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European Spine Journal : Official... Mar 2017Anterior release for Scheuermann's disease was considered an important technique for decades. However, posterior-only surgery for Scheuermann's disease has shown a... (Meta-Analysis)
Meta-Analysis Review
PURPOSE
Anterior release for Scheuermann's disease was considered an important technique for decades. However, posterior-only surgery for Scheuermann's disease has shown a promising potential to manage this deformity, as well. Correction loss could happen post-operatively, especially when posterior-only surgery is performed in the early days. Therefore, a dispute regarding anterior release for Scheuermann's disease exists.
METHODS
We performed a systematic review of studies, reporting the outcomes of anterior release and posterior fusion surgery (AP group) or posterior-only surgery (PO group) for Scheuermann's disease. Data pooling and a meta-analysis with a random-effects model were performed to evaluate the results.
RESULTS
Twenty-three studies met the inclusion criteria. The pooled correction loss of Cobb angle for the AP group was 4.1(3.4, 4.8), and for the PO group, it was 3.8(3.3, 4.4). The overall effects of blood loss, surgery time, proximal junctional kyphosis (PJK), distal junctional kyphosis (DJK), self-image improvement, pain relief, and return-to-surgery were compared between the two groups.
CONCLUSIONS
A systematic review of the outcomes of Scheuermann's disease demonstrated a very similar correction loss for the AP group and the PO group. A meta-regression supported that correction loss did decrease as time moved on for the PO procedure, which could be explained by the improvements to instrumentation and techniques. For other outcomes, the PO group showed advantages in blood loss, surgery time, and junctional kyphosis. Similar outcomes were observed in relation to aspects of cosmetic improvement and pain relief for the AP and PO groups. The revision rate was mildly lower in the PO group than in the AP group.
Topics: Blood Loss, Surgical; Humans; Operative Time; Scheuermann Disease; Spinal Fusion; Treatment Outcome
PubMed: 27384777
DOI: 10.1007/s00586-016-4632-z -
Orthopedic Reviews Sep 2015To investigate and monitor the progression of scoliosis and other spinal deformities in patients following idiopathic scoliosis (IS), non-invasive and radiation-free... (Review)
Review
To investigate and monitor the progression of scoliosis and other spinal deformities in patients following idiopathic scoliosis (IS), non-invasive and radiation-free techniques are recommended because of the need for repeated radiographs. In a clinical setting, spine parameters can be quickly, cheaply and easily assessed using rasterstereography (RS). To assess the validity of the radiation-free technique RS based on surface topography compared with radiographs. MEDLINE, the Cochrane Library and EMBASE were systematically searched for studies which investigate the validity of rasterstereography compared with x-ray measurements. Studies published between January 1, 1990 and July 31, 2013 in English, German and French were included. Studies dealing with magnetic resonance imaging were excluded. Twelve studies with 570 patients were included; these articles were published between 1990 and 2013. The majority of studies investigated patients with IS, but other spinal pathologies included were thoracic hyperkyphosis and Scheuermann's disease. With regard to the quality assessment criteria for the included studies, three out of twelve studies were evaluated using a twelve point scale and two used a scale with eleven points. We conclude that RS facilitates clinical practice by analysing the spinal column. It is completely radiation-free and could help to monitor scoliosis progression.
PubMed: 26605027
DOI: 10.4081/or.2015.5899 -
Journal of the American Heart... Dec 2023Cerebral small vessel disease (cSVD) is a major contributing factor to ischemic stroke and dementia. However, the vascular pathologies of cSVD remain inconclusive. The... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Cerebral small vessel disease (cSVD) is a major contributing factor to ischemic stroke and dementia. However, the vascular pathologies of cSVD remain inconclusive. The aim of this systematic review and meta-analysis was to characterize the associations between cSVD and cerebrovascular reactivity (CVR), cerebral autoregulation, and arterial stiffness (AS).
METHODS AND RESULTS
MEDLINE, Web of Science, and Embase were searched from inception to September 2023 for studies reporting CVR, cerebral autoregulation, or AS in relation to radiological markers of cSVD. Data were extracted in predefined tables, reviewed, and meta-analyses performed using inverse-variance random effects models to determine pooled odds ratios (ORs). A total of 1611 studies were identified; 142 were included in the systematic review, of which 60 had data available for meta-analyses. Systematic review revealed that CVR, cerebral autoregulation, and AS were consistently associated with cSVD (80.4%, 78.6%, and 85.4% of studies, respectively). Meta-analysis in 7 studies (536 participants, 32.9% women) revealed a borderline association between impaired CVR and cSVD (OR, 2.26 [95% CI, 0.99-5.14]; =0.05). In 37 studies (27 952 participants, 53.0% women) increased AS, per SD, was associated with cSVD (OR, 1.24 [95% CI, 1.15-1.33]; <0.01). Meta-regression adjusted for comorbidities accounted for one-third of the AS model variance (=29.4%, =0.02). Subgroup analysis of AS studies demonstrated an association with white matter hyperintensities (OR, 1.42 [95% CI, 1.18-1.70]; <0.01).
CONCLUSIONS
The collective findings of the present systematic review and meta-analyses suggest an association between cSVD and impaired CVR and elevated AS. However, longitudinal investigations into vascular stiffness and regulatory function as possible risk factors for cSVD remain warranted.
Topics: Humans; Female; Male; Vascular Stiffness; Cerebral Small Vessel Diseases; Risk Factors; Magnetic Resonance Imaging
PubMed: 37930079
DOI: 10.1161/JAHA.123.032616 -
Veterinary Surgery : VS Jan 2021To evaluate the evidence for the conservative and surgical management of pericardial effusions for neoplastic and idiopathic etiologies in dogs.
OBJECTIVE
To evaluate the evidence for the conservative and surgical management of pericardial effusions for neoplastic and idiopathic etiologies in dogs.
STUDY DESIGN
Systematic review.
SAMPLE POPULATION
Peer-reviewed English-language articles describing the treatment and outcome of naturally occurring pericardial effusion in domestic dogs.
METHODS
A literature search was performed with PubMed, Cab Abstracts, Scopus, and Agricola in August 2019 for articles describing pericardial effusion treatment in dogs. Inclusion criteria were applied, and articles were evaluated for reported outcome and level of evidence by using The Oxford 2011 Levels of Evidence, a previously described hierarchical system, and GRADE (Grading of Recommendations, Assessment, Development and Evaluation).
RESULTS
One hundred eight of the 641 unique articles that were identified and evaluated met inclusion criteria. Most articles included were case studies (68.2%) or retrospective case series (25.2%), with all articles providing a low level of evidence. The articles had inconsistent inclusion criteria, outcome measures, and follow-up, making comparison of outcomes difficult.
CONCLUSION
Because of the low quality of evidence of the studies included in this systematic review and the variability of the outcomes, there is not sufficient evidence to recommend one treatment option rather than another.
CLINICAL SIGNIFICANCE
There is a requirement for higher quality evidence such as randomized controlled trials and prospective comparative cohort studies. Standardization of outcome measures reported for each treatment option and disease process studied will allow for better comparison of outcomes between studies.
Topics: Animals; Dog Diseases; Dogs; Pericardial Effusion
PubMed: 32678497
DOI: 10.1111/vsu.13475 -
Journal of Neurosurgery. Spine Dec 2020Combined anterior-posterior (AP) surgery is considered the gold standard for surgical treatment of Scheuermann kyphosis. There are trends toward posterior-only (PO)... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Combined anterior-posterior (AP) surgery is considered the gold standard for surgical treatment of Scheuermann kyphosis. There are trends toward posterior-only (PO) surgery for correcting this deformity because of the availability of multisegmental compression instruments and posterior shortening osteotomy. To date, surgical strategies for Scheuermann kyphosis remain controversial. The purpose of this study was to compare various surgical approaches for the treatment of Scheuermann kyphosis, including radiological correction and intraoperative outcomes, using a systematic review and meta-analysis.
METHODS
A comprehensive database search of PubMed, EMBASE, Web of Science, and Cochrane Library was performed to identify studies concerning Scheuermann kyphosis. The inclusion criteria were direct comparisons between AP and PO surgeries for Scheuermann kyphosis and assessment of the angle of thoracic kyphosis preoperatively and postoperatively. The authors used the principles of a cumulative meta-analysis by updating the pooled estimate of the treatment effect.
RESULTS
Data from 13 studies involving 1147 participants (542 patients in the AP group and 605 patients in the PO group) were included. The average age was 18.2 years for the AP and 17.9 years for the PO group. The overall mean difference of changes in thoracic kyphosis angles between the AP and PO surgeries was 0.23° (95% CI -2.24° to 2.71°). In studies in which posterior shortening osteotomies were not performed, PO surgery resulted in a significantly low degree of correction of thoracic kyphosis, with a mean difference of 5.59° (95% CI 0.34°-10.83°). Studies in which osteotomies were performed revealed that the angle of correction for PO surgery was comparable to that of AP surgery. Regardless of fixation methods, PO surgical approaches achieved comparable angles.
CONCLUSIONS
PO surgery using posterior osteotomies can achieve correction of Scheuermann kyphosis as successfully as AP surgery does. Reflecting the advancement of surgical technology, large prospective studies are necessary to identify the proper treatments for Scheuermann kyphosis.
Topics: Humans; Kyphosis; Osteotomy; Scheuermann Disease; Spinal Fusion; Thoracic Vertebrae; Treatment Outcome
PubMed: 33361485
DOI: 10.3171/2020.7.SPINE201062 -
Clinical Spine Surgery Oct 2019This study was a systematic review and meta-analysis. (Meta-Analysis)
Meta-Analysis
Comparison Between Stable Sagittal Vertebra and First Lordotic Vertebra Instrumentation for Prevention of Distal Junctional Kyphosis in Scheuermann Disease: Systematic Review and Meta-analysis.
STUDY DESIGN
This study was a systematic review and meta-analysis.
OBJECTIVES
To compare stable sagittal vertebra (SSV) and first lordotic vertebra (FLV) instrumentation for prevention of distal junctional kyphosis (DJK) in Scheuermann disease.
SUMMARY OF BACKGROUND DATA
The SSV has been increasingly chosen as the lowest instrumented vertebra to prevent DJK, and some studies have provided supportive results. However, other studies demonstrate that lowest instrumented vertebra located in the FLV has similar DJK incidence with the benefit of saving levels.
MATERIALS AND METHODS
Electronic searches of PubMed, Embase, the Cochrane Database, and Web of Science were performed. Radiographic parameters, incidence of DJK, and revision surgery rates were compared between SSV and FLV groups. The odds ratio (OR) was used to identify differences between the groups and P<0.05 was considered statistically significant.
RESULTS
Four studies with a total of 173 patients were included. There were no differences between the SSV and FLV groups in most radiographic parameters. The incidence of DJK among 173 patients was 20.8% (36/173). The SSV group demonstrated a significantly lower DJK rate than the FLV group (OR, 0.11; 95% confidence interval, 0.04-0.30; P<0.0001; I=39%). In this study, 5.9% (5/85) of the SSV group and 43.6% (24/55) of the FLV group developed DJK; 27.8% (10/36) who developed DJK underwent revision surgery, including 25.0% (6/24) in the FLV group and 40.0% (2/5) in the SSV group. The revision surgery rate was lower in the FLV group than in the SSV group, with no statistical difference (OR, 3.27; 95% confidence interval, 0.26-41.73; P=0.36; I=0%).
CONCLUSIONS
The overall DJK rate in Scheuermann disease was 20.8%, and 27.8% of DJK patients needed revision surgery. A distal fusion level including the SSV demonstrated a significantly lower DJK rate.
Topics: Humans; Kyphosis; Scheuermann Disease; Spinal Fusion; Treatment Outcome
PubMed: 30762837
DOI: 10.1097/BSD.0000000000000792 -
Journal of Neurosurgery. Spine Nov 2019Scheuermann kyphosis (SK) is an idiopathic kyphosis characterized by anterior wedging of ≥ 5° at 3 contiguous vertebrae managed with either nonoperative or operative...
OBJECTIVE
Scheuermann kyphosis (SK) is an idiopathic kyphosis characterized by anterior wedging of ≥ 5° at 3 contiguous vertebrae managed with either nonoperative or operative treatment. Nonoperative treatment typically employs bracing, while operative treatment is performed with either a combined anterior-posterior fusion or posterior-only approach. Current evidence for these approaches has largely been derived from retrospective case series or focused reviews. Consequently, no consensus exists regarding optimal management strategies for patients afflicted with this condition. In this study, the authors systematically review the literature on SK with respect to indications for treatment, complications of treatment, differences in correction and loss of correction, and changes in treatment over time.
METHODS
Using PubMed, Embase, CINAHL, Web of Science, and the Cochrane Library, all full-text publications on the operative and nonoperative treatment for SK in the peer-reviewed English-language literature between 1950 and 2017 were screened. Inclusion criteria involved fully published, peer-reviewed, retrospective or prospective studies of the primary medical literature. Studies were excluded if they did not provide clinical outcomes and statistics specific to SK, described fewer than 2 patients, or discussed results in nonhuman models. Variables extracted included treatment indications and methodology, maximum pretreatment kyphosis, immediate posttreatment kyphosis, kyphosis at last follow-up, year of treatment, and complications of treatment.
RESULTS
Of 659 unique studies, 45 met our inclusion criteria, covering 1829 unique patients. Indications for intervention were pain, deformity, failure of nonoperative treatment, and neural impairment. Among operatively treated patients, the most common complications were hardware failure and proximal or distal junctional kyphosis. Combined anterior-posterior procedures were additionally associated with neural, pulmonary, and cardiovascular complications. Posterior-only approaches offered superior correction compared to combined anterior-posterior fusion; both groups provided greater correction than bracing. Loss of correction was similar across operative approaches, and all were superior to bracing. Cross-sectional analysis suggested that surgeons have shifted from anterior-posterior to posterior-only approaches over the past two decades.
CONCLUSIONS
The data indicate that for patients with SK, surgery affords superior correction and maintenance of correction relative to bracing. Posterior-only fusion may provide greater correction and similar loss of correction compared to anterior-posterior approaches along with a smaller complication profile. This posterior-only approach has concomitantly gained popularity over the combined anterior-posterior approach in recent years.
Topics: Adult; Female; Humans; Kyphosis; Lordosis; Lumbar Vertebrae; Male; Postoperative Complications; Scheuermann Disease; Thoracic Vertebrae
PubMed: 31675699
DOI: 10.3171/2019.8.SPINE19500 -
Evidence-based Spine-care Journal Oct 2014Study Design Systematic review. Clinical Question What is the prevalence of incidental magnetic resonance imaging (MRI) findings of the spine in asymptomatic... (Review)
Review
Study Design Systematic review. Clinical Question What is the prevalence of incidental magnetic resonance imaging (MRI) findings of the spine in asymptomatic pediatric patients? Methods Electronic databases and reference lists of key articles were searched up to December 15, 2013, to identify studies reporting the incidence or prevalence of incidental findings on MRI in asymptomatic pediatric patients. Athletes or children with a known history of trauma, infection, or congenital abnormalities were excluded. Results Seven publications, one prospective cohort, and six cross-sectional studies met the inclusion criteria. The most commonly reported findings on MRI were disc-related and included degenerative disc disease (seven studies, prevalence 19.6%), disc herniation/protrusion (four studies, 2.9%), disc height/narrowed disc space (two studies, 33.7%), and endplate changes (two studies, 5.3%). Other disc-related findings, reported by one study each, included bulging disc, abnormal nucleus shape, annular tear, high intensity zone, and nerve root compression, with prevalences ranging from 4.5 to 51.6%. Spondylolisthesis and spondylolysis were reported by one study each with a prevalence of 2.3 and 0%, respectively. Other findings reported included tumors and infections (one study, 0% for both) and Scheuermann-type changes (one study, 7.7%). Conclusions The prevalence of positive MRI findings in the asymptomatic pediatric population is higher than previously assumed, particularly in regard to disc morphology, highlighting the importance of correlating the history and physical examination to the MRI findings to avoid misdiagnosis or over-treatment in the pediatric population.
PubMed: 25278883
DOI: 10.1055/s-0034-1386753 -
European Spine Journal : Official... Jul 2019Several reports in the literature have suggested a causative association between oral occlusion and spinal deformity such as scoliosis and Scheuermann's disease or...
BACKGROUND
Several reports in the literature have suggested a causative association between oral occlusion and spinal deformity such as scoliosis and Scheuermann's disease or kyphosis. Based on these findings, a growing number of adolescents with spinal deformity receive orthodontic treatment, supposing a beneficial effect on the spine.
OBJECTIVE
The aim of this study was to verify the association between spinal deformity and malocclusion in the orthopedic population and potential effect of orthodontic treatment on the spinal deformity.
METHOD
The databases: MEDLINE, CINAHL, EMBASE, Cochrane Register, OTseeker and ScienceDirect were searched up to August 2017 for studies reporting on associations between spinal and occlusal conditions. Case series, cohort, case-control studies and randomized clinical trials were considered for analysis. Two reviewers independently selected studies, conducted quality assessment and extracted results. Methodological quality was assessed using MINORS score.
RESULTS
Nine publications reporting on 1424 patients were included. Studies were two case series, five case-control studies, one cohort study and one randomized clinical trial. The methodological quality was poor in 8/9 studies.
CONCLUSION
Evidence from three low-quality studies suggests an increased prevalence of occlusal dysfunction in patients with known spinal deformity, but the conclusions have a high risk of bias. No evidence of beneficial effects of orthodontic treatment on spinal deformity was found. These slides can be retrieved under Electronic Supplementary Material.
Topics: Adolescent; Humans; Kyphosis; Malocclusion; Orthodontics, Corrective; Scheuermann Disease; Scoliosis; Treatment Outcome
PubMed: 30673874
DOI: 10.1007/s00586-019-05896-4