 was conducted. All patients were observed for a 1 year follow-up period, and fracture was defined when it was both clinically reported and radiographically confirmed. Twenty-seven patients with a refractured vertebra and 33 patients without a refracture were included. Of the 60 patients, 20 presented with a refracture from a cemented vertebra, whereas the remaining 40 patients did not. Clinical, imaging and procedure-related factors for each group were analyzed by the Fisher's exact, chi-square, and the Mann-Whitney U-tests.ResultsLocal kyphotic angle and sagittal index were significant as a result of researching various risk factors related to vertebral refracture (p<0.001, p<0.001, respectively) and refracture from a cemented vertebra itself (p=0.004, p<0.001, respectively). Other factors were not significant.ConclusionPatients who had a high preoperative local kyphotic angle and a high sagittal index required a close follow-up and attention.

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Section: Discussionmentioning

confidence: 99%

Predictive Risk Factors for Refracture after Percutaneous Vertebroplasty

et al. 2011

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“…Various methods of measurement were suggested for the compression ratio of VCFs; [ 25 , 26 ] most physicians usually adopt VBCR. [ 1 ] However, VCFs may involve the entire vertebral body including the posterior height and the compression may be underrated, AVBCP calculated with the mean value of anterior heights between upper and lower vertebrae was recommended in case the adjacent vertebrae were not affected.…”

Section: Discussionmentioning

confidence: 99%

“…[ 40 ] Therefore, local kyphotic angle, also known as wedge angle, was measured in this study. [ 1 , 25 ] The local kyphotic angle of osteoporotic VCFs with necrotic area less than 25% of the entire vertebral body changed from 11.7 ± 6.5° initially to 15.9 ± 6.7° at six months. [ 5 ] Local kyphotic angle of traumatic VCFs in the current study showed less value than osteoporotic VCFs, but the change was more than 17.2% of baseline local kyphotic angle as MCID.…”

Section: Discussionmentioning

confidence: 99%

“…anterior vertebral body compression percentage (AVBCP) at VCF level as (1–anterior height of VCF/[(anterior height of upper vertebra + anterior height of lower vertebra)/2]) × 100. [ 1 , 25 – 27 ] The angle between the superior and inferior endplates of each vertebral bone was measured as the local kyphotic angle. [ 1 , 25 , 28 ]…”

Section: Methodsmentioning

confidence: 99%

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Natural changes of traumatic vertebral compression fractures during the first 6 months in patients visiting for disability certificates

Bae¹,

Suh²,

Kim³

et al. 2021

Medicine

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To identify the natural changes of traumatic vertebral compression fractures during the first six months in patients visiting for disability certificates after conservative treatment. Data of patients who visited the rehabilitation medicine department of a university hospital for disability certificates concerning traumatic vertebral compression fractures from 2015 to 2018 were reviewed. Those who visited 180 to 210 days after injuries were included, and those who received invasive procedures for compression fractures were excluded. The anterior and posterior heights, local kyphotic angle of compression fractures, and upper and lower vertebrae on initial and follow-up images were measured and compared. Compression ratio was calculated by vertebral body compression ratio and anterior vertebral body compression percentage. Thoracic and lumbar traumatic fractures were also compared. Among 110 patients, 61 patients met the criteria. After six months, the anterior height of compression fractures decreased more than 4 mm, which implies the development of new compression fractures. The compression ratio and local kyphotic angle increased significantly without affecting the upper and lower vertebrae. Thoracic and lumbar compression fractures showed similar changes. Traumatic vertebral compression fractures change significantly during the first six months. This study could warrant 6 months of waiting for issuance of disability certificates for patients with traumatic vertebral compression fractures.

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“…The local kyphotic angle is the angulation between the superior and inferior plates of the fractured vertebra [13] (Fig. 3).…”

Section: Methodsmentioning

confidence: 99%

Impact of Screw Type on Kyphotic Deformity Correction after Spine Fracture Fixation: Cannulated versus Solid Pedicle Screw

et al. 2018

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Study DesignRetrospective review.PurposeTo detect the effect of cannulated (poly-axial head) and solid (mono-axial head) screws on the local kyphotic angle, vertebral body height, and superior and inferior angles between the screw and the rod in the surgical management of thoracolumbar fractures.Overview of LiteratureBiomechanics studies showed that the ultimate load, yield strength, and cycles to failure were significantly lower with cannulated (poly-axial head) pedicle comparing to solid core (mono-axial head).MethodsThe medical charts of patients with thoracolumbar fractures who underwent pedicle screw fixation with cannulated or solid pedicle screws were retrospectively reviewed; the subjects were followed up from January 2011 to December 2015.ResultsTotal 178 patients (average age, 36.1±12.4 years; men, 142 [84.3%]; women, 28 [15.7%]) with thoracolumbar fractures who underwent surgery and were followed up at Hamad Medical Corporation were classified, based on the screw type as those with cannulated screws and those with solid screws. The most commonly affected level was L1, followed by L2 and D12. Surgical correction of the local kyphotic angle was significantly different in the groups; however, there was no significant difference in the loss of correction of the local kyphotic angle of the groups. Surgical correction of the reduction in the vertebral body height showed statistical significance, while the average loss of correction in the reduction of the vertebral body height was not significantly different. The measurement of the angles made by the screws on the rods was not significantly different between the cannulated (poly-axial head) and solid (mono-axial head) screw groups.ConclusionsSolid screws were superior in terms of providing increased correction of the kyphotic angle and height of the fractured vertebra than the cannulated screws; however, no difference was noted between the screws in the maintenance of the superior and inferior angles of the screw with the rod.

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Measurement of Vertebral Compression and Kyphosis in the Thoracolumbar and Lumbar Fractures

Cited by 12 publications

References 22 publications

Predictive Risk Factors for Refracture after Percutaneous Vertebroplasty

Predictive Risk Factors for Refracture after Percutaneous Vertebroplasty

Natural changes of traumatic vertebral compression fractures during the first 6 months in patients visiting for disability certificates

Impact of Screw Type on Kyphotic Deformity Correction after Spine Fracture Fixation: Cannulated versus Solid Pedicle Screw

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