Master of Science
Total knee arthroplasty (TKA) is a common procedure for the treatment of advanced knee osteoarthritis. Complications involving the patellofemoral joint (PFJ) are common following TKA, and the etiology is controversial. The purpose of this thesis was to evaluate two potentially modifiable factors affecting the PFJ: (i) changes in patellofemoral offset (PFO) and (ii) trochlear design.
Through a retrospective radiographic review, we demonstrated that PFO changes occur frequently post-TKA, and that the PFJ can tolerate these changes without adverse clinical outcomes. Retrieval analysis provided additional evidence that PFO changes are not associated with femoral component surface damage or wear.
In order to explore the association between trochlear design and patellofemoral contact, retrieved femoral components were examined. The retrieval studies showed that some trochlear designs are associated with increased femoral component surface wear. This information improves our understanding of patellofemoral contact mechanics and trochlear wear.
Matz, Jacob, "Evaluating the Effects of Patellofemoral Offset Changes and Trochlear Design in Total Knee Arthroplasty: A Radiographic, Visual, and Topographical Analysis" (2016). Electronic Thesis and Dissertation Repository. 4050.