Active clinical trials for "Developmental Dysplasia of the Hip"

The purpose of this study is to examine the movement pattern in patients with hip dysplasia preoperative, six and 12 month after minimally invasive approach for Periacetabular osteotomy (PAO). Secondary to examine the movement pattern in patients compared to healthy controls and historical data.

Ultrasound imaging (US), a radiation-free imaging modality, is currently used in diagnosis of developmental dysplasia of the hip (DDH) in infants. The current protocol involves manually identifying specific measures that are prone to error, and may give rise to false positives. We aim to use 2-dimensional (2D) and 3-dimensional (3D) ultrasound imaging to create an automatic measurement procedure that we hope will reduce the errors in measurement and increase reliability.

A retrospective study evaluating clinical and radiographic early outcomes of total hip arthroplasty and revision hip arthroplasty with DELTA Multihole TT cup.

All newborn from the period 12.1988 to 31.12.2006 During the two last decades, hip ultrasound has gained acceptance as an accurate screening test for developmental dysplasia of the hip (DDH) and for monitoring the development and treatment of the condition. Debate continues over whether DDH that is detected by ultrasonography is necessarily clinically relevant. The diagnostic accuracy of ultrasound imaging for DDH in the screening population has not been investigated adequately. Studies that investigate the natural course of the disorder, the optimal treatment for DDH, and the best strategy for ultrasound screening are needed. Ultrasound screening at birth for DDH in all newborn infants is standard practice in some European countries but not in the United Kingdom, the United States, or Scandinavia. Evidence is insufficient to support or reject general ultrasound screening of newborns for DDH. (N.F.Woolacott etc 2006, systematic review BMJ) At Vestre Viken HF, Kongsberg, Norway, the investigators implemented universal ultrasound screening in 1998. We will present the long term outcome, including radiographs of the hips after 5-12 years.

The aim of this study is to prove the improvement of pubo-femoral distance by early abduction splintage in one-month-old infants with developmental dysplasia of the hip (with a clinical stable hip but an abnormal hip ultrasonography).

Closed reduction is where the thigh bone is placed into the socket without any surgical incision being made. This is more likely to be performed in a child under the age of four year. The femoral head is gently manipulated into the socket, whilst the child is under anaesthetic. Once the femoral head is in place, a hip Spica is applied and can remain in place for up to three months to maintain the hip in the correct position. This allows time for healing and for the socket and the thigh bone to mould together as a joint. The purpose of this study was to identify and evaluate risk factors of avascular necrosis (AVN) after closed treatment for developmental dysplasia of the hip (DDH). assessed according to Salter's classification system.

Steel triple innominate osteotomy was designed for dysplastic hip in adolescents and young adults with three incisions to increase the coverage; however the amount of correction remained questionable due to ligamentous attachments that hinder the rotation. The investigators modified the technique with two anterior incisions and ramus cuts close to inferior acetabulum. The purpose of this study is to compare these two techniques in femoral head coverage

One of the leading causes of hip arthritis is developmental dysplasia of the hip (DDH). DDH can lead to major damage in the hip joint and may result in hip arthritis later in life. Patients recruited into this study will be undergoing corrective hip surgery within the next 6 months with a goal of preventing further hip problems down the road. This study is being done to see how well a newer type of Magnetic Resonance Imaging (MRI) detects hip cartilage damage compared to an older but well validated MRI method.

Acetabular dysplasia often accompanies by acetabular bone hyperplasia and osteonecrosis of the femoral head. These pathological changes can alter the position of the center of the femoral head. Thus, measurement errors will be generated on the anteroposterior radiographs of the adult pelvis involving centre-edge angle, acetabular angle (Sharp angle), and acetabular head index, eventually resulting in the inaccurate diagnosis of acetabular dysplasia. Herein, the investigators describe the protocol to verify three novel X-ray indicators, including offshoring index (OFI), moving up index (MUI) and teardrop baseline offshoring index (TBOI) of the femoral head. All data will be expressed as relative ratios, as the investigators expect to make an accurate diagnosis through avoiding the generation of errors resulting from measurement angles.