Suboptimal patient positioning with panoramic and CBCT imaging: effects on dose.

Objective: This study examined the effects of changes in patient positioning on radiation exposure for panoramic and cone beam computed tomography (CBCT) radiographic examinations by measuring effective dose (E) and equivalent doses.

Study Design: Simulated radiographic examinations with optimal and suboptimal positioning-anterior shift by 1 centimeter (cm), posterior shift by 1 cm, chin lowered by 10 degrees (°), chin elevated by 10°, rotation by 10°, and lateral shift by 1 cm-were conducted using a tissue-equivalent phantom and optically-stimulated luminescent dosimeters. Exposures were made with the RAYSCAN Alpha Plus 160 X-ray unit using the following exposure parameters: panoramic, 80 kVp, 14 mA, and 13.

Development, Acceptability, and Usability of a Virtual Intervention for Vertebral Fractures.

Objective: This project aimed to develop a virtual intervention for vertebral fractures (VIVA) to implement the international recommendations for the nonpharmacological management of osteoporotic vertebral fractures and to test its acceptability and usability.

Methods: VIVA was developed in accordance with integrated knowledge translation principles and was informed by the Behavioral Change Wheel, the Theoretical Domains Framework, and the affordability, practicability, effectiveness and cost-effectiveness, acceptability, side effects/safety, and equity (APEASE) criteria. The development of the prototype of VIVA involved 3 steps: understanding target behaviors, identifying intervention options, and identifying content and implementation options.

Non-pharmacological management of osteoporotic vertebral fractures: health-care professional perspectives and experiences.

Purpose: To understand experiences and perceptions on non-pharmacological treatment of vertebral fractures and virtual-care from the perspective of care professionals' (HCPs).

Design And Setting: We conducted semi-structured interviews with 13 HCPs within Canada (7 F, 6 M, aged 46 ± 12 years) and performed a thematic and content analysis from a post-positivism perspective.

Results: Two themes were identified: acuity matters when selecting appropriate interventions; and roadblocks to receiving non-pharmacological interventions.

Bitewing radiography dosimetry of the PORTRAY stationary-intraoral tomosynthesis imaging system.

Objective: This study measured effective (E) and equivalent doses from adult and child 3-dimensional (3D) and 2D posterior bitewing (PBW) examinations using the PORTRAY stationary-intraoral tomosynthesis radiography system.

Study Design: Adult and child phantoms and optically stimulated luminescent dosimeters were used to measure doses for adult-4 and child-2 projection PBW examinations acquired without (W/O) and with (W) a direct digital sensor in the beam path. Child doses without and with thyroid shielding were measured.

GRANTed: Continuing the Legacy of Grant's Anatomy in the Digital Era.

The importance of online learning tools has grown significantly, especially in the field of anatomy which relies heavily on in-person laboratories. To support anatomy learners in remote and in-person contexts, we created an online library of 45 digital three-dimensional cadaveric models matching specimens in and Museum.

International consensus on the non-pharmacological and non-surgical management of osteoporotic vertebral fractures.

Unlabelled: We identified a knowledge gap in the non-pharmacological and non-surgical management of osteoporotic vertebral fractures.

Main Results: This international consensus process established multidisciplinary biopsychosocial recommendations on pain, nutrition, safe movement, and exercise for individuals with acute and chronic vertebral fractures.

Significance: These recommendations will guide clinical practice and inform interventions for future research.

Non-pharmacological management of osteoporotic vertebral fractures: Patient perspectives and experiences.

Objective: To understand perceptions on rehabilitation after vertebral fracture, non-pharmacological strategies, and virtual care from the perspective of individuals living with vertebral fractures.

Design And Setting: We conducted semi-structured interviews online and performed a thematic and content analysis from a post-positivism perspective.

Participants: Ten individuals living with osteoporotic vertebral fractures (9F, 1 M, aged 71  ±  8 years).

Bitewing radiography dosimetry of a stationary intraoral tomosynthesis imaging system.

Objectives: This study assessed effective doses (E) from conventional and stationary intraoral tomosynthesis (s-IOT) radiography for posterior bitewing (PBW) examinations and evaluated the effect of sensor attenuation.

Study Design: An adult human tissue-equivalent phantom and optically stimulated luminescent dosimeters were used. Series of 4 PBW radiographs were acquired with circular and rectangular collimation.

The Effects of Home Exercise in Older Women With Vertebral Fractures: A Pilot Randomized Controlled Trial.

Background: Regular exercise is advocated in osteoporosis guidelines to prevent fractures. Few studies have evaluated the effect of exercise on functional performance, posture, and other outcomes that are important to patients after vertebral fractures.

Objective: This pilot study will explore the effect of home exercise versus control on functional performance, posture, and patient-reported outcome measures.

Are osteoporotic vertebral fractures or forward head posture associated with performance-based measures of balance and mobility?

Unlabelled: The main objective of this study was to explore whether vertebral fracture characteristics or posture is independently associated with physical performance. Posture was significantly associated with physical performance but fracture characteristics were not, suggesting posture should be the focus of physical performance variance.

Purpose: The main objective of this study was to explore whether vertebral fracture characteristics (number, severity, location) or occiput-to-wall distance (OWD) is independently associated with physical performance.

"Left to my own devices, I don't know": using theory and patient-reported barriers to move from physical activity recommendations to practice.

Unlabelled: Knowledge exchange with community-dwelling individuals across Ontario revealed barriers to implementation of physical activity recommendations that reflected capability, opportunity, and motivation; barriers unique to individuals with osteoporosis include fear of fracturing, trust in providers, and knowledge of exercise terminology. Using the Behaviour Change Wheel, we identified interventions (training, education, modeling) and policy categories (communication/marketing, guidelines, service provision).

Introduction: Physical activity recommendations exist for individuals with osteoporosis; however, to change behavior, we must address barriers and facilitators to their implementation.

"We get them up, moving, and out the door. How do we get them to do what is recommended?" Using behaviour change theory to put exercise evidence into action for rehabilitation professionals.

Unlabelled: Recommendations suggest a multicomponent exercise for people with osteoporosis. We identified rehabilitation professionals' barriers and facilitators to implementing exercise recommendations with people with osteoporosis, and used those to make suggestions for targeted knowledge translation interventions. Future work will report on development and evaluation of the interventions informed by our study.

"I do not have time. Is there a handout I can use?": combining physicians' needs and behavior change theory to put physical activity evidence into practice.

Unlabelled: Guidelines for physical activity exist and following them would improve health. Physicians can advise patients on physical activity. We found barriers related to physicians' knowledge, a lack of tools and of physician incentives, and competing demands for limited time with a patient.

Suggestions for Adapting Yoga to the Needs of Older Adults with Osteoporosis.

Background: Exercise such as yoga may have health benefits for older adults with osteoporosis, but without attention to safe movement yoga can also increase the risk for injury.

Objective: The current article provides suggestions for how to adapt yoga to the needs of older adults with osteoporosis.

Suggestions: A general guidelines for exercise is that older adults with osteoporosis should participate in a multicomponent exercise program, including resistance and balance training.

A portable shield for a neutron howitzer used for instructional and research purposes.

Neutron howitzers are routinely used in universities to activate samples for instructional laboratory experiments on radioactivity. They are also a convenient source of neutrons and gammas for research purposes, but they must be used with caution. This paper describes the modeling, design, construction, and testing of a portable, economical shield for a 1.

Too Fit To Fracture: outcomes of a Delphi consensus process on physical activity and exercise recommendations for adults with osteoporosis with or without vertebral fractures.

Unlabelled: An international consensus process resulted in exercise and physical activity recommendations for individuals with osteoporosis. Emphasis was placed on strength, balance, and postural alignment. Rather than providing generic restrictions, activity should be encouraged while considering impairments, fracture risk, activity history, and preference, and guidance on spine sparing techniques should be provided.

Too Fit To Fracture: a consensus on future research priorities in osteoporosis and exercise.

Unlabelled: An international consensus process identified the following research priorities in osteoporosis and exercise: study of exercise in high-risk cohorts, evaluation of multimodal interventions, research examining translation into practice and a goal to examine fracture outcomes.

Introduction: To identify future research priorities related to exercise for people with osteoporosis with and without osteoporotic spine fracture via international consensus.

Methods: An international expert panel and representatives from Osteoporosis Canada led the process and identified opinion leaders or stakeholders to contribute.

Too Fit To Fracture: exercise recommendations for individuals with osteoporosis or osteoporotic vertebral fracture.

Summary: A consensus process was conducted to develop exercise recommendations for individuals with osteoporosis or vertebral fractures. A multicomponent exercise program that includes balance and resistance training is recommended.

Introduction: The aim was to develop consensus on exercise recommendations for older adults: (1) with osteoporosis and (2) with osteoporotic vertebral fracture(s).

Large electronic bandwidth in solution-processable pyrene crystals: the role of close-packed crystal structure.

We examine the interdependence of structural and electronic properties of two substituted pyrene crystals by means of combined spectroscopic probes and density-functional theory calculations. Substituted pyrenes are useful model systems to unravel the interplay of crystal structure and electronic properties in organic semiconductors. To study the effect of steric encumbrance on the crystalline arrangement of two 1,3,6,8-tetraalkynylpyrene derivatives, one features linear n-hexyl side groups while the other contains branched trimethylsilyl groups.

Impact of a centralized osteoporosis coordinator on post-fracture osteoporosis management: a cluster randomized trial.

Unlabelled: We conducted a cluster randomized trial evaluating the effect of a centralized coordinator who identifies and follows up with fracture patients and their primary care physicians about osteoporosis. Compared with controls, intervention patients were five times more likely to receive BMD testing and two times more likely to receive appropriate management.

Introduction: To determine if a centralized coordinator who follows up with fracture patients and their primary care physicians by telephone and mail (intervention) will increase the proportion of patients who receive appropriate post-fracture osteoporosis management, compared to simple fall prevention advice (attention control).

Exercise program to enhance physical performance and quality of life of older hemodialysis patients: a feasibility study.

Objective: Evaluate the feasibility of implementing a combined in-hospital and home-based exercise program in older hemodialysis (HD) patients.

Design: A prospective longitudinal 12-week pilot study.

Setting: A university hospital HD unit and patients' homes.