BACKGROUND The risk factors for developmental dysplasia of the hip (DDH) in infants from unifetal pregnancies are commonly known. Many of these factors also apply to multiple pregnancies. The aim of this paper was to evaluate the influence of selected, widely recognized DDH risk factors in unifetal pregnancy on the development of hip joints in infants from multiple pregnancies. The following ri...

Comprehensive gait analysis of patients with Crowe type II and III developmental dysplasia of the hip (DDH) after successful total hip arthroplasty (THA) is lacking in the literature. This study evaluated gait function in joint kinematics after unilateral and bilateral THA in patients with DDH. In addition, the effect of high cup position on gait function was investigated. A total of 16 unilate...

Background: During infancy, among developmental abnormalities of the hip joint, a broad-spectrum anomaly is dysplasia (DDH). To examine this abnormality, no standardized screening protocol available. Clinical examination most frequently followed, and in doubtful cases, ultrasound (US) used to confirm diagnosis. Aims: The present study aims compare sensitivity specificity clinical US neonatal de...

Sacral agenesis (SA) is a rare condition consisting of the imperfect development of any part of the sacrum. This paper describes two cases of the rare cooccurrence of ipsilateral SA and developmental dysplasia of the hip (DDH) and analyzes possible contributory factors for SA and DDH. Each of a 16-year-old female and 13-year-old female visited our hospital for left hip pain and limping. The fin...

Developmental hip dysplasia (DDH) is characterized by an anomalous growth of the hipjoint. Without adequate treatment, the natural history of DDH is development of secondary osteoarthritis in adulthood. The correction of the deformities modifies the biomechanics of the hip, which is important in order to slow down the progression of osteoarthritis and maybe to prevent and postpone this developm...

BACKGROUND In Mongolia, adequate early diagnosis and treatment of developmental hip dysplasia (DDH) have been unavailable and its incidence was unknown. We determined the incidence of ultrasonographic DDH in newborns and established adequate procedures for diagnosis and treatment of DDH at the largest maternity hospital in Ulaanbaatar, Mongolia. METHODOLOGY/PRINCIPAL FINDINGS During one year ...

Long-term follow-up studies on children with surgically treated developmental dysplasia of the hip (DDH) have shown that not only affected side progresses to premature osteoarthritis, but unaffected may also suffer from insidious or osteonecrosis. The current gait analysis study identified loading and unloading rates ground reaction forces (GRF) lower limb joint axial during gait, their correla...

BACKGROUND Developmental dysplasia of the hip (DDH) always leads to cartilage degeneration and osteoarthritis of the hip joint. However, the diagnosis of early cartilage degeneration in DDH is still a clinical challenge. This study aims to investigate the dynamic changes of bone and cartilage in the hip of a rat model of DDH and to explore the potential application of microcomputed tomography (...

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...

Avascular necrosis (AVN) of the proximal femoral epiphysis is an iatrogenic complication of treatment for developmental dysplasia of the hip (DDH), and does not occur during the natural history of the untreated hip. The objective is to produce a congruous concentric joint and minimize premature degenerative disease and disability during young adult life, by achieving early reduction of the hip ...