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Llopis-Ibor CI, Mariscal G, de la Rubia Ortí JE, Barrios C. Incidence of vitamin D deficiency in adolescent idiopathic scoliosis: a meta-analysis. Front Endocrinol (Lausanne) 2023; 14:1250118. [PMID: 37886647 PMCID: PMC10598863 DOI: 10.3389/fendo.2023.1250118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/25/2023] [Indexed: 10/28/2023] Open
Abstract
Introduction This study aimed to investigate the incidence of vitamin D deficiency in patients with adolescent idiopathic scoliosis through a meta-analysis and to analyze trends and risk factors. Methods Potentially relevant studies were searched using the terms "Vitamin D AND scoliosis." Data on the incidence and risk factors, such as race, curve magnitude, and sex, were extracted from the selected studies. Review Manager 5.4 software was used for the data analysis. Six studies with a total of 1, 428 patients met the inclusion criteria. Results The incidence of vitamin D insufficiency in patients with idiopathic scoliosis was 36.19% (95% CI [21.93 to 50.46]. In contrast, the incidence of vitamin D deficiency was 41.43% (95% CI [16.62 66.23]. Vitamin D levels were compared between Caucasian and African patients and it was concluded that Caucasian patients had a lower risk of vitamin D deficiency [RR 0.15, 95% CI (0.03 to 0.82; P = 0.03]. There was also an association between patients with idiopathic scoliosis and lower vitamin D -5.58, 95% CI [-7.10, -4.06]. Finally, no significant differences were observed in terms of curve magnitude assessed with the Cobb angle mean difference (MD) 4.45, 95% CI [-0.55, 9.44], or sex with lower-than-normal levels of vitamin D OR 0.96, 95% CI [0.58 to 1.60]. Discussion The incidence rates of vitamin D insufficiency and deficiency in patients with adolescent idiopathic scoliosis were 36.19% and 41.43%, respectively. The Caucasian race was associated with a lower risk of vitamin D deficiency compared to the African race. Vitamin D deficiency was not related to curve magnitude or sex.
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Affiliation(s)
- Clara Inés Llopis-Ibor
- Institute for Research on Musculoskeletal Disorders, Valencia Catholic University, Valencia, Spain
| | - Gonzalo Mariscal
- Institute for Research on Musculoskeletal Disorders, Valencia Catholic University, Valencia, Spain
| | | | - Carlos Barrios
- Institute for Research on Musculoskeletal Disorders, Valencia Catholic University, Valencia, Spain
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Marin AG, Pratali RDR, Marin SM, Herrero CFPDS. Age and Spinal Disease Correlate to Albumin and Vitamin D Status. Global Spine J 2022; 12:1468-1474. [PMID: 33541134 PMCID: PMC9393971 DOI: 10.1177/2192568220982561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
STUDY DESIGN Cross-sectional study. OBJECTIVES Thus, this study aimed to assess the epidemiological profile of a patient sample that underwent spinal surgery regarding their nutritional and vitamin D status. METHODS Serum albumin and vitamin D (25-hydroxyvitamin D) levels were measured in patients with different spinal surgical approaches and various pathologies at a single institution. 112 patients were retrospectively identified for inclusion and stratified by age into 4 age groups and by pathology. The nutritional status of the patients was classified in vitamin D inadequacy (< 30ng/mL), vitamin D deficiency (<20ng/mL), and hypoalbuminemia (<3.5g/dL). Data was analyzed comparing vitamin D, and albumin means considering gender, age group, and pathologies. RESULTS Twenty-eight (25.2%) patients had hypoalbuminemia. There was no difference between gender (p = 0.988); there was a significant decrease in albumin concentration increasing the age (p < 0.001). The prevalence of hypoalbuminemia was significantly higher in patients with trauma, tumor and infection than in those patients with degenerative and deformity diseases (p = 0.003). The prevalence of vitamin D inadequacy was 33.7%, and that of deficiency was 62.2%, while severe deficiency (< 10 ng/mL) in 16.3%. The vitamin D concentration was significantly different among the pathologies (P = 0.047), the lower concentration occurring in patients with tumor. CONCLUSION Older patients, as well as patients with tumor and infectious pathologies, seem to have a higher prevalence of hypoalbuminemia, inferring malnutrition. There was a low epidemic level of vitamin D concentration, almost all patients presenting some degree of hypovitaminosis D, independent of age, gender and nutritional status.
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Affiliation(s)
- Anderson Gomes Marin
- Department of Orthopedics and Anesthesiology, University of Sao Paulo, School of Medicine, Ribeirão Preto, São Paulo, Brazil
| | | | | | - Carlos Fernando Pereira da Silva Herrero
- Department of Orthopedics and Anesthesiology, University of Sao Paulo, School of Medicine, Ribeirão Preto, São Paulo, Brazil,Carlos Fernando Pereira da Silva Herrero, Bandeirantes Avenue 3900, 11 floor, Ribeirão Preto, São Paulo 14048-900, Brazil.
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The effect of nutritional status on post-operative outcomes in pediatric otolaryngology-head and neck surgery. Int J Pediatr Otorhinolaryngol 2021; 150:110875. [PMID: 34482158 DOI: 10.1016/j.ijporl.2021.110875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/26/2021] [Accepted: 08/05/2021] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Nutritional status can affect surgical patients in terms of stress response, healing time, and outcomes. Several abnormalities are known to have a high prevalence in the general population such as vitamin D deficiency (VDD) and subclinical hypothyroidism. We hypothesized that there will be elevated rates of nutritional deficiencies in preoperative patients which may adversely affect postoperative outcomes following pediatric otolaryngology surgery. METHODS IRB approval was obtained for a cross-sectional cohort study. Consecutive patients underwent nutritional evaluation when being scheduled for surgery including TSH, albumin and vitamin D. Demographic data, supplementation, and early complication rates were collected. RESULTS 125 patients were included in the final cohort with adequate demographic distribution. Based on anthropometric data, 12% of our cohort was found to be undernourished, and 40% of our cohort with elevated BMI. However, there was no relationship found between Z-scores and complications. VDD was noted in 83/125 (66.4%) patients. Our cohort had increased rates of VDD in patients with elevated BMI and African American ethnicity. Thyroid hormone abnormalities were present in 12 patients. Mean serum albumin level was 4.29 in our cohort all within normal range. We did find increased risk of postoperative complications in patients with previously diagnosed comorbidities. (p=0.006). CONCLUSION There is no current recommendation or consensus for nutritional assessment in preoperative pediatric patients. Our study did not show statistically significant correlation with z-scores, low vitamin D levels with supplementation, albumin, or TSH to postoperative complications. However, our patient cohort had higher than average rates of VDD compared to the many studies of the general pediatric population and significant negative correlation between vitamin D levels and z-scores. By early preoperative identification of VDD and supplementation with calciferol, we found no significant difference in complication rates in patients based on their initial vitamin D status. We suggest screening preoperative patients using z-score calculations and vitamin D levels based on individual patient risk factors including atrisk patient populations such as African American children, and obese children.
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Abstract
BACKGROUND This review paper aims to report on the last 5 years of relevant research on pediatric bone health in regard to nutrition and obesity, ethnic disparities, common orthopaedic conditions, trauma, spine, and sports medicine. METHODS A search of the PubMed database was completed using the following terms: bone health, Vitamin D, pediatric, adolescent, sports medicine, fractures, spine, scoliosis, race, ethnicity, obesity, Slipped Capital Femoral Epiphysis, Osteogenesis Imperfecta, Duchenne's Muscular Dystrophy, neuromuscular, and cancer. Resultant papers were reviewed by study authors and determined to be of quality and relevance for description in this review. Papers from January 1, 2015 to August 31, 2020 were included. RESULTS A total of 85 papers were selected for review. General results include 7 key findings. (1) Obesity inhibits pediatric bone health with leptin playing a major role in the process. (2) Socioeconomic and demographic disparities have shown to have a direct influence on bone health. (3) Vitamin D deficiency has been linked to an increased fracture risk and severity in children. (4) Formal vitamin D monitoring can aid with patient compliance with treatment. (5) Patients with chronic medical conditions are impacted by low vitamin D and need ongoing monitoring of their bone health to decrease their fracture risk. (6) Vitamin D deficiency in pediatrics has been correlated to low back pain, spondylolysis, and adolescent idiopathic scoliosis. Osteopenic patients with AIS have an increased risk of curve progression requiring surgery. Before spine fusion, preoperative screening for vitamin D deficiency may reduce complications of fractures, insufficient tissue repair, loosening hardware, and postoperative back pain. (7) Increasing youth sports participation has resulted in increased bone health related injuries. However, improved understanding of Relative Energy Deficiency in Sport effects on bone health has recently occurred. CONCLUSIONS Increasing awareness of bone health issues in children will improve their recognition and treatment. Further research is needed on diagnosis, treatment, outcomes, and most importantly prevention of pediatric bone health diseases.
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Affiliation(s)
| | - Susan T Mahan
- Boston Children's Hospital/Harvard Medical School, Boston, MA
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Beling A, Hresko MT, DeWitt L, Miller PE, Pitts SA, Emans JB, Hedequist DJ, Glotzbecker MP. Vitamin D levels and pain outcomes in adolescent idiopathic scoliosis patients undergoing spine fusion. Spine Deform 2021; 9:997-1004. [PMID: 33683641 DOI: 10.1007/s43390-021-00313-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 02/14/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE Prior research has indicated adolescent idiopathic scoliosis (AIS) patients have lower bone mineral density and lower vitamin D levels than healthy peers. Vitamin D deficiency has been associated with higher levels of pain. This study investigated whether vitamin D-deficient AIS patients had higher pain before or immediately after posterior spine fusion (PSF) surgery. METHODS 25-Hydroxy vitamin D levels were tested in all AIS patients at their pre-operative appointment. Patients were grouped by serum 25-hydroxy vitamin D level: deficient, < 20 ng/mL; insufficient, 20-29 ng/mL; sufficient, ≥ 30 ng/mL. Primary outcomes included pre-operative Scoliosis Research Society Health-Related Quality of Life (SRS-30) and numeric rating scale (NRS) scores (0-10) up to 72 h post-operatively, and analyzed using ANOVA and linear mixed modeling, respectively. 176 patients undergoing PSF were included. Intra-operative characteristics by vitamin D status were also assessed. The cohort was 82% female and an average of 15.2 years (range 10.6-25.3 years) at fusion. Average major curve was 60 (range 40-104) degrees pre-operatively. RESULTS Forty-five (26%) patients were deficient in vitamin D, 75 (43%) were insufficient, and 56 (32%) were sufficient. Patients with vitamin D deficiency had lower average household income by zip code (p < 0.01) and higher secondhand smoke exposure (p < 0.001). There were no differences in pre-operative SRS-30 score, pre- and post-operative major curve angles, or estimated blood loss across vitamin D groups. Trajectories of NRS indicated no differences in pain during the first 72 h after surgery. CONCLUSION Vitamin D deficiency in this population is associated with potential markers of lower socioeconomic status; however, it does not influence AIS PSF patients' experience of pain before or immediately after spine fusion surgery. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Alexandra Beling
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - M Timothy Hresko
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Leah DeWitt
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Patricia E Miller
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Sarah A Pitts
- Division of Endocrinology, Boston Children's Hospital, Boston, MA, USA
| | - John B Emans
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Daniel J Hedequist
- Department of Orthopedics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Michael P Glotzbecker
- Department of Orthopedics, University Hospitals Cleveland Medical Center, 11100 Euclid Ave, Cleveland, OH, 44106, USA.
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Impact of race on outcomes and healthcare utilization following spinal fusion for adolescent idiopathic scoliosis. Clin Neurol Neurosurg 2021; 206:106634. [PMID: 33979695 DOI: 10.1016/j.clineuro.2021.106634] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/28/2021] [Accepted: 04/04/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVES Racial disparities in spine surgery have been shown to impact surgical management and postoperative complications. However, for adolescent patients with idiopathic scoliosis (AIS) treated by posterior spinal fusion (PSF), the influence of race on postoperative outcomes remains unclear. The aim of the study was to investigate the differences in baseline patient demographics, inpatient management, and postoperative complications for adolescents with AIS undergoing elective, posterior spinal surgery (≥ 4 levels). PATIENTS AND METHODS The Kids' Inpatient Database year 2012 was queried. Adolescent patients (age 10-17 years old) with AIS undergoing elective, PSF (≥ 4 levels) were selected using the International Classification of Diseases, Ninth Revision, Clinical Modification coding system. Patients were divided into 4 cohorts: Black, White, Hispanic, and Other. Patient demographics, comorbidities, complications, length of hospital stay (LOS), discharge disposition and total cost were recorded. The primary outcome was the rate of intraoperative and postoperative complications and resource utilization after elective PSF intervention. RESULTS Patient demographics significantly differed between the four cohorts. While age was similar (p = 0.288), the White cohort had a greater proportion of female patients (White: 79.0%; Black: 72.1%; Hispanic: 78.2%; Other: 75.9%, p = 0.006), and the Black cohort had the largest proportion of patients in the 0-25th income quartile (White: 16.1%; Black: 43.3%; Hispanic: 28.0%; Other: 15.3%, p < 0.001). There were significant differences in hospital region (p < 0.001) and bed size (p < 0.001) between the cohorts, with more Hispanic adolescents being treated in the West (White: 21.9%; Black: 8.9%; Hispanic: 40.3%; Other: 29.3%) at small hospitals (White: 14.0%; Black: 13.9%; Hispanic: 16.2%; Other: 7.1%). Baseline comorbidities were similar between the cohorts. The use of blood transfusions was significantly greater in the Black cohort compared to the other racial groups (White: 16.7%; Black: 25.0%; Hispanic: 24.5%; Other: 22.7%, p < 0.001). The number of vertebral levels involved differed significantly between the cohorts (p < 0.001), with the majority of patients having 9-levels or greater involved (White: 80.9%; Black: 81.7%; Hispanic: 84.3%; Other: 67.3%). The rate of complications encountered during admission was greatest in the Other cohort (White: 21.9%; Black: 23.6%; Hispanic: 22.2%; Other: 34.9%, p < 0.001). While LOS was similar between the cohorts (p = 0.702), median total cost of admission was highest for Hispanic patients (White: $49,340 [37,908-65,078]; Black: $47,787 [37,718-64,670]; Hispanic: $54,718 [40,689-69,266]; Other: $54,110 [41,292-71,540], p < 0.001). CONCLUSIONS Our study suggests that race may not have a significant impact on surgical outcomes after elective posterior spine surgery for adolescent idiopathic scoliosis. Further studies are necessary to corroborate our findings.
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Sedra F, Shafafy R, Sadek AR, Aftab S, Montgomery A, Nadarajah R. Perioperative Optimization of Patients With Neuromuscular Disorders Undergoing Scoliosis Corrective Surgery: A Multidisciplinary Team Approach. Global Spine J 2021; 11:240-248. [PMID: 32875888 PMCID: PMC7882827 DOI: 10.1177/2192568220901692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
STUDY DESIGN Narrative review. OBJECTIVE The high rate of complications associated with the surgical management of neuromuscular spinal deformities is well documented in the literature. This is attributed to attenuated protective physiological responses in multiple organ systems. METHODS Review and synthesis of the literature pertaining to optimization of patients with neuromuscular scoliosis undergoing surgery. Our institutional practice in the perioperative assessment and management of neuromuscular scoliosis is also described along with a clinical vignette. RESULTS Respiratory complications are the most common to occur following surgery for neuromuscular disorders. Other categories include gastrointestinal, cardiac, genitourinary, blood loss, and wound complications. A multidisciplinary approach is required for perioperative optimization of these patients and numerous strategies are described, including respiratory management. CONCLUSION Perioperative optimization for patients with neuromuscular disorders undergoing corrective surgery for spinal deformity is multifaceted and complex. It requires a multidisciplinary evidence-based approach. Preadmission of patients in advance of surgery for assessment and optimization may be required in certain instances to identify key concerns and formulate a tailored treatment plan.
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Affiliation(s)
- Fady Sedra
- Royal London Hospital, Barts Health NHS Trust, London, UK,Cairo University Hospitals, Cairo, Egypt,Fady Sedra, Department of Spinal Surgery, Royal London Hospital, Barts Health NHS Trust, Whitechapel Rd, Whitechapel, London E1 1FR, UK.
| | | | | | - Syed Aftab
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | | | - Ramesh Nadarajah
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
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Yan NG S, NG YL, Cheng KP, Chan WY, Ho TK. Intervention versus Observation in Mild Idiopathic Scoliosis in Skeletally Immature Patients. Open Orthop J 2020. [DOI: 10.2174/1874325002014010186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
Introduction:
Observation is the treatment of choice for idiopathic scoliosis with Cobb angles between 15 degrees - 20 degrees in growing children. This passive approach does not address the anxiety of the patient and the stress of the parents. In this paper, we attempt to identify skeletally immature patients with mild scoliosis curvatures that are more at risk of progression and propose possible intervention for this group of subjects.
Methods:
The literature was searched in Pubmed, and additional references were searched manually in the literature.
Results:
Many studies have shown that low serum 25[OH]D level, bone mineral density (BMD), and body mass index (BMI) are related to the curve severity or progression of the curve.
We suggest that skeletally immature patients (< Risser 2) with mild curves be divided into two groups, viz. Group O (observation) with a lower risk of progression, and Group I (intervention) with a higher risk of curvature progression. We propose early intervention for the latter group.
It is suggested that pre-menarcheal, skeletally immature patients with mild idiopathic scoliosis, and low vitamin D, BMD, and BMI should be treated. Also, asymmetric foot biomechanics should be addressed, although nutrition and foot orthoses are regarded to have no role in the management of idiopathic scoliosis. The outcome of early intervention may be utterly different from late treatment when the curvature becomes more structural, and the patient more skeletally mature.
Conclusion:
Research is required to prove if the intervention is clinically indicated.
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Pasha S. 3D Deformation Patterns of S Shaped Elastic Rods as a Pathogenesis Model for Spinal Deformity in Adolescent Idiopathic Scoliosis. Sci Rep 2019; 9:16485. [PMID: 31712762 PMCID: PMC6848095 DOI: 10.1038/s41598-019-53068-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/23/2019] [Indexed: 02/03/2023] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a three-dimensional (3D) deformity of the spinal column in pediatric population. The primary cause of scoliosis remains unknown. The lack of such understanding has hampered development of effective preventive methods for management of this disease. A long-held assumption in pathogenesis of AIS is that the upright spine in human plays an important role in induction of scoliosis. Here, the variations in the sagittal curve of the scoliotic and non-scoliotic pediatric spines were used to study whether specific sagittal curves, under physiological loadings, are prone to 3D deformation leading to scoliosis. To this end, finite element models of the S shaped elastic rods, which their curves were derived from the radiographs of 129 sagittal spinal curves of adolescents with and without scoliosis, were generated. Using the mechanics of deformation in elastic rods, this study showed that the 3D deformation patterns of the two-dimensional S shaped slender elastic rods mimics the 3D patterns of the spinal deformity in AIS patients with the same S shaped sagittal spinal curve. On the other hand, the rods representing the non-scoliotic sagittal spinal curves, under the same mechanical loading, did not twist thus did not lead to a 3D deformation. This study provided strong evidence that the shape of the sagittal profile in individuals can be a leading cause of the 3D spinal deformity as is observed in the AIS population.
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Affiliation(s)
- Saba Pasha
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Division of Orthopedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
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Kiebzak GM, Neal KM. Impact of Race Subgroups on the Assessment of Vitamin D Status in Adolescent Idiopathic Scoliosis. Orthopedics 2019; 42:158-162. [PMID: 31099881 DOI: 10.3928/01477447-20190424-07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/15/2019] [Indexed: 02/03/2023]
Abstract
The authors' main objective was to demonstrate the confounding effect of combining subgroup data, specifically race, on the prevalence of vitamin D deficiency in adolescent idiopathic scoliosis (AIS). This was a retrospective chart review. Vitamin D deficiency was defined as 25-hydroxyvitamin D (25[OH]D) less than 20 ng/mL. Data were compared between white patients and black and Hispanic patients. Vitamin D status in girls with AIS was also compared with that in girls without AIS who had a history of fracture and with the medical literature to determine if deficiency in AIS was equal to or greater than other cohorts. Mean age was 13.9±2.3 years for the white girls with AIS (n=221) and 13.6±2.2 years for pooled non-whites (n=134). Significant racial differences were found that biased interpretation of the total pooled cohort. Mean 25(OH)D was 27.9±8.5 ng/mL for white girls with AIS vs 21.9±10.3 ng/mL for non-whites (P<.0001). Deficiency was present in 13.1% of white girls vs 47.8% of non-white girls (P<.0001). Compared with girls with fractures and with the published literature, the race-matched deficiency rates were not abnormally high in girls with AIS. Prevalence of deficiency was greater in non-whites with AIS than in whites. However, percent deficiency was not greater in girls with AIS than in race-matched cohorts without AIS. Without separating data by race, interpretation of vitamin D status can be confounded. [Orthopedics. 2019; 42(3):158-162.].
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Abstract
Vitamin D deficiency affects nearly one-sixth of the world's population and is common in patients undergoing foot and ankle surgery. Vitamin D is critical for calcium homeostasis and plays an important role in the maintenance of bone health. Patients undergoing foot and ankle procedures can be evaluated preoperatively with vitamin D level testing, and deficiencies can be addressed with either preoperative or postoperative supplementation. Current data suggest that patients with adequate vitamin D levels may have better outcomes, but the details are not yet clear. Vitamin D supplementation is well tolerated with rare side effects.
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