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Smith-Petersen osteotomy combined with anterior debridement and allografting for active thoracic and lumbar spinal tuberculosis with kyphotic deformity in young children: A prospective study and literature review.

ABSTRACT: The purpose of this study is to determine the efficacy and safety of Smith-Petersen osteotomy combined with anterior debridement and allogenic strut bone grafting for the treatment of active thoracic and lumbar spinal tuberculosis with kyphotic deformity in young children.Spinal tuberculosis is more destructive in young children and often causes severe kyphosis and paraplegia. Despite much progress has been made, surgical treatment is still controversial and technically challenging.From October 2010 to August 2014, 25 children (11 males, 14 females; aged under 6 years) with active thoracic and lumbar spinal tuberculosis treated by Smith-Petersen osteotomy combined with anterior debridement and allogenic strut bone grafting were enrolled in this study. The pre- and postoperative data, follow-up medical records, imaging studies, and laboratory data were collected prospectively. Clinical outcomes were evaluated on the basis of kyphotic angle and the Frankel motor score system. The changes in C-reactive protein (CRP) levels, erythrocyte sedimentation rate (ESR), clinical symptoms, and complications were investigated. Graft fusion was evaluated using the Bridwell grading criteria.The mean age was 3.5 ± 1.76 years (range, 1-6 years). All patients were followed up for 25 to 45 months (average, 34.3 ± 5.86 months). The average kyphotic angle was changed significantly from a preoperative value of 44.1 ± 10.8° to a postoperative value of 11.4 ± 3.9°, with an average correction rate of 74% (P < .05). According to the Frankle motor score system, neurological deficits were significantly improved by the time of the last follow-up, with an average improvement of 1.7 grades (P < .05). There were 2 cases of rod breakage and 1 case of graft bone displacement. No patients experienced a recurrence of tuberculosis. According to Bridwell criteria, the degree of fusion was grade I in 23 patients and grade II in 2 patients with a fusion rate of 92%.For young children with active thoracic and lumbar spinal tuberculosis, Smith-Petersen osteotomy combined with anterior debridement and allogenic strut bone grafting is a safe and simple procedure to achieve sufficient kyphosis correction, good neurological recovery, and reliable anterior column reconstruction.

SUBMITTER: Abulizi Y

PROVIDER: S-EPMC5556209 | biostudies-other | 2017 Aug

REPOSITORIES: biostudies-other

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Project description:Study designA post hoc analysis.ObjectiveAdvances in machine learning (ML) have led to tools offering individualized outcome predictions for adult spinal deformity (ASD). Our objective is to examine the properties of these ASD models in a cohort of adult symptomatic lumbar scoliosis (ASLS) patients.Summary of background dataML algorithms produce patient-specific probabilities of outcomes, including major complication (MC), reoperation (RO), and readmission (RA) in ASD. External validation of these models is needed.MethodsThirty-nine predictive factors (12 demographic, 9 radiographic, 4 health-related quality of life, 14 surgical) were retrieved and entered into web-based prediction models for MC, unplanned RO, and hospital RA. Calculated probabilities were compared with actual event rates. Discrimination and calibration were analyzed using receiver operative characteristic area under the curve (where 0.5=chance, 1=perfect) and calibration curves (Brier scores, where 0.25=chance, 0=perfect). Ninety-five percent confidence intervals are reported.ResultsA total of 169 of 187 (90%) surgical patients completed 2-year follow up. The observed rate of MCs was 41.4% with model predictions ranging from 13% to 68% (mean: 38.7%). RO was 20.7% with model predictions ranging from 9% to 54% (mean: 30.1%). Hospital RA was 17.2% with model predictions ranging from 13% to 50% (mean: 28.5%). Model classification for all three outcome measures was better than chance for all [area under the curve=MC 0.6 (0.5-0.7), RA 0.6 (0.5-0.7), RO 0.6 (0.5-0.7)]. Calibration was better than chance for all, though best for RA and RO (Brier Score=MC 0.22, RA 0.16, RO 0.17).ConclusionsASD prediction models for MC, RA, and RO performed better than chance in a cohort of adult lumbar scoliosis patients, though the homogeneity of ASLS affected calibration and accuracy. Optimization of models require samples with the breadth of outcomes (0%-100%), supporting the need for continued data collection as personalized prediction models may improve decision-making for the patient and surgeon alike.

Project description:Study designA systematic review and meta-analysis.ObjectiveThe purpose of this systematic review and meta-analysis was to compare the efficacy of lateral lumbar interbody fusion (LLIF) combined with posterior spinal fusion (PSF) with that of conventional PSF in the treatment of adult spinal deformity (ASD).MethodsA comprehensive literature search was performed for relevant studies in PubMed, EMBASE, Web of Science, and the Cochrane Library. Spinopelvic parameters, surgical data, complications, and clinical outcomes at the last follow-up were compared between patients with ASD who underwent LLIF combined with PSF (LLIF+PSF group) and those who underwent conventional PSF (only-PSF group).ResultsTen studies, comprising 621 patients with ASD (313 in the LLIF+PSF group and 308 in the only-PSF group), were included. The level of evidence was III for 7 studies and IV for 3 studies. There was no significant difference in the improvement in the visual analog scale score, systemic complication rate, and revision rate between groups. In the LLIF+PSF group, we noted a superior restoration of lumbar lordosis (weighted mean difference [WMD], 9.77; 95% confidence interval [CI] 7.10 to 12.44, P < .001), pelvic tilt (WMD, -2.50; 95% CI -4.25 to -.75, P = .005), sagittal vertical axis (WMD, -21.92; 95% CI -30.73 to -13.11, P < .001), and C7 plumb line-center sacral vertical line (WMD, -4.03; 95% CI -7.52 to -.54, P = .024); a lower estimated blood loss (WMD, -719.99; 95% CI -1105.02 to -334.96, P < .001) while a prolonged operating time (WMD, 104.89; 95% CI 49.36 to 160.43, P < .001); lower incidence of pseudarthrosis (risk ratio [RR], .26; 95% CI .08 to .79, P = .017) while higher incidence of neurologic deficits (RR, 2.04; 95% CI 1.27 to 3.25, P = .003); and a better improvement in Oswestry Disability Index score (WMD, -7.04; 95% CI -10.155 to -3.93, P < .001) and Scoliosis Research Society-22 total score (WMD, .27; 95% CI .11 to .42, P = .001). The level of evidence in this systematic review and meta-analysis was II.ConclusionCompared with conventional PSF, LLIF combined with PSF was associated with superior restoration of sagittal and coronal alignment, lower incidence of pseudarthrosis, better improvement in quality of life, and less surgical invasiveness in the treatment of ASD, albeit at the cost of prolonged surgical times and substantially high incidence of lower extremity symptoms. Surgeons should weigh the advantages and disadvantages of this procedure, and inform patients about its side effects.

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Smith-Petersen osteotomy combined with anterior debridement and allografting for active thoracic and lumbar spinal tuberculosis with kyphotic deformity in young children: A prospective study and literature review.

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