Factors Influencing Early Disc Height Loss Following Lateral Lumbar Interbody Fusion.

Factors Influencing Early Disc Height Loss Following Lateral Lumbar Interbody Fusion. Asian Spine J. 2020 Mar 30;: Authors: Kaliya-Perumal AK, Soh TLT, Tan M, Oh JY Abstract Study Design: Retrospective radiological analysis. Purpose: To analyze the factors influencing early disc height loss following lateral lumbar interbody fusion (LLIF). Overview of Literature: Postoperative disc height loss can occur naturally as a result of mechanical loading. This phenomenon is enabled by the yielding of the polyaxial screw heads and settling of the cage to the endplates. When coupled with cage subsidence, there can be significant reduction in the foraminal space which ultimately compromises the indirect decompression achieved by LLIF. Methods: Seventy-two cage levels in 37 patients aged 62±10.2 years who underwent single or multilevel LLIF for degenerative spinal conditions were selected. Their preoperative and postoperative follow-up radiographs were used to measure the anterior disc height (ADH), posterior disc height (PDH), mean disc height (MDH), disc space angle (DSA), and segmental angle. Correlations between the loss of disc height and several factors, including age, construct length, preoperative lordosis, postoperative lordosis, disc height, cage dimensions, and cage position, were analyzed. Results: We found that the lateral interbody cages significantly increased ADH, PDH, MDH, and DSA after surgery (p
Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research

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AbstractPurposeTo investigate GAP scores in an asymptomatic cohort of adults, including older adults with age-expected changes in spinal alignment.MethodsOne hundred and twenty asymptomatic volunteers underwent full-body radiographic scans. Demographics and sagittal radiographic parameters (pelvic incidence, sacral slope, L1-S1 lordosis, L4-S1 lordosis, and global tilt) were measured and GAP scores calculated (www.gapcalculator.com). Mann –WhitneyU test compared groups.ResultsEighty-five individuals (65 female, average age 48  ± 16 years, BMI 27 ± 6 kg/cm2) were analyzed...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
CONCLUSIONS: This predictive model formula for calculating the potential postoperative height gain after surgical treatment can be used preoperatively to inform idiopathic scoliosis patients of what outcomes they may expect from posterior spinal instrumentation and fusion (taking into account the model's uncertainty). PMID: 32470942 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery.Spine - Category: Neurosurgery Authors: Tags: J Neurosurg Spine Source Type: research
AbstractIntroductionThe lateral lumbar interbody fusion (LLIF) is a safe and effective technique to treat a vast range of lumbar disorders. However, the technique is also burdened by some problems. A new approach to the lateral lumbar interbody fusion was devised to solve or reduce some of the problems regarding the lateral approach. Its principal difference from the standard LLIF relies on positioning the patient in a prone decubitus, which might lead to an increase in the intradiscal lordosis.MethodsA retrospective, multicentric, non-randomized study to evaluate segmental and regional lordosis following prone transpsoas ...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Authors: Kobayashi K, Ando K, Nakashima H, Machino M, Morozumi M, Kanbara S, Ito S, Inoue T, Yamaguchi H, Mishima K, Ishiguro N, Imagama S Abstract Study Design: Single-center retrospective study in pediatric patients. Purpose: The purpose of the study was to investigate the effects of the presence and severity of leg-length discrepancy (LLD) on scoliosis in children. Overview of Literature: LLD is a common orthopedic problem that can result in standing imbalance, low back pain, and stress fractures. It may cause structural changes in the spine over time, but the exact effect of LLD on scoliosis is unknown....
Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research
This study aimed to evaluate the improvement and maintenance of cervical lordosis and sagittal alignment after VBSO. METHODS: A total of 65 patients were included; 34 patients had undergone VBSO, and 31 had undergone anterior cervical corpectomy and fusion (ACCF). Preoperative, postoperative, and final follow-up radiographs were used to evaluate the improvements in cervical lordosis and sagittal alignment after VBSO. C0-2 lordosis, C2-7 lordosis, segmental lordosis, C2-7 sagittal vertical axis (SVA), T1 slope, thoracic kyphosis, lumbar lordosis, sacral slope, pelvic tilt, and Japanese Orthopaedic Association scores we...
Source: Journal of Neurosurgery.Spine - Category: Neurosurgery Authors: Tags: J Neurosurg Spine Source Type: research
Conclusion. The procedure showed favorable initial stability and maintained favorable clinical outcomes in patients with CP. More than 90% of the patients showed disc degeneration on either side. The rate of proximal adjacent segment degeneration was higher than that of distal segments with or without symptoms at the>10-year follow-up. Level of Evidence: 4
Source: Spine - Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research
ConclusionWe found a lower HRQOL in adult patients with SK 39  years after diagnosis regarding SRS-22r domains pain and self-image, and a tendency toward lower overall HRQOL compared with a background population. The location of the SK apex did not seem to have an overall impact on HRQOL. There was no difference in pelvic parameters in the two groups and no d ifference in pulmonary function.Graphic abstractThese slides can be retrieved under Electronic Supplementary Material.
Source: European Spine Journal - Category: Orthopaedics Source Type: research
ConclusionsThe annual incidence of AVF in a general population with prevalent VF was 6.1%/year. In addition, lower BMD at the femoral neck and PI-LL> 20 ° were risk factors for AVF.
Source: Archives of Orthopaedic and Trauma Surgery - Category: Orthopaedics Source Type: research
ConclusionCurve progression can be predicted by the underlying vertebral abnormalities. However, it cannot predict cord and other organ-system anomalies. Thus, all patients with congenital scoliosis must undergo MRI of the spine, electro- and echocardiography and ultrasonography of the abdomen to detect occult abnormalities and optimize the patient prior to deformity correction.
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Conclusions: Prophylactic neurosurgery may be beneficial for decreasing the risk of correction surgery in SMS patients with large syrinx (S/C ratio >0.7). After the intervention of syrinx prior to scoliosis correction, SMS patients with large syrinx could obtain similar clinical and radiographic outcomes of treatment with pedicle-screw-based spinal instrumentation and fusion compared to the patients with small syrinx.
Source: Neurology India - Category: Neurology Authors: Source Type: research
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