Supine Sleeping After Total Hip Replacement
OsteoarthritisHip DislocationAim of the current study is to test the non-inferiority hypothesis of differences in early hip dislocation between a group of patients who will be restricted to sleep in supine position and a group without restricted sleeping position during the first eight weeks after a total hip replacement following a posterolateral surgical approach
Efficacy and Satisfaction Comparing Two Braces in the Treatment of Developmental Dysplasia of the...
Hip DislocationCongenital1 moreThe purpose of this study is to 1) evaluate the effectiveness of the Plastizote abduction brace compared to the Pavlik harness in the treatment of developmental dysplasia of the hip (DDH) and 2) compare parent/caregiver satisfaction between the Plastizote abduction brace and the Pavlik harness. The investigators hope to learn which brace treatment is best for a definable population so the appropriate brace can be chosen initially avoiding the time, expense, and frustration of a failed technique.
A Clinical Trial Study of Hip System in Primary Total Hip Arthroplasty in China
Rheumatoid ArthritisCongenital Hip Dysplasia1 moreA clinical trial of total Hip system used in Primary Total Hip Arthroplasty in China.
A Randomised Single Centre Study to Compare the Long-term Wear Characteristics of Marathon™ and...
OsteoarthritisPost-traumatic Arthritis6 moreThe purpose of this study is to compare the performance and compare the wear characteristics of two polyethylene cup liners, Marathon™ and Enduron™, in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be randomly allocated to one of the polyethylene cup liners, Marathon™ or Enduron™ and will be evaluated at regular intervals using clinical and x-ray assessments.
Functional Capacity After Computer Assisted Periacetabular Osteotomy in Patients With Hip Dysplasia...
Hip DysplasiaPathogenesis of hip dysplasia Hip dysplasia is multifactorial in origin influenced by genetic and intrauterine factors, such as mechanical (rump presentation and oligohydramnios) and hormonal factors1. To ease the passage through the birth canal, the hip joint is quite mobile perinatally. Postnatally, the laxity of the ligaments will subside and the femoral head will normally position itself deeply in the acetabulum2. The theory is that if the femoral head does not migrate sufficiently into the acetabulum, dysplasia may develop because the matrice to stimulate acetabular growth is not correctly positioned. Normally, at birth the femoral head sits deep in the acetabulum held by surface tension of the synovial liquid. The growth and the hemispherical morphology of acetabulum are dependent on the presence of a normally growing and correctly placed spherical femoral head that works as a convex matrice. If for some reason the normal development is disturbed pre- or postnatally, pathologic relations may develop between the femoral head and the acetabulum3, leading to hip dysplasia. Purpose of this research project is to investigate if the correction of the acetabulum is accurately performed when the surgeon use navigation equipment during PAO.
Efficacy of Aquamantys for Reducing Transfusions With Anterior Supine Intermuscular Approach Total...
OsteoarthritisHip7 moreThe purpose of this study is to establish whether or not there is a clinical advantage to the use of Aquamantys® System from Medtronic Advanced Energy (formerly Salient Surgical Technologies) in patients undergoing primary total hip arthroplasty via the anterior supine intermuscular surgical approach in terms of blood loss, transfusion and wound healing. Wound healing will be assessed by a blinded observer and based upon a simple and subjective criteria: a) as expected, b) better than expected or c) worse than expected. The blinded observer is experienced in the care of the surgical patient and wound evaluation.
A Study to Assess the Long-term Performance of SmartSet® HV and SmartSet® GHV Bone Cements in Primary...
Rheumatoid ArthritisOsteoarthritis7 moreThe purpose of this study is to monitor the performance of artificial hip joints implanted with two different bone cements, SmartSet® HV and SmartSet® GHV, in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be randomly allocated to SmartSet® HV or SmartSet® GHV and will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments
Treatment for Mild Hip Dysplasia in Newborns
Developmental Dysplasia of the HipDevelopmental dysplasia of the hip is the most common musculoskeletal disorder in infancy, with a reported prevalence of 2% of all newborns. Although newborn screening programs based on clinical examination with Ortolani and Barlow tests were introduced in the 1950's and 1960's with early abduction splinting of the 2% testing positive, the prevalence of late cases warranting surgery has remained stable, around one per 1000. This has led to the introduction of ultrasound as an additional diagnostic tool, resulting in treatment rates of until 5-6%. This three fold increase in abduction splinting treatment is partly due to the initiation of treatment of infants in whom mild hip dysplasia but no hip instability has been identified. The benefit of early treatment of mild dysplasia in a hip that is neither dislocated nor dislocatable is unclear. Further, abduction splinting is not without risk, with avascular necrosis being reported in around 1%. The investigators conducted a masked, randomized, controlled trial to examine whether mildly dysplastic but stable or instable hips would benefit from early treatment, as compared to watchful waiting.
Periprosthetic Bone Mineral Density After Total Hip Arthroplasty Performed Through a Minimally Invasive...
OsteoarthritisArthritis3 moreThis is a monocentric, prospective, randomized clinical survey to verify if the periprosthetic remodelling brought about either the AMIStem or the Quadra femoral component is equivalent.
Investigation of Efficacy of Use of a Bandage
Hip DislocationThis trial investigates the effectiveness of using a bandage after dislocation of the hip after total hip arthroplasty. Patients with a dislocated hip after total hip arthroplasty coming to the emergency department to have the hip relocated will be asked to participate in the trial. The patients will be randomised to either a bandage that reduces flexion, adduction and internal rotation of the hip or no bandage.