Thesis
Patient specific approach to computer modelling of the human knee joint
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2002
- Thesis identifier
- T10566
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- Computer assisted and image guided technologies have been used for a number of years in the manufacturing industry and entertainment but recently they have found new applications in medicine and, specifically, orthopaedic surgery. New surgical technologies combine medicine, robotics, computer science and engineering and are applied to a broad range of clinical problems. A goal of the development of these technologies is to develop more precise and less invasive smart tools to assist in the actual measurement and performance of a surgical task. The analysis of gait is important in defining the clinical condition of a subject. By recording a subjects gait before and after surgical intervention, analysis of the outcome due to surgery can be calculated from improvement in function. A comparison of the functional improvement of subjects can be used to evaluate the improvement of new technologies over the classical technique. The aims of this study are to form a 3-dimensional model of an individual subject’s knee joint. The model will then be animated and subsequently gait data recorded from the subject will be introduced to produce a unique animation of the movement of the subjects knee joint. The knee model was formed from Computed Tomography (CT) scans of the subject’s leg from below the tibial plateau to above the pelvis. The CT data is an ideal medium for identifying the structure of bone from the surrounding soft tissue. An edge-detecting software package, SURFdriver, was used to build up the model using individual slices. The SURFdriver package was very straightforward and the user interface provided comprehensive features to build 3D anatomical models. The key movement factors (walk, run and climb) to be used to animate the model were recorded from the subject in the gait laboratory. The importation of the model into Easymodel was accomplished and movement of the bones achieved but no animation was produced. The importation of the bones of the knee joint involved separately modelling the bones and saving them as a group file. Future work using the data and the model to produce the unique animation of the subject carrying out movements can now be realised.
- Advisor / supervisor
- Nicol, Sandy
- Resource Type
- DOI
- Funder
- Embargo Note
