In vivo verification of different hip joint center estimation methods in gait analysis for healthy subjects

Download

index.pdf

Date

2014

Author

Yousefi, Abdollah

Metadata

Show full item record

Item Usage Stats

121
views

37
downloads

Hip joint is one of the most stable joints in human body. It has intrinsic stability provided by its relatively rigid ball and socket configuration. The hip joint also has a wide range of motion, which allows normal locomotion and daily activities. Location of hip joint center (HJC) is an important parameter in gait analysis, biomechanical and clinical research laboratories to calculate human lower extremity kinematics and kinetics. There exists different methods to determine HJC. Although invasive methods like radiography, computed tomography, magnetic resonance imaging (MRI) and the like may be used to determine the location of HJC, in gait analysis laboratories, non-invasive functional and/or predictive methods are generally found to be more advantageous. METU gait analysis system, utilizes one of the predictive methods, the Davis method (1991) to determine hip joint center location. Kafalı (2007) adopted two functional methods of hip joint center estimation to the system and evaluated the results with respect to Davis method. This thesis aims to experimentally verify different HJC estimation methods with those obtained from MRI in healthy subjects for the purpose of demonstrating and validating the contribution of MRI procedure in METU gait analysis system. Also combination of Bell’s (1990) second method in posterior (x) direction, Davis (1991) method in distal (y) direction and Bell’s (1990) second method in medial (z) direction was analyzed and the results were criticized for the accuracy.

Subject Keywords

Hip joint., Artificial hip joints., Human physiology., Gait in humans., Human locomotion., Human mechanics., Biomechanics.

URI

http://etd.lib.metu.edu.tr/upload/12616928/index.pdf
https://hdl.handle.net/11511/23344

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

In vitro and in vivo evaluation of doxycycline-chondroitin sulfate/PCLmicrospheres for intraarticular treatment of osteoarthritis AYDIN, Ozlem; KORKUSUZ, FEZA; KORKUSUZ, PETEK; Tezcaner, Ayşen; BİLGİÇ, ELİF; Yaprakci, Volkan; Keskin, Dilek (2015-08-01) Osteoarthritis (OA) is a degenerative joint disease, which has no complete treatment with medication yet. Intraarticular hyaluronan (HA) injection can decrease pain and modify the natural course of OA. This study was designed to provide long term delivery of an MMP (matrix-metalloproteinase) inhibitor agent-doxycycline, together with matrix regenerative agent-chondroitin sulfate for treating OA which progress with matrix degenerations. Doxycycline (D) and doxycycline-chondroitin sulfate (D-CS) loaded poly--...
The Somatosensory and vestibular interaction in human postural control Akçay, Mustafa Emre; Özgören, Mustafa Kemal; Gürses, Senih; Department of Mechanical Engineering (2015) Human upright posture is essential for people during daily activities. Upright posture is a skill, which is acquired before walking during the human development. Classically defined five senses (as the sense of kinesthesia is not included) are not enough to obtain this difficult and important skill. Thus, the humans need another group of senses; i.e., proprioception, vestibular sensor, joint receptors etc. to achieve the upright posture. In this thesis, two distinct stimulations were given to the subjects t...
The effect of hip rotation on bone mineral density of the proximal femur measured by dual energy X-ray absorptiometry Celik, Oezguer; Salci, Yasar; MANİSALI, METİN; Korkusuz, Feza (2009-01-01) Objectives: The aim of this study was to compare the effect of lower extremity position changes on hip bone mineral density measured by dual energy X-ray absorptiometry.
In vitro evaluation of effects of sustained anti-TNF release from MPEG-PCL-MPEG and PCL microspheres on human rheumatoid arthritis synoviocytes Erdemli, Ozge; Özen, Seza; Keskin, Dilek; Usanmaz, Ali; Batu, Ezgi Deniz; Atilla, Bülent; Tezcaner, Ayşen (2014-10-01) Anti-tumor necrosis factor (TNF) drugs such as etanercept (ETN) have been mostly used in systemic treatment of rheumatoid arthritis. To eliminate the side effects in long-term treatments and to achieve a local sustained anti-inflammatory effect, a controlled drug delivery system is needed for anti-TNF drugs. This study aims to develop novel injectable microcarriers of ETN that can provide long-term controlled release of this protein drug upon intra-articular application. In this study, poly(epsilon-caprolac...
Biodegradable hydroxyapatite - Polymer composites Durucan, Caner (2001-04-01) The fracture of bone due to trauma or due to natural aging is one of the most frequent types of tissue failures. Treatment frequently requires the implantation of ct temporary or permanent prosthesis. The implanted materials may include the components of artificial joints, plates, and screws for fracture fixation. Typically, such implants are intended only to provide structural support or to serve as templates for bone re-growth. In general they are intended to remain in place for the life of the patient or...

Citation Formats

A. Yousefi, “In vivo verification of different hip joint center estimation methods in gait analysis for healthy subjects,” M.S. - Master of Science, Middle East Technical University, 2014.