Publication Date


Document Type


Committee Members

Ping He (Advisor), David Reynolds (Advisor)

Degree Name

Master of Science in Engineering (MSEgr)


A controversy has long existed about an alternate below knee amputation procedure that may be more beneficial than the traditional transtibial amputation. The proponents of this alternate procedure that stabilizes the distal tibia and fibula claim it reduces excessive movement of the fibula relative to the tibia that occurs with common movements, such as walking. The purpose of this study is to develop a methodology for quantifying excessive movement of the fibula bone relative to the tibia bone in traditional below the knee amputations. The methodology will measure the movement and rotation of the fibula relative to the tibia. These results can be compared to the bone movement from below the knee distal tibiofibular fusion procedure in order to observe if the excessive movement has been reduced. Matlab was used to analyze CT data from a traditional transtibial amputation subject and a distal tibiofibular fusion subject under four loading conditions. Distance and rotation measurements were collected using preexisting and generated Matlab programs. The measurements include locations from several regions on the limb to try to establish a trend for motion. A repeatable methodology with high precision was developed to quantify the movement of the fibula relative to the tibia for both distance and rotation measurements; the average standard deviation for distance measurement is 0.374 mm and the average standard deviation for rotation measurement is 0.131 degrees.

Page Count


Department or Program

Department of Biomedical, Industrial & Human Factors Engineering

Year Degree Awarded