We thank the Editor for opportunity to respond Letter Editor: “Concerns regarding use of 3D-DXA” in relation our recent publication, Harding et al., Bone, 136, 2020, 115,362. The author writes “It is my understanding that it not possible measure cortical parameters from a two-dimensional dual-energy X-ray absorptiometry (DXA) image.” This correct. Technically, all so-called ‘measures’ indirec...

Application of bone densitometry to clinical use requires the availability of accessible reference data and is helped by an interpretative framework that is based on bone physiology. The aim of this contribution is to provide both reference data and help in the interpretation of results for peripheral quantitative computed tomography (Stratec XCT2000 performed at the distal radius of young subj...

Background: The Singh index is an inexpensive simple method to evaluate bone density, commonly used to assess osteoporosis is based on the radiological appearance of the trabecular bone structure of the proximal femur on a plain antero-posterior (AP) radiograph. The purpose of this study was to compare between Singh index and bone mineral density measurement using dual energy X-ray abs...

The concept of bone quality describes the sets of the characteristics of the osseous tissue that influence bone strength. The aim was to explore the influence of anthropometric parameters and age on the parameters of the bone architecture and bone mineral properties in the lumbar vertebral bone of men and women. Vertebral bone samples underwent bone histomorphometry, bone densitometry and atomi...

BACKGROUND Degenerative diseases are becoming more frequent in adults due to the increase in the average life, among them osteoporosis is with one prevalence higher in women mainly due to the lack of estrogen after menopause. OBJECTIVE Estimate the prevalence of osteoporosis and osteopenia by effectuate a bone densitometry in postmenopausal women and analyze the possible relationship with som...

No significant biochemical or radiological features of vitamin D deficiency were found in groups of juvenile and adult epileptics and control groups of nonepileptic patients in hospitals for the mentally retarded. There was evidence of hepatic enzyme induction in patients on anticonvulsants, in that urinary D-glucaric acid concentration and excretion were raised. No effect was found of prolonge...

BACKGROUND [corrected] By providing essential information regarding bone mineral density (BMD), Densitometry can predict the mechanical resistance of bone tissue and the risk of fractures. However, fractures frequently occur in the femoral cervix and the spine before the loss of BMD reaches the densitometric threshold of osteoporosis. MATERIAL AND METHODS We studied 46 patients with total hip...

OBJECTIVE This study assessed the relative risk factors for osteoporosis in women referring to the Bone Densitometry Center during 2007, with the aim of designing a formula to estimate the severity of osteoporosis. SUBJECTS AND METHODS Data of outpatients (n = 1,047) who visited the Bone Densitometry Center of Chamran Hospital were gathered by administering a questionnaire to subjects before ...

Purpose: To establish a rat mandibular fracture model and investigate the shortand long-term effects of recombinant parathyroid hormone (PTH 1-34) on mandibular fracture healing in rats. Materials and Methods: A controlled unilateral mandibular fracture was created surgically in 29 male Sprague-Dawley rats and then stabilized using an external fixation device. The rats were divided into 2 group...

Objectives. Femur strength index (FSI) has been previously described as a reliable measure of femur fracture risk in a fall. FSI computation requires software associated with bone densitometry equipment and incorporates measures of bony structural integrity. Because such software is not universally available, in the present study, we describe the evaluation of the biomechanical predictors of fe...