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Fosséprez J, Roels T, Manicourt D, Behets C. Craniofacial dysmorphism of osteogenesis imperfecta mouse and effect of cathepsin K knockout: Preliminary craniometry observations. Morphologie 2024; 108:100785. [PMID: 38788496 DOI: 10.1016/j.morpho.2024.100785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024]
Abstract
OBJECTIVES In addition to bone fragility, patients with osteogenesis imperfecta (OI) type III have typical craniofacial abnormalities, such as a triangular face and maxillary micrognathism. However, in the osteogenesis imperfecta mouse (oim), a validated model of OI type III, few descriptions exist of craniofacial phenotype. Treatment of OI mostly consists of bisphosphonate administration. Cathepsin K inhibition has been tested as a promising therapeutic approach for osteoporosis and positive results were observed in long bones of cathepsin K knocked out oim (oim/CatK-/-). This craniometry study aimed to highlight the craniofacial characteristics of oim and Cathepsin K KO mouse. MATERIALS AND METHODS We analyzed the craniofacial skeleton of 51 mice distributed in 4 genotype groups: Wt (control), oim, CatK-/-, oim/CatK-/-. The mice were euthanized at 13 weeks and their heads were analyzed using densitometric (pQCT), X-ray cephalometric, and histomorphometric methods. RESULTS The craniofacial skeleton of the oim mouse is frailer than the Wt one, with a reduced thickness and mineral density of the cranial vault and mandibular ramus. Different cephalometric data attest a dysmorphism similar to the one observed in humans with OI type III. Those abnormalities were not improved in the oim/CatK-/- group. CONCLUSION These results suggest that oim mouse could serve as a complete model of the human OI type III, including the craniofacial skeleton. They also suggest that invalidation of cathepsin K has no impact on the craniofacial abnormalities of the oim model.
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Affiliation(s)
- J Fosséprez
- Pole of Morphology, institut de recherche expérimentale et clinique (IREC), université catholique de Louvain (UCLouvain), Brussels, Belgium.
| | - T Roels
- Pole of Morphology, institut de recherche expérimentale et clinique (IREC), université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - D Manicourt
- Pole of Rheumatic Diseases, IREC, UCLouvain, Brussels, Belgium
| | - C Behets
- Pole of Morphology, institut de recherche expérimentale et clinique (IREC), université catholique de Louvain (UCLouvain), Brussels, Belgium
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2
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Zarrin DA, Campos JK, Meyer BM, Himstead AS, Laghari F, Collard de Beaufort JC, Golshani K, Beaty NB, Bender MT, Colby GP, Coon AL. Flow diversion of cerebral aneurysms in Type I osteogenesis imperfecta: A case report of the first two treatments in humans. SAGE Open Med Case Rep 2024; 12:2050313X241274243. [PMID: 39185069 PMCID: PMC11344899 DOI: 10.1177/2050313x241274243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 07/09/2024] [Indexed: 08/27/2024] Open
Abstract
Osteogenesis imperfecta (OI) predisposes individuals to easy bone fracture, vessel fragility, and platelet dysfunction. We report the first known case of neurointerventional treatment with flow diversion of intracranial aneurysms in a patient with OI. A 62 year-old female with known OI Type I, history of >40 lifetime bone fractures and hypertension, underwent workup for transient ischemic attacks revealing a 4-mm right A1 segment aneurysm in 2016. Perioperative dual antiplatelet therapy was aspirin 81 mg and clopidogrel 37.5 mg daily. Tri-axial access was utilized to deploy a 3.5 × 16-mm Pipeline Flex device without complication. Two-month follow-up revealed Raymond I (O'Kelly Marotta I) obliteration of the aneurysm. Five-year follow-up revealed a de novo left-sided 3-mm A1-A2 junction aneurysm. A 4 × 12-mm Surpass Evolve was placed without complication. Six-month follow-up revealed Raymond I (O'Kelly Marotta I) obliteration of the second aneurysm. The patient remained asymptomatic at all follow-up visits.
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Affiliation(s)
- David A Zarrin
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Jessica K Campos
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | | | - Alexander S Himstead
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | - Fahad Laghari
- Carondelet Neurological Institute, St. Joseph’s Hospital, Tucson, AZ, USA
| | | | - Kiarash Golshani
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | - Narlin B Beaty
- Florida State University, Tallahassee Memorial Hospital, Tallahassee, FL, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester, Rochester, NY, USA
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, CA, USA
| | - Alexander L Coon
- Carondelet Neurological Institute, St. Joseph’s Hospital, Tucson, AZ, USA
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Nicholson LL, Rao PJ, Lee M, Wong TM, Cheng RHY, Chan C. Reference values of four measures of craniocervical stability using upright dynamic magnetic resonance imaging. LA RADIOLOGIA MEDICA 2023; 128:330-339. [PMID: 36715785 PMCID: PMC10020271 DOI: 10.1007/s11547-023-01588-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 01/04/2023] [Indexed: 01/31/2023]
Abstract
PURPOSE To establish reference ranges for four most commonly used diagnostic measures of craniocervical instability (CCI) in three cervical sagittal positions. This necessitated development of a reliable measurement protocol using upright, dynamic MRI (udMRI), to determine differences in the extent of motion between positions, and whether age and sex correlate with these measures. MATERIALS AND METHODS Deidentified udMRIs of 50 adults, referred for reasons other than CCI, were captured at three positions (maximal flexion, maximal extension and neutral). Images were analyzed, providing measures of basion-axial interval, basion-axial angle, basion-dens interval (BDI) and the Grabb-Oakes line (GOL) for all three positions (12 measures per participant). All measures were independently recorded by a radiologist and neurosurgeon to determine their reliability. Descriptive statistics, correlations, paired and independent t-tests were used. Mean (± 2 SD) identified the reference range for all four measures at each craniocervical position. RESULTS The revised measurement protocol produced inter-rater reliability indices of 0.69-0.97 (moderate-excellent). Fifty adults' (50% male; mean age 41.2 years (± 9.7)) reference ranges for all twelve measures were reported. Except for the BDI and GOL when moving between neutral and full flexion, significant extents of movement were identified between the three craniocervical positions for all four measures (p ≤ 0.005). Only a minor effect of age was found. CONCLUSIONS This is the first study to provide a rigorous standardized protocol for four diagnostic measures of CCI. Reference ranges are established at mid and ends of sagittal cervical range corresponding to where exacerbations of signs and symptoms are commonly reported.
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Affiliation(s)
- Leslie L Nicholson
- School of Medical Sciences, The University of Sydney, Camperdown, NSW, Australia.
| | - Prashanth J Rao
- Macquarie University Hospital, Macquarie Park, NSW, Australia
- Faculty of Medicine and Health, Macquarie University, Macquarie Park, NSW, Australia
| | - Matthew Lee
- Radiology, Western Imaging Group, Blacktown, NSW, Australia
| | - Tsz Ming Wong
- Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Regen Hoi Yan Cheng
- Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Cliffton Chan
- School of Medical Sciences, The University of Sydney, Camperdown, NSW, Australia
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Dandapat S, Guerrero WR, Ortega-Gutierrez S. Acute StrokeTreatment in Children: Are Adult Guidelines Applicable? Curr Treat Options Neurol 2022; 24:41-54. [PMID: 35509674 PMCID: PMC9060549 DOI: 10.1007/s11940-022-00707-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Purpose of this Review This article provides an overview into acute treatments in stroke which are widely studied and available for adults and their applicability in the pediatric population. Recent Findings Arterial ischemic stroke is an important cause of morbidity and mortality in the pediatric population. Neurological deficits and etiologies are age-dependent and more challenging to diagnose than in the adult population. Advancements in imaging and treatment modalities including increased treatment windows in acute stroke have led to improvement in the diagnosis and management of pediatric arterial ischemic disease. Accordingly, hyperacute treatments, such as endovascular therapy, are becoming increasingly available in an attempt to improve outcomes in children. Summary Significant scientific and technological advances have transformed the hyperacute treatment of stroke in the recent years, allowing for improvement in the diagnosis and treatment of cerebrovascular pathologies in children. Optimization in the approach, and validation of existing stroke pathways/protocols is expected to further advance acute stroke therapy in pediatric patient care. Given that the lifelong individual, family, and societal burden of acute stroke is likely to be greater than in adults because infants and children surviving stroke live more years with disability, we must be knowledgeable about this pathology and the medical and therapeutic options available for this unique population as detailed in this review.
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Affiliation(s)
- Sudeepta Dandapat
- Department of Neurosciences, Aurora Neuroscience Innovation Institute, St.Luke’s Hospital, Milwaukee, WI
| | - Waldo R. Guerrero
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL
| | - Santiago Ortega-Gutierrez
- Department of Neurology, Radiology and Neurosurgery, University of Iowa Comprehensive Stroke Center, Iowa City, IA
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Sudhir BJ, Keelara AG, Venkat EH, Kazumata K, Sundararaman A. The mechanobiological theory: a unifying hypothesis on the pathogenesis of moyamoya disease based on a systematic review. Neurosurg Focus 2021; 51:E6. [PMID: 34469862 DOI: 10.3171/2021.6.focus21281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/17/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Moyamoya angiopathy (MMA) affects the distal internal carotid artery and is designated as moyamoya disease (MMD) when predisposing conditions are absent, or moyamoya syndrome (MMS) when it occurs secondary to other causes. The authors aimed to investigate the reason for this anatomical site predilection of MMA. There is compelling evidence to suggest that MMA is a phenomenon that occurs due to stereotyped mechanobiological processes. Literature regarding MMD and MMS was systematically reviewed to decipher a common pattern relating to the development of MMA. METHODS A systematic review was conducted to understand the pathogenesis of MMA in accordance with PRISMA guidelines. PubMed MEDLINE and Scopus were searched using "moyamoya" and "pathogenesis" as common keywords and specific keywords related to six identified key factors. Additionally, a literature search was performed for MMS using "moyamoya" and "pathogenesis" combined with reported associations. A progressive search of the literature was also performed using the keywords "matrix metalloprotease," "tissue inhibitor of matrix metalloprotease," "endothelial cell," "smooth muscle cell," "cytokines," "endothelin," and "transforming growth factor" to infer the missing links in molecular pathogenesis of MMA. Studies conforming to the inclusion criteria were reviewed. RESULTS The literature search yielded 44 published articles on MMD by using keywords classified under the six key factors, namely arterial tortuosity, vascular angles, wall shear stress, molecular factors, blood rheology/viscosity, and blood vessel wall strength, and 477 published articles on MMS associations. Information obtained from 51 articles that matched the inclusion criteria and additional information derived from the progressive search mentioned above were used to connect the key factors to derive a network pattern of pathogenesis. CONCLUSIONS Based on the available literature, the authors have proposed a unifying theory for the pathogenesis of MMA. The moyamoya phenomenon appears to be the culmination of an interplay of vascular anatomy, hemodynamics, rheology, blood vessel wall strength, and a plethora of intricately linked mechanobiological molecular mediators that ultimately results in the mechanical process of occlusion of the blood vessel, stimulating angiogenesis and collateral blood supply in an attempt to perfuse the compromised brain.
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Affiliation(s)
- Bhanu Jayanand Sudhir
- 1Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala State, India
| | - Arun Gowda Keelara
- 1Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala State, India
| | - Easwer Harihara Venkat
- 1Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala State, India
| | - Ken Kazumata
- 2Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan; and
| | - Ananthalakshmy Sundararaman
- 3Department of Cardiovascular Diseases and Diabetes Biology, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala State, India
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Cardinal M, Chretien A, Roels T, Lafont S, Ominsky MS, Devogelaer JP, Manicourt DH, Behets C. Gender-Related Impact of Sclerostin Antibody on Bone in the Osteogenesis Imperfecta Mouse. Front Genet 2021; 12:705505. [PMID: 34447412 PMCID: PMC8383339 DOI: 10.3389/fgene.2021.705505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/29/2021] [Indexed: 11/13/2022] Open
Abstract
Osteogenesis imperfecta (OI), which is most often due to a collagen type 1 gene mutation, is characterized by low bone density and bone fragility. In OI patients, gender-related differences were reported, but data in the literature are not convergent. We previously observed that sclerostin antibody (Scl-Ab), which stimulates osteoblast Wnt pathway via sclerostin inactivation, improved spine and long-bone parameters and biomechanical strength in female oim/oim mice, a validated model of human type 3 OI. Here, we wanted to highlight the effect of Scl-Ab on male oim/oim bones in order to identify a possible distinct therapeutic effect from that observed in females. According to the same protocol as our previous study with female mice, male wild-type (Wt) and oim/oim mice received vehicle or Scl-Ab from 5 to 14 weeks of age. Clinimetric and quantitative bone parameters were studied using X-rays, peripheral quantitative computed tomography, microradiography, and dynamic histomorphometry and compared to those of females. Contrary to Wt mice, male oim/oim had significantly lower weight, snout-sacrum length, and bone mineral content than females at 5 weeks. No significant difference in these clinimetric parameters was observed at 14 weeks, whereas male oim showed significantly more long-bone fractures than females. Scl-Ab improved bone mineral density and bone volume/total volume ratio (BV/TV) of vertebral body in Wt and oim/oim, without significant difference between male and female at 14 weeks. Male vehicle oim/oim had a significantly lower cortical thickness (Ct.Th) and BV/TV of tibial diaphysis than female and showed a higher number of fractures at 14 weeks. Scl-Ab increased midshaft periosteal apposition rate in such a way that tibial Ct.Th of male oim/oim was not significantly different from the female one at 14 weeks. The number of fractures was lower in male than female oim/oim after 14 weeks of Scl-Ab treatment, but this difference was not significant. Nevertheless, Scl-Ab-treated oim/oim male and female mice remained smaller than the Wt ones. In conclusion, our results highlighted differences between male and female oim/oim at 4 and 14 weeks of age, as well as some male-specific response of cortical bone to Scl-Ab. These gender-related particularities of oim/oim should be considered when testing experimental treatments.
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Affiliation(s)
- Mickaël Cardinal
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Antoine Chretien
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Thomas Roels
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Sébastien Lafont
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Michael S Ominsky
- Radius Inc., Waltham, MA, United States.,Amgen Inc., Thousand Oaks, CA, United States
| | - Jean-Pierre Devogelaer
- Pole of Rheumatic Pathologies, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Daniel H Manicourt
- Pole of Rheumatic Pathologies, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Catherine Behets
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
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Sidpra J, Chhabda S, Oates AJ, Bhatia A, Blaser SI, Mankad K. Abusive head trauma: neuroimaging mimics and diagnostic complexities. Pediatr Radiol 2021; 51:947-965. [PMID: 33999237 DOI: 10.1007/s00247-020-04940-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/13/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022]
Abstract
Traumatic brain injury is responsible for approximately half of all childhood deaths from infancy to puberty, the majority of which are attributable to abusive head trauma (AHT). Due to the broad way patients present and the lack of a clear mechanism of injury in some cases, neuroimaging plays an integral role in the diagnostic pathway of these children. However, this nonspecific nature also presages the existence of numerous conditions that mimic both the clinical and neuroimaging findings seen in AHT. This propensity for misdiagnosis is compounded by the lack of pathognomonic patterns and clear diagnostic criteria. The repercussions of this are severe and have a profound stigmatic effect. The authors present an exhaustive review of the literature complemented by illustrative cases from their institutions with the aim of providing a framework with which to approach the neuroimaging and diagnosis of AHT.
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Affiliation(s)
- Jai Sidpra
- University College London Medical School, London, UK
| | - Sahil Chhabda
- Department of Radiology, Great Ormond Street Hospital, Great Ormond Street, London, WC1N 3JH, UK
| | - Adam J Oates
- Department of Radiology, Birmingham Children's Hospital, Birmingham, UK
| | - Aashim Bhatia
- Department of Radiology, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Susan I Blaser
- Department of Radiology, Hospital for Sick Children, Toronto, ON, Canada
| | - Kshitij Mankad
- Department of Radiology, Great Ormond Street Hospital, Great Ormond Street, London, WC1N 3JH, UK.
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Kubota T, Adachi M, Kitaoka T, Hasegawa K, Ohata Y, Fujiwara M, Michigami T, Mochizuki H, Ozono K. Clinical Practice Guidelines for Achondroplasia. Clin Pediatr Endocrinol 2020; 29:25-42. [PMID: 32029970 PMCID: PMC6958518 DOI: 10.1297/cpe.29.25] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/07/2019] [Indexed: 12/04/2022] Open
Abstract
Achondroplasia (ACH) is a skeletal dysplasia that presents with limb shortening, short
stature, and characteristic facial configuration. ACH is caused by mutations of the
FGFR3 gene, leading to constantly activated FGFR3 and activation of its
downstream intracellular signaling pathway. This results in the suppression of chondrocyte
differentiation and proliferation, which in turn impairs endochondral ossification and
causes short-limb short stature. ACH also causes characteristic clinical symptoms,
including foramen magnum narrowing, ventricular enlargement, sleep apnea, upper airway
stenosis, otitis media, a narrow thorax, spinal canal stenosis, spinal kyphosis, and
deformities of the lower extremities. Although outside Japan, papers on health supervision
are available, they are based on reports and questionnaire survey results. Considering the
scarcity of high levels of evidence and clinical guidelines for patients with ACH,
clinical practical guidelines have been developed to assist both healthcare professionals
and patients in making appropriate decisions in specific clinical situations. Eleven
clinical questions were established and a systematic literature search was conducted using
PubMed/MEDLINE. Evidence-based recommendations were developed, and the guidelines describe
the recommendations related to the clinical management of ACH. We anticipate that these
clinical practice guidelines for ACH will be useful for healthcare professionals and
patients alike.
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Affiliation(s)
- Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
| | - Masanori Adachi
- Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center, Yokohama, Japan.,Guidelines Development Committee for Achondroplasia
| | - Taichi Kitaoka
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
| | - Kosei Hasegawa
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmacological Sciences, Okayama, Japan.,Guidelines Development Committee for Achondroplasia
| | - Yasuhisa Ohata
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
| | - Makoto Fujiwara
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
| | - Toshimi Michigami
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
| | - Hiroshi Mochizuki
- Division of Endocrinology and Metabolism, Saitama Children's Medical Center, Saitama, Japan.,Guidelines Development Committee for Achondroplasia
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Guidelines Development Committee for Achondroplasia
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Majeed NK, Oramas D, Lindgren V, Garzon S, Wiley DE, Enakpene C, Emmadi R. A Case of Osteogenesis Imperfecta Type II With Additional Balanced Translocation t(1;20)(p13;p11.2). Fetal Pediatr Pathol 2019; 38:263-271. [PMID: 30942118 DOI: 10.1080/15513815.2019.1579877] [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] [Indexed: 10/27/2022]
Abstract
BACKGROUND Osteogenesis imperfect (OI) type II is a genetic disorder of bone characterized by bone fragility, multiple fractures, severe bowing and shortening of long bones, and perinatal death due to respiratory insufficiency. It is mainly caused by mutations in the COL1A1 or COL1A2 genes, inherited in an autosomal dominant manner. CASE REPORT A fetal form of this disorder that included brachydactyly, macrocephaly, frontal bossing, soft calvarium, saddle nose, micrognathia, low set ears, and narrow thoracic cavity is described. A postmortem skeletal survey revealed multiple fractures, unossified skull, and long crumpled bones. The fetal karyotype revealed a balanced translocation t(1;20)(p13;p11.2). DNA sequencing detected a c.3065G > T transversion in exon 42 of the COL1A1 gene, a mutation associated with OI type II. CONCLUSION Although the balanced translocation t(1:20)(p13;p11.2) appears to be incidental in our case, identification of the specific mutation and translocation is important for estimation of genetic risk for another afflicted child.
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Affiliation(s)
- Nasma K Majeed
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
| | - Diana Oramas
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
| | - Valerie Lindgren
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
| | - Steven Garzon
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
| | - Dr Elizabeth Wiley
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
| | | | - Rajyasree Emmadi
- a Pathology Department , University of Illinois at Chicago , Chicago , IL , USA
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Franzone JM, Shah SA, Wallace MJ, Kruse RW. Osteogenesis Imperfecta: A Pediatric Orthopedic Perspective. Orthop Clin North Am 2019; 50:193-209. [PMID: 30850078 DOI: 10.1016/j.ocl.2018.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Osteogenesis imperfecta is a genetically and phenotypically heterogeneous disorder related to a defect or deficiency in the production of type I collagen. It is characterized by brittle bones, fractures, spine and extremity deformity, and a host of extraskeletal manifestations. Type I collagen is present in bone, tendons, ligaments, skin, dentin, and the sclera of the eye and other connective tissues. Osteogenesis imperfecta includes a multitude of disease manifestations that may be present at birth or develop over time and vary depending on the severity of the disease. This article describes the disease presentation and management considerations from a pediatric orthopedic perspective.
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Affiliation(s)
- Jeanne M Franzone
- Department of Orthopaedic Surgery, Nemours Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803, USA.
| | - Suken A Shah
- Department of Orthopaedic Surgery, Nemours Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803, USA
| | - Maegen J Wallace
- Department of Orthopaedic Surgery, University of Nebraska Medical Center, Children's Hospital and Medical Center, 8200 Dodge Street, Omaha, NE 68114, USA
| | - Richard W Kruse
- Department of Orthopaedic Surgery, Nemours Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803, USA
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11
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Castelein RM, Hasler C, Helenius I, Ovadia D, Yazici M. Complex spine deformities in young patients with severe osteogenesis imperfecta: current concepts review. J Child Orthop 2019; 13:22-32. [PMID: 30838072 PMCID: PMC6376432 DOI: 10.1302/1863-2548.13.180185] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The severity of osteogenesis imperfecta (OI), the associated reduced quality and quantity of collagen type I, the degree of bone fragility, ligamentous laxity, vertebral fractures and multilevel vertebral deformities all impair the mechanical integrity of the whole spinal architecture and relate to the high prevalence of progressive kyphoscoliotic deformities during growth. Bisphosphonate therapy may at best slow down curve progression but does not seem to lower the prevalence of deformities or the incidence of surgery. Brace treatment is problematic due to pre-existing chest wall deformities, stiffness of the curve and the brittleness of the ribs which limit transfer of corrective forces from the brace shell to the spine. Progressive curves entail loss of balance, chest deformities, pain and compromise of pulmonary function and eventually require surgical stabilization, usually around puberty. Severe vertebral deformities including deformed, small pedicles, highly brittle bones and chest deformities, short deformed trunks and associated issues like C-spine and cranial base abnormalities (basilar impressions, cervical kyphosis) as well as deformed lower and upper extremities are posing multiple peri- and intraoperative challenges. Hence, an early multidisciplinary approach (anaesthetist, pulmonologist, paediatric orthopaedic spine surgeon) is mandatory. This paper was written under the guidance of the Spine Study Group of the European Paediatric Orthopaedic Society. It highlights the most pertinent information given in the current literature and various practical aspects on surgical care of spine deformities in young OI patients based on the personal experience of the contributing authors.
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Affiliation(s)
- R. M. Castelein
- Department of Orthopaedic Surgery, University Medical Center Utrecht, The Netherlands
| | - C. Hasler
- Orthopaedic Department, Children’s Hospital, University of Basel, Switzerland, Correspondence should be sent to C. Hasler, Orthopaedic Department, Children’s Hospital, University of Basel, Spitalstrasse 33, 4056 Basel, Switzerland. E-mail:
| | - I. Helenius
- Department of Paediatric Orthopaedic Surgery, University of Turku and Turku University Hospital, Turku, Finland
| | - D. Ovadia
- Department of Paediatric Orthopaedic Surgery, Dana Dwek Children’s Hospital, Tel Aviv Sourasky Medical Center, Affilated to Tel Aviv University Sackler School of Medicine, Tel Aviv, Israel
| | - M. Yazici
- Hacettepe University, Faculty of Medicine, Dept of Orthopaedics Ankara, Turkey
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Ralston SH, Gaston MS. Management of Osteogenesis Imperfecta. Front Endocrinol (Lausanne) 2019; 10:924. [PMID: 32117044 PMCID: PMC7026366 DOI: 10.3389/fendo.2019.00924] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/18/2019] [Indexed: 12/24/2022] Open
Abstract
Osteogenesis imperfecta (OI) is the term used to describe a group of rare inherited skeletal disorders characterized by a greatly increased risk of fragility fractures (1). Mutations in several genes can cause OI but the condition is most commonly caused by mutations of COLIA1 or COL1A2 resulting in the production of collagen which is abnormal or present in reduced amounts. Fractures in OI are particularly common during childhood but the elevated fracture risk continues throughout life. Bone mineral density (BMD) can be reduced in OI but the magnitude of increase in fracture risk is far greater than can be accounted for by low BMD, highlighting that a key mechanism of bone fragility is reduced bone quality due to defects of bone matrix and mineralization. A multidisciplinary approach is needed to optimize management of OI, with input from physicians, orthopedic surgeons, physiotherapists, occupational therapists, and other allied health professionals. Orthopedic surgery plays a key role both in the fixation of fractures and in the correction of limb deformities. Bisphosphonates have been widely used in the treatment of children and adults with OI. Although there is good evidence that they increase BMD, it is uncertain to what extent they reduce fracture risk. Clinical trials of bone anabolic drugs such as teriparatide and inhibitors of sclerostin have also been studied; although they increase BMD, studies of these agents have not been powered to look at fracture endpoints. Various other treatment modalities including denosumab, and cell therapy have been explored but haven't gained acceptance in routine clinical practice. There have been huge advances in understanding the pathogenesis of OI but these have not been accompanied by advances in treatment. This signals need for well-designed clinical trials with fracture endpoints in OI, both with existing agents and with the newer therapeutic agents that are now starting to emerge.
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Affiliation(s)
- Stuart H. Ralston
- Centre for Genetics and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, United Kingdom
- *Correspondence: Stuart H. Ralston
| | - Mark S. Gaston
- Royal Hospital for Sick Children, Edinburgh, United Kingdom
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Pavlova OM, Ryabykh SO, Burcev AV, Gubin AV. Anomaly-Related Pathologic Atlantoaxial Displacement in Pediatric Patients. World Neurosurg 2018; 114:e532-e545. [DOI: 10.1016/j.wneu.2018.03.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/02/2018] [Accepted: 03/05/2018] [Indexed: 11/30/2022]
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Abstract
Osteogenesis imperfecta is a genetic disorder of type I collagen. Although multiple genotypes and phenotypes are associated with osteogenesis imperfecta, approximately 90% of the mutations are in the COL1A1 and COL1A2 genes. Osteogenesis imperfecta is characterized by bone fragility. Patients typically have multiple fractures or limb deformity; however, the spine can also be affected. Spinal manifestations include scoliosis, kyphosis, craniocervical junction abnormalities, and lumbosacral pathology. The incidence of lumbosacral spondylolysis and spondylolisthesis is higher in patients with osteogenesis imperfecta than in the general population. Use of diphosphonates has been found to decrease the rate of progression of scoliosis in patients with osteogenesis imperfecta. A lateral cervical radiograph is recommended in patients with this condition before age 6 years for surveillance of craniocervical junction abnormalities, such as basilar impression. Intraoperative and anesthetic considerations in patients with osteogenesis imperfecta include challenges related to fracture risk, airway management, pulmonary function, and blood loss.
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Dissecting Aneurysm of the Recurrent Artery of Heubner in a Patient With Osteogenesis Imperfecta. Can J Neurol Sci 2015; 42:461-5. [DOI: 10.1017/cjn.2015.295] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
BACKGROUND The Fassier-Duval (FD) rod is a stainless-steel device widely used to correct bone deformities and reduce the risk of fractures in patients with osteogenesis imperfecta (OI). Since these are telescopic expandable rods, there has been a reluctance to perform magnetic resonance imaging (MRI) in patients with OI secondary to a theoretical risk of migration during the MRI scans. The primary aim of this study was to assess the risk of migration of FD rods in patients who underwent MRI of the spine. The secondary aims are to assess the heating effects and artifact of these implants. METHODS We retrospectively reviewed our database for all patients with OI who had undergone FD rodding and subsequent MRI evaluation for craniofacial and spinal disorders. Ten patients were eligible to be included in the study. The MRI examination was performed in all patients using a1.5 T magnet. The radiographic images pre-MRI and post-MRI were evaluated and compared to assess whether or not migration of implants had occurred. Patients' charts and MRI logbooks were reviewed to assess the heating effects based on patient-reported events during or immediately after the MRI. In addition, the scans were reviewed to evaluate peri-implant soft tissues to assess for changes that might indicate such effect. Artifact was judged to be present if it interfered with the evaluation of any portion of spinal anatomy of clinical interest. RESULTS Ten patients underwent 19 FD roddings. The indications for MRI in these patients were basilar invagination, basilar impression, platybasia, and complex scoliosis. None of the implants have shown any migration, heating effect, or artifact. CONCLUSIONS FD rods are safe and pose no risk of migration, heating effects, or artifact when undergoing an MRI of the spine using a 1.5 T magnet. With the introduction of magnet strengths higher than 1.5 T, further testing should be performed. LEVEL OF EVIDENCE Level IV.
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Abstract
Bone is a dynamic organ of the endoskeleton, playing an important role in structural integrity, mineral reservoirs, blood production, coagulation, and immunity. Metabolic bone disease encompasses a broad spectrum of inherited and acquired disorders that disrupt the normal homeostasis of bone formation and resorption. For patients affected by these processes, radiologic imaging plays a central role in diagnosis, monitoring treatment, and risk stratification. Radiologists should be familiar with the diseases, intimately aware of the imaging findings, and possessive of multimodality expertise to wisely guide the best practice of medicine. The purpose of this paper is to review the imaging features and characteristics of the most common types of metabolic bone disease with highlights of clinically relevant information so that readers can better generate appropriate differential diagnoses and recommendations. For this review, a thorough literature search for the most up-to-date information was performed on several key types of metabolic bone disease: osteoporosis, osteomalacia, rickets, scurvy, renal osteodystrophy, hyperparathyroidism, Paget’s disease, osteogenesis imperfecta, acromegaly, and osteopetrosis. Although they all affect the bone, these diseases have both shared characteristic features that can be discerned through imaging.
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Arponen H, Vuorimies I, Haukka J, Valta H, Waltimo-Sirén J, Mäkitie O. Cranial base pathology in pediatric osteogenesis imperfecta patients treated with bisphosphonates. J Neurosurg Pediatr 2015; 15:313-20. [PMID: 25559924 DOI: 10.3171/2014.11.peds14113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Cranial base pathology is a serious complication of osteogenesis imperfecta (OI). Our aim was to analyze whether bisphosphonate treatment, used to improve bone strength, could also prevent the development of craniocervical junction pathology (basilar impression, basilar invagination, or platybasia) in children with OI. METHODS In this single-center retrospective study the authors analyzed the skull base morphology from lateral skull radiographs and midsagittal MR images (total of 94 images), obtained between the ages of 0 and 25 years in 39 bisphosphonate-treated OI patients. The results were compared with age-matched normative values and with findings in 70 OI patients who were not treated with bisphosphonates. In addition to cross-sectional data, longitudinal data were available from 22 patients with an average follow-up period of 7.6 years. The patients, who had OI types I, III, IV, VI, and VII, had been treated with zoledronic acid, pamidronate, or risedronate for 3.2 years on average. RESULTS Altogether 33% of the 39 bisphosphonate-treated patients had at least 1 cranial base anomaly, platybasia being the most prevalent diagnosis (28%). Logistic regression analysis suggested a higher risk of basilar impression or invagination in patients with severe OI (OR 22.04) and/or older age at initiation of bisphosphonate treatment (OR 1.45), whereas a decreased risk was associated with longer duration of treatment (OR 0.28). No significant associations between age, height, or cumulative bisphosphonate dose and the risk for cranial base anomaly were detected. In longitudinal evaluation, Kaplan-Meier curves suggested delayed development of cranial base pathology in patients treated with bisphosphonates but the differences from the untreated group were not statistically significant. CONCLUSIONS These findings indicate that cranial base pathology may develop despite bisphosphonate treatment. Early initiation of bisphosphonate treatment may delay development of craniocervical junction pathology. Careful followup of cranial base morphology is warranted, particularly in patients with severe OI.
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Affiliation(s)
- Heidi Arponen
- Department of Orthodontics, Institute of Dentistry, University of Helsinki
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Multiple dysgenesis of brain supplying arteries in a patient with osteogenesis imperfecta. Neurol Sci 2014; 35:1153-4. [DOI: 10.1007/s10072-014-1710-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 03/04/2014] [Indexed: 10/25/2022]
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