| 1. |
|
|
| 2. |
- Ogura, Y, et al.
(författare)
-
An international meta-analysis confirms the association of BNC2 with adolescent idiopathic scoliosis
- 2018
-
Ingår i: Scientific reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 8:1, s. 4730-
-
Tidskriftsartikel (refereegranskat)abstract
- Adolescent idiopathic scoliosis (AIS) is a common spinal deformity with the prevalence of approximately 3%. We previously conducted a genome-wide association study (GWAS) using a Japanese cohort and identified a novel locus on chromosome 9p22.2. However, a replication study using multi-population cohorts has not been conducted. To confirm the association of 9p22.2 locus with AIS in multi-ethnic populations, we conducted international meta-analysis using eight cohorts. In total, we analyzed 8,756 cases and 27,822 controls. The analysis showed a convincing evidence of association between rs3904778 and AIS. Seven out of eight cohorts had significant P value, and remaining one cohort also had the same trend as the seven. The combined P was 3.28 × 10−18 (odds ratio = 1.19, 95% confidence interval = 1.14–1.24). In silico analyses suggested that BNC2 is the AIS susceptibility gene in this locus.
|
|
| 3. |
- Diarbakerli, E., et al.
(författare)
-
Adults With Idiopathic Scoliosis Diagnosed at Youth Experience Similar Physical Activity and Fracture Rate as Controls
- 2017
-
Ingår i: Spine. - : Ovid Technologies (Wolters Kluwer Health). - 0362-2436 .- 1528-1159. ; 42:7, s. E404-E410
-
Tidskriftsartikel (refereegranskat)abstract
- Study Design. Cross-sectional. Objective. To describe physical activity level and fracture rates in adults with idiopathic scoliosis, diagnosed before maturity, and to compare with a control group. Summary of Background Data. A previous study found a lower level of sporting activities in adults treated for idiopathic scoliosis compared with controls. Other studies have shown a lower bone mass in adults with idiopathic scoliosis compared with controls. Methods. One thousand two hundred seventy-eight adults (aged 18-71 yr) with idiopathic scoliosis and 214 controls (aged 18-70 yr) were included and answered the International Physical Activity Questionnaire - Short Form (IPAQ-SF) and questions about previous fractures. The three scoliosis treatment groups (untreated n=360, brace n=460, and surgically treated n=458) were compared. Furthermore, a comparison based on onset (juvenile n=169 or adolescent n=976) was performed. Achieved weekly moderate activity level and metabolic equivalent task (MET) minutes/week were assessed for patients and controls. Statistical comparisons were made with analysis of covariance with adjustments for age, body mass index, and sex. Results. The proportion achieving weekly moderate activity level was 962 out of 1278 for individuals with idiopathic scoliosis (75%) and 157 out of 214 (73%) for controls (P=0.40). The scoliosis patients reported 2016MET-minutes/week (median value) and the controls 2456 (P=0.06). Fracture rates did not differ (P=0.72). Fewer surgically treated individuals achieved moderate activity level (P=0.046) compared with the untreated and the previously braced individuals. No difference was seen regarding MET-minutes/week (P=0.86). No differences were seen between individuals with a juvenile onset compared with individuals with an adolescent onset (all P >= 0.05). Conclusion. Adults with idiopathic scoliosis have similar physical activity level and do not sustain more fractures compared with controls. Adults with surgically treated idiopathic scoliosis have slightly lower physical activity level than previously braced and untreated patients. Onset of idiopathic scoliosis does not affect physical activity level.
|
|
| 4. |
- Diarbakerli, E., et al.
(författare)
-
Health-Related Quality of Life in Adulthood in Untreated and Treated Individuals with Adolescent or Juvenile Idiopathic Scoliosis
- 2018
-
Ingår i: Journal of Bone and Joint Surgery-American Volume. - : Ovid Technologies (Wolters Kluwer Health). - 0021-9355 .- 1535-1386. ; 100:10, s. 811-817
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Health-related quality of life in adults with idiopathic scoliosis diagnosed before maturity has been reported to be similar between brace-treated and surgically treated individuals. The aim of this study was to compare health-related quality of life in untreated, brace-treated, and surgically treated adults with idiopathic scoliosis diagnosed before skeletal maturity. Subgroup analyses were performed on the basis of age at the time of the study, age of onset, surgical characteristics, and curve magnitude. Methods: We included 1,187 adults with juvenile or adolescent idiopathic scoliosis with a mean age (and standard deviation) of 38.8 +/- 12.7 years. Of these, 347 were untreated, 459 had been brace-treated, and 381 had been surgically treated. The Scoliosis Research Society-22r (SRS-22r) and EuroQol 5-Dimensions (EQ-5D) were used. Statistical analyses were performed using analysis of covariance. Results: The mean SRS-22r subscore was 4.15 +/- 0.59 points for the untreated group, 4.10 +/- 0.57 points for the previously braced group, and 4.01 +/- 0.64 points for the surgically treated group (p = 0.007 adjusted for age and sex). The EQ-5D index was 0.82 +/- 0.20 for the untreated group, 0.82 +/- 0.20 for the previously brace-treated group, and 0.79 +/- 0.24 for the surgically treated group (p = 0.026, adjusted for age and sex). Brace cessation was at the mean age of 16.2 +/- 1.5 years, and the surgical procedure had been performed at the mean age of 15.3 +/- 2.1 years. A more caudal fusion was associated with a lower SRS-22r subscore and EQ-5D index. No differences were observed when comparing individuals with juvenile or adolescent onset scoliosis (all p > 0.05). Conclusions: Untreated adults with idiopathic scoliosis had similar health-related quality of life to previously brace-treated individuals, and they had marginally higher health-related quality of life compared with surgically treated individuals. Therefore, both surgical and brace treatments for idiopathic scoliosis could be considered successful from a health-related quality-of-life point of view in adulthood. The age of onset of idiopathic scoliosis does not seem to influence quality of life in adulthood.
|
|
| 5. |
- Gerdhem, P., et al.
(författare)
-
Serum level of cartilage oligomeric matrix protein is lower in children with idiopathic scoliosis than in non-scoliotic controls
- 2015
-
Ingår i: European Spine Journal. - : Springer Science and Business Media LLC. - 0940-6719 .- 1432-0932. ; 24:2, s. 256-261
-
Tidskriftsartikel (refereegranskat)abstract
- The etiology of idiopathic scoliosis remains unknown, but growth is a risk factor for progression. Growth pattern differs in children with and without scoliosis. Cartilage oligomeric matrix protein (COMP) may be associated with scoliosis and growth. We, therefore, studied COMP in children with and without idiopathic scoliosis. We included 105 children, with mean age 14.4 years (range 10-16), under observation or treatment for idiopathic scoliosis, and 103 children from an age-matched population-based cohort. COMP was measured in serum at the time of inclusion. Growth velocity was estimated from repeated height measurements. T tests, analysis of covariance or linear regression were used for statistical comparisons. COMP was mean (SD) 11 (5) units/liter (U/L) in children with scoliosis and 13 (5) U/L in the control cohort (p = 0.005, adjusted for sex and sampling time of the day). When patients and controls were analyzed together, high COMP was correlated with high growth velocity (beta = 0.19, p = 0.003). When patients and controls were analyzed separately, COMP was correlated with growth velocity in children with scoliosis (beta = 0.27, p = 0.007), but not in children without scoliosis (beta = 0.02, p = 0.83) (all analyses adjusted for age, sex and sampling time). Low COMP was significantly correlated with large curve size in children with scoliosis (beta = -0.29, p = 0.003), but not after adjustment for age, sex and sampling time (beta = -0.16; p = 0.14). COMP was lower in children with idiopathic scoliosis than in a control cohort. In children with scoliosis, high COMP was modestly correlated with high growth velocity, but not with curve severity.
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
- Strömqvist, Fredrik, et al.
(författare)
-
Outcome of surgical treatment of lumbar disc herniation in young individuals.
- 2015
-
Ingår i: The Bone & Joint Journal. - 2049-4408. ; 97B:12, s. 1675-1682
-
Tidskriftsartikel (refereegranskat)abstract
- Lumbar disc herniation (LDH) is uncommon in youth and few cases are treated surgically. Very few outcome studies exist for LDH surgery in this age group. Our aim was to explore differences in gender in pre-operative level of disability and outcome of surgery for LDH in patients aged ≤ 20 years using prospectively collected data. From the national Swedish SweSpine register we identified 180 patients with one-year and 108 with two-year follow-up data ≤ 20 years of age, who between the years 2000 and 2010 had a primary operation for LDH. Both male and female patients reported pronounced impairment before the operation in all patient reported outcome measures, with female patients experiencing significantly greater back pain, having greater analgesic requirements and reporting significantly inferior scores in EuroQol (EQ-5D-index), EQ-visual analogue scale, most aspects of Short Form-36 and Oswestry Disabilities Index, when compared with male patients. Surgery conferred a statistically significant improvement in all registered parameters, with few gender discrepancies. Quality of life at one year following surgery normalised in both males and females and only eight patients (4.5%) were dissatisfied with the outcome. Virtually all parameters were stable between the one- and two-year follow-up examination. LDH surgery leads to normal health and a favourable outcome in both male and female patients aged 20 years or younger, who failed to recover after non-operative management. Cite this article: Bone Joint J 2015;97-B:1675-82.
|
|
| 9. |
- Wihlborg, A., et al.
(författare)
-
Fracture predictive ability of physical performance tests and history of falls in elderly women: a 10-year prospective study
- 2015
-
Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 1433-2965 .- 0937-941X. ; 26:8, s. 2101-2109
-
Tidskriftsartikel (refereegranskat)abstract
- A Summary In a large cohort of elderly women followed for 10 years, we found that balance, gait speed, and self-reported history of fall independently predicted fracture. These clinical risk factors are easily evaluated and therefore advantageous in a clinical setting. They would improve fracture risk assessment and thereby also fracture prevention. Introduction The aim of this study was to identify additional risk factors for osteoporosis-related fracture by investigating the fracture predictive ability of physical performance tests and self-reported history of falls. Methods In the population-based Osteoporosis Prospective Risk Assessment study (OPRA), 1044 women were recruited at the age of 75 and followed for 10 years. At inclusion, knee extension force, standing balance, gait speed, and bone mineral density (BMD) were examined. Falls the year before investigation was assessed by questionnaire. Cox proportional hazards regression analysis was used to determine fracture hazard ratios (HR) with BMD, history of fracture, BMI, smoking habits, bisphosphonate, vitamin D, glucocorticoid, and alcohol use as covariates. Continuous variables were standardized and HR shown for each standard deviation change. Results Of all women, 427 (41 %) sustained at least one fracture during the 10-year follow-up. Failing the balance test had an HR of 1.98 (1.18-3.32) for hip fracture. Each standard deviation decrease in gait speed was associated with an HR of 1.37 (1.14-1.64) for hip fracture. Previous fall had an HR of 1.30 (1.03-1.65) for any fracture; 1.39 (1.08-1.79) for any osteoporosis-related fracture; and 1.60 (1.03-2.48) for distal forearm fracture. Knee extension force did not show fracture predictability. Conclusion The balance test, gait speed test, and self-reported history of fall all hold independent fracture predictability. Consideration of these clinical risk factors for fracture would improve the fracture risk assessment and subsequently also fracture prevention.
|
|
