Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 88 for “"hip joint"”.
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Loading of total hip joint replacements
Der totale Hüftgelenkersatz zählt zu den erfolgreichsten Operationen in der Endoprothetik. Jedoch ist das Patientenspektrum in den letzten Jahren immer jünger und aktiver geworden. Dadurch ist der Anspruch im Hinblick auf die Belastbarkeit und Lebensdauer dieser Implantate gestiegen. Bezüglich …
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Locating the hip joint centre using ultrasonic techniques
Locating the Hip Joint Centre (HJC) is crucial for gait analyses. These studies allow for precise calculation of both kinetic and kinematic parameters, which are required for determining the forces and moments around the hip. However, unlike the knee and ankle joints of the lower limb, which can be …
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Location of the hip joint centre using ultrasonic techniques
… to accurately determine these parameters, the hip joint centre (HJC) must first be located. The accuracy with which it is located directly affects the estimated magnitude of these parameters; yet current techniques still give inaccurate results.This study was therefore aimed at exploring the …
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Stress in the cartilage of the human hip joint
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1983.
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Measurement of pressure distribution in the human hip joint.
Thesis (M.S.)--Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1967.
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Abrasion-corrosion of cast CoCrMo in simulated hip joint environments
Metal-on-metal (MoM) hip joint replacements have been increasingly used for younger and more active patients in recent years due to their improved wear performance compared to conventional metal-on-polymer bearings. MoM bearings operate at body temperature within a corrosive joint environment and …
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Traumatic posterior fracture-dislocation of the hip joint in adults
… 1998 surgery was carried out on seventy-six hips in seventy-five patients that sustained posterior fracture-dislocation of their hip joints. During my training I was personally involved in thirteen of these cases and was the primary surgeon in seven cases. Because of my personal interest in …
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Decreasing Error in Functional Hip Joint Center Calculation using Ultrasound Imaging
The hip joint center (HJC) is needed for calculation of hip kinematics in various applications. In the functional method, the center is determined by moving femur with respect to acetabulum. A popular way for measuring this movement is through an optical motion capture system. This method is fast …
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3D Analysis Of The Hip Joint For The Prediction Of Osteoarthritis
Hip osteoarthritis is an increasingly important cause of morbidity in the ageing population causing pain, disability and loss of function through joint failure. It has an estimated lifetime risk of 25%. While the contribution of skeletal morphology to disease is now established, the lack of imaging …
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Finite Element Model of the Pediatric Hip Joint During the Barlow Maneuver
<p>Developmental Dysplasia of the Hip is the dysplasia or dislocation of an unstable femoral head in the acetabulum of the pelvis. This is a result of an abnormal or underdeveloped growth of the acetabulum and triradiate cartilages and/or an out of place and uncentered femoral head in the …
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Development of high performance tribological coatings for application onto hip joint prostheses
… of amorphous carbon coatings can improve wear of hip joint prostheses, although consideration must be made for the adhesion of the coating to the substrate so that it does not contribute to an early failure of the device. Improved adhesion can be achieved by reducing the hardness differential …
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Pressure distribution on the human hip joint In vivo and selection of hemiarthroplasty
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1980
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Preparation of bioactive surface via gel oxidation on titanium for biomedical application (hip joint replacement)
Titanium and its alloys are widely used as implant in biomedical applications. They have good mechanical and chemical properties, biocompatibility and biointegration with human body, but they have no ability to bond directly to natural bone. Therefore, alkali and heat treatments (gel oxidation) …
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Hip joint forces in hip replacement patients and normal subjects during activities of daily living
A high number of revision hip replacement operations are currently performed due to loosening of the primary implant. The loading imposed on the prosthetic joint and its fixation mechanisms may be one of the many factors contributing to the loosening process. Previous work to determine hip joint …
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Evalution of a Model for Experimentally-Induced Osteoarthritis in the Hip Joint of the Dog
… inflammatory changes were discernible in the joint capsule of some dogs in both groups. A trend toward more severe change was present in the left hip of the treatment group, but statistically significant difference was noted only when comparing the right and left legs of the acetabular …
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