Obstacles facing evidence based medicine in physical medicine and rehabilitation: from opinion and knowledge to practice.

Background: Evidence-based medicine (EBM) is a new approach to medicine which can guide clinical services toward effective and beneficial results with the least side effects or errors. Up to now, there have been few available articles about specialists' EBM status, specifically the status of physiatrists in the area of EBM.

Objective: To determine the present status of physiatrists' attitudes, knowledge and skill in the area of EBM and the existing obstacles.

The Impact of Dynamic Seating on Classroom Behavior of Students with Autism Spectrum Disorder.

Objective: Children with autism have sitting and on-task behavior problems in class. In this study, the effect of three alternative classroom-seating devices such as regular classroom chairs, therapy balls, and air cushions were examined on students' classroom behavior.

Materials & Methods: 15 students with autism participated in this A1-B-A2-C multiple treatments study from Mashhad's Tabasom School, Mashhad, Iran in 2014.

Knee Osteoarthritis Injection Choices: Platelet- Rich Plasma (PRP) Versus Hyaluronic Acid (A one-year randomized clinical trial).

Introduction: Knee osteoarthritis (OA) is the most common articular disease. Different methods are used to alleviate the symptoms of patients with knee OA, including analgesics, physical therapy, exercise prescription, and intra-articular injections (glucocorticoids, hyaluronic acid [HA], etc). New studies have focused on modern therapeutic methods that stimulate cartilage healing process and improve the damage, including the use of platelet-rich plasma (PRP) as a complex of growth factors.

Is Platelet-rich plasma superior to whole blood in the management of chronic tennis elbow: one year randomized clinical trial.

Background: Lateral humeral epicondylitis, or 'tennis elbow', is a common condition with a variety of treatment options. Platelet-rich plasma (PRP) and Autologous Whole Blood (AWB) represent new therapeutic options for chronic tendinopathies including tennis elbow. The aim of the present study was to compare the long term effects of PRP versus autologous whole blood local injection in patients with chronic tennis elbow.