This paper presents a novel approach for multi-organ (musculoskeletal system) automatic registration and segmentation from clinical MRI datasets, based on discrete deformable models (simplex meshes). We reduce the computational complexity using multi-resolution forces, multi-resolution hierarchical collision handling and large simulation time steps (implicit integration scheme), allowing real-t...

BACKGROUND AND PURPOSE Total hip replacement (THR) with a reverse hybrid (RH), a combination of a cemented polyethylene cup and a cementless femoral stem, has been increasingly used in Scandinavia. In a randomized trial, we compared an RH THR with a proximal hydroxyapatite- (HA-) coated stem to a conventional cemented THR. Both groups received the same polyethylene cup. PATIENTS AND METHODS 5...

BACKGROUND Reliability of the Actigraph GT3X+ accelerometer has not been determined under normal wear time criteria in a large sample of subjects and accelerometer units. The aim of this study was to assess contralateral hip difference and inter-instrument reliability of the Actigraph GT3X+ monitor in adults under long-term free-living conditions. METHODS Eighty-seven adult subjects (28 men; ...

 Abstract Background: Osteoporosis is a major public health threat, and hip fracture is a serious consequence of osteoporosis. Apatient with an osteoporosis-related hip fracture has an increased risk for a second hip fracture. The effect of osteoporosis management on the risk of recurrent hip fracture was evaluated in this study. Methods: 58 hip fracture patients older than 50yr and BMD < 2.5 w...

Background. Hemipelvectomy amputation is a surgical procedure in which lower limb and a portion of pelvic are removed. There are a few studies in the literature regarding the performance of subjects with hip disarticulation during walking. However, there is no study on gait analysis of hemipelvectomy subject. Therefore, the aim of this paper was to evaluate the gait and stability of subject wit...

Describe the most common techniques used for minimally invasive hip surgery. Certainly the most commonly described approaches in the literature are the posterior and direct anterior. The posterior approach is essentially the same as what surgeons have done traditionally but with a shorter incision and less dissection of the deep musculature. The 2-incision approach, which I prefer, has fallen o...

In the present study, the effects of repetition on the kinematics in discrete lifting were studied in 10 subjects who lifted a barbell weighing 10% of body mass at a determined speed and along a determined trajectory 630 times during about 40 min. Three-dimensional (3-D) kinematics of the feet, lower and upper legs, pelvis, and trunk were recorded in the first 3 and the final 3 lifting movement...

INTRODUCTION The aim of this study is to determine whether postoperative delirium is associated with dysregulation of hypothalamic-pituitary-adrenal and growth hormone/insulin-like growth factor 1 (GH/IGF-1) responses following acute systemic inflammation. METHODS Plasma levels of cortisol, IGF-1, C-reactive protein, interleukin (IL)-6, IL-8, and IL-10 were measured before and after surgery i...

Objective To evaluate the correlation between radiographic parameters of the proximal femur with femoral neck fractures or transtrochanteric fractures. Methods Cervicodiaphyseal angle (CDA), femoral neck width (FNW), hip axis length (HAL), and acetabular tear drop distance (ATD) were analyzed in 30 pelvis anteroposterior view X-rays of patients with femoral neck fractures (n = 15) and transtr...