Bone Abstracts

In a recent randomized controlled trial comparing vertebroplasty (VP) vs conservative treatment (CT) in patients with symptomatic vertebral fractures (VF) we observed the development of severe chronic back pain (CBP) in nearly one quarter of patients. The aim of this study was to evaluate the risk factors related to the development of CBP in these subjects.Methods: We evaluated risk factors including: visual analog scale (VAS) at baseline and during the ...

Apart from analyses of well-known correlates of age-related hip fracture risk, such as low BMD, impaired external geometry and deteriorated micro-architecture, there is increasing interest to elucidate nano-structural determinants of fracture risk at the bone mineralized matrix level.In this study we analyzed cortical bone specimens of the femoral neck region in five elderly women who sustained hip fracture and in four healthy women of corresponding age....

Tooth fracture is considered as a major problem in dentistry. As it is commonly observed in dental practice, one of the main factors that lead to increased tooth fragility is its devitalization. However, there is no definite mechanistic explanation for such phenomenon. We hypothesize that the possible response to this matter lies in the changes that occur in dentin due to altered microenvironment after endodontic procedure. Therefore, in this study we analyzed the structural a...

Background: Osteoclasts are unique multinucleated cells that originate from the fusion of monocytes. They are the only cells known to be capable of bone resorption. Interestingly, the foreign body multinucleated giant cell (FBGC) arises from the same lineage as the osteoclast, and they share numerous similar characteristics, among which the expression of tartrate resistant acid phosphatase (TRAcP). Yet, it is not known whether the FBGC has the capacity to resorb bone.<p cl...

Introduction and objectives: There is an increasing interest in knowing the factors related to the wear particle-induced disease in total hip replacement (THR), after long-term follow up. Numerous studies have analyzed the development and the destruction patterns of the osteolisis. The objectives of this study were to determine the factors associated with major frequency and severity of this disease and their influence in the osteolytic progression pattern, using magnetic reso...

Extreme high bone mass (HBM) may be monogenic (e.g. LRP5 mutations) or polygenic, due to variants in the same genes determining bone mineral density (BMD) as found in the general population. We aimed to determine how variation in established BMD loci, in different functional pathways, explains the HBM phenotype.241 unexplained HBM cases (lumbar spine(LS)1+total hip(TH) Z-scores≥+4.4) were recruited from 15 UK centres, by screening...

Objectives: Osteogenesis imperfecta (OI) is a relatively common skeletal dysplasia characterized by bone fragility, mainly resulting from mutations in the COL1A1 and COL1A2 genes. Phenotype–genotype correlation is not fully uncovered in OI. Additionally, more than ten genes have been found to be responsible for OI. In the current study, we determine mutations in patients with OI using a targeted exome sequencing and examine a phenotype–genotype correlation.<p cla...

Osteogenesis Imperfecta (OI) is a brittle bone disease, characterized with reduced bone mass and bone fragility of different severity due to collagen type I defects. Patients suffer from recurrent spontaneous fractures starting in the early childhood or before birth.The main aim of the study was to relate time of the first fracture with COL1A1/2 mutations causing OI.Total number of 167 unrelated OI patients from the Osteog...

Osteogenesis Imperfecta (OI) is a rare congenital disorder of bone fragility. Majority of OI cases are caused by loss of function or missense pathogenic variants in the COL1A1/2 genes. In addition to fractures, patients suffer from different, mainly long bone, skeletal deformities. OI patients might develop chest deformities (pectus carinatum (PC) or excavatum (PE)) of different severity, which can tend to formation of cardiopulmonary complications. The main aim of current stu...

Introduction: Due to the ‘greying’ of (industrialized) societies the incidence of osteoporosis and fragility fractures is expected to be increasing. Our aim was to investigate in an elderly population if the incidence of non-vertebral fractures (overall and site specific) has changed after a longer follow-up, and its relation with osteoporosis or osteopenia assessed by bone mineral density (BMD) at baseline.Methods: Incident non-vertebral fract...