OBJECTIVE The aim of this study was to detect the incidence of estrogen receptors in human hip joint capsule and ligamentum teres. METHODS The study included biopsies of the ligamentum capitis femoris (LCF) and hip joint capsule from 15 patients undergoing hip surgery for developmental dysplasia of the hip (DDH) and from the control hips of 15 cases of intrauterine fetal death. Mean age was 1...

In experiments investigating vertical squat jumping, the HAT segment is typically defined as a line drawn from the hip to some point proximally on the upper body (eg, the neck, the acromion), and the hip joint as the angle between this line and the upper legs (θUL-HAT). In reality, the hip joint is the angle between the pelvis and the upper legs (θUL-pelvis). This study aimed to estimate to wha...

Introduction & Objectives: The aim of this study was to evaluate the effect of strengthening the abductor and external rotator of the hip joint muscles on pain, thigh muscle strength, and lower limb kinematics in volleyball players with patellofemoral complications. Materials and Methods: Twenty-four volleyball players with patellofemoral pain were randomly divided into the experimental and co...

Background Hip dysplasia is an abnormality of the hip joint where the socket portion does not fully cover the ball portion, which might increase the risk of joint dislocation. Hip dysplasia may occur at birth or develop in early life. The purpose of the present study was to assess the effect of treatment with Tübingen hip flexion splint for Dev...

Hip joint instability and impingement are the most common biomechanical risk factors that put the hip joint at risk to develop premature osteoarthritis. Several surgical procedures like periacetabular osteotomy for hip dysplasia or hip arthroscopy or safe surgical hip dislocation for femoroacetabular impingement aim at restoring the hip anatomy. However, the success of joint preserving surgical...

PURPOSE To define the centre of the hip joint and the bone stock around the hip joint from the supra-acetabular portion or pelvic brim so as to avoid penetration of guidewire into the hip joint when performing internal fixation using the anterior approach. METHODS A total of 42 cadavers were utilised. Measurements were completed before and after cutting the pelvis into 4 pieces. Before cuttin...

In the single-joint torque exertion task, which has been widely used to control muscle activity, only the relevant joint torque is specified. However, the neglect of the neighboring joint could make the procedure unreliable, considering our previous result that even monoarticular muscle activity level is indefinite without specifying the adjacent joint torque. Here we examined the amount of hip...

Objective—To study the prevalence of ultrasonic hip joint eVusion and its relation with clinical, radiological and laboratory (ESR) findings in adults with hip pain. Methods—Patients (n=224) aged 50 years or older with hip pain, referred by the general practitioner for radiological investigation, underwent a standardised examination. The distance between the ventral capsule and the femoral neck...

Five patients with rheumatoid arthritis and no previous hip joint disease developed an acute disabling arthritis in one hip joint. Roentgenograms were negative and synovial fluid from the hip joint was inflammatory, but no crystals were seen and cultures were negative. Four of the five patients responded rapidly to intra-articular corticosteroids, and none of the five has had further hip joint ...

BACKGROUND Understanding the magnitude and direction of joint forces generated by hip strengthening exercises is essential for appropriate prescription and modification of these exercises. The purpose of this study was to evaluate hip joint forces created across a range of hip flexion and extension angles during two hip strengthening exercises: prone hip extension and supine hip flexion. METH...