Background: Recently, patient-specific instrumentation (PSI) systems have been developed in order to increase theaccuracy of component positioning during total knee arthroplasty (TKA); however, the findings of previous studies arecontroversial in this regard. In the current randomized clinical study, the outcomes of computer tomography (CT)-basedPS (patient specific)-guided TK...

A patient specific finite element biphasic brain model has been utilized to codify a surgeon's experience by establishing quantifiable biomechanical measures to score orientations for optimal planning of brain tumor resection. When faced with evaluating several potential approaches to tumor removal during preoperative planning, the goal of this work is to facilitate the surgeon’s selection of a...

Prevention has been a main issue of recent policy orientations in health care. This renews the interest on how different organizational designs and the definition of payment schemes to providers may affect the incentives to provide preventive health care. We focus on the externality resulting from referral decisions from primary to acute care providers. This makes our analysis complementary to ...

background religion and health have recently received much attention in modern medicine. several studies in various parts of the world have supported the role of religion as a protective factor against mental disorders. one of the common traumas in the field of mental health is suicidal behaviors. adherence to religious beliefs plays an important role in preventing suicidal behaviors. objective...

introduction: marital satisfaction is a positive relationship with spouse’s family, positive dynamism in the original family, self-esteem and religious homogeneity of couples. religion is one of the most effective spiritual fulcrums that are able to provide the meaning of life in every moment of life. religious beliefs and credence are important factors in marital satisfaction. the main purpose...

BACKGROUND Diagnosis and treatment of cancer can contribute to psychological distress and anxiety amongst patients. Evidence indicates that information giving can be beneficial in reducing patient anxiety, so oncology specific information may have a major impact on this patient group. This study investigates the effects of an orientation program on levels of anxiety and self-efficacy amongst ne...

currently, cosmetic surgery is spread around the world. several factors are involved in this rapidly evolving field such as socio-economic development, changes in cultural norms, globalization and the effects of western culture, advertising, media, and mental disorders. nowadays the cosmetic surgery is becoming a profitable business, which deals exclusively with human appearance and less from t...

Acetabular component orientation is influenced not only by the orientation at which the surgeon implants the component but also the orientation of the pelvis at the time of impaction. Hence, the orientation of the pelvis at set-up and its movement during the operation are critically important. Using a validated photogrammetric technique, during 67 hip arthroplasties, we measured how 3 surgeons ...

Our perception of regional irregularity, an example of which is orientation variance, seems effortless when we view two patches of texture that differ in this attribute. Little is understood, however, of how the visual system encodes a regional statistic like orientation variance, but there is some evidence to suggest that it is directly encoded by populations of neurons tuned broadly to high o...