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Conferences and Events

The Patellofemoral Foundation partnered with the Arthroscopy Association of North America for the 4th Patellofemoral Surgery: From Instability to Arthroplasty Course at the Orthopaedic Learning Center in Rosemont, IL, on September 11 and 12, 2015. The event was the first patellofemoral-focused course offered at the new, world-class training facility, and marked the foundation’s 4th ”sold-out” instructional course.

Master instructors for the course were PFF founder John Fulkerson, MD (Farmington, CT), Jack Farr, MD (Indianapolis, IN), Jason Koh, MD (Evanston, IL), Andrew Cosgarea, MD (Baltimore, MD), and William Post, MD (Morgantown, WV). An additional 14 instructors from across the United States assisted with the “hands on” lab sessions that allowed participants to learn and demonstrate surgical skills with close guidance from experienced surgeons whose practices include an emphasis on patellofemoral related issues. The agenda featured lectures, case presentations, the surgical skills lab, as well as quality time to interact with world renowned experts on the topic.

Dr Fulkerson commented,” I am impressed with the interest and commitment of surgeons to learn more about the complexities of treating the patellofemoral joint. The discussion, demonstrations, and skills application of the techniques comfirmed the need and interest within the orthopaedic community for ongoing courses focused on identifying problems and treating the patellofemoral joint.”

The Patellofemoral Foundation is a non-profit 501 (c)(3) organization whose goal is to improve care of individuals through targeted education and research. The Foundation strives to achieve their goals through the generous donations of individuals and corporations. Executive Director Eric Dahlinger stated “that the organization has accomplished a great deal as it has grown over the years by sponsoring  travelling fellowships and research to recognizing quality patellofemoral focused research and lifelong accomplishments.”

More information can be found at

2014 Orthopedic Learning Center

Posted by on in Conferences and Events


The 2014 Orthopedic Learning Center hands on cadaver surgery course was held February 28-March 1, 2014 in Rosemont IL. 38 participants and over 20 faculty participated and refined PF surgery skills on cadaver knees.

2013 Orthopedic Learning Center

Posted by on in Conferences and Events


The 2013 Orthopedic Learning Center course was sold out with 48 orthopedic surgeons attending April 12 and 13, 2013 in Rosemont, Illinois, at the Orthopedic Learning Center. All of these surgeons learned indications and techincal skills for several key patellofemoral surgery procedures. Participants uniformly reported a very favorable experience. The course was co-sponsored by the Patellofemoral Foundation and the Arthroscopy Association of North America

The PF foundation co-sponsored (with the Arthroscopy Association of North America) a hands-on cadaver PF surgery course at the Orthopedic Learning Center in Rosemont, Illinois on January 20 and 21, 2012 for orthopedic surgeons. Despite a snowstorm, 39 participants and 20 instructors showed up for this "first ever" hands on PF Surgery Course. The next course is being planned for April 12-14, 2013.

8th Biennial ISAKOS Congress • Rio De Janeiro, Brazil • May 15-19, 2011

Patellofemoral Research Excellence Award
The Geometry and Function of the Patellofemoral Joint
Farhad Iranpour, United Kingdom

The purpose of this study was to explore the patellofemoral joint in 3 dimensions, looking at its geometry, motion and stability.


The purpose of this study was to explore the patellofemoral joint in 3 dimensions, looking at its geometry, motion and stability. This work aimed to establish a relationship between this joint and the tibio-femoral joint.
CT scans of 40 normal knees were analysed using custom designed 3D imaging software. A frame of reference was defined, the flexion and extension facets were described in terms of spheres, and the offset of the extension facet sphere centres was measured relative to predefined landmarks. The locations and orientations of the groove and the trochlear axis were examined in relation to the conventional axes of the femur. As for the patella the relationships of various patellar dimensions were studied. In the next part of this study, the kinematics and stability of the patellofemoral joint were measured in 14 fresh frozen cadaveric knees using a Polaris tracking system and an Instron material testing machine after physiologically loading the quadriceps muscles. Then the relationship between these measurements and the femoral trochlear geometry was examined.
It was found that the flexion facets of the femoral condyles were spherical. The medial extension facet could be reproducibly described as part of a larger sphere. However, this was not found to be the case laterally. The trochlear groove was circular and positioned laterally in relation to the mechanical, anatomical, and trans-condylar axes of the femur. It was not co- planar with any of the three axes. The trochlear axis was defined as a line joining the centres of two spheres fitted to the trochlear surfaces, lateral and medial to the trochlear groove. When viewed after aligning the femur to this new axis, the trochlear groove appeared more linear than when other axes were used. The thickness of a patella was on average half of its measured width (correlation coefficient 0.89, p<0.001). The path of the centre of the patella was circular and uniplanar from full flexion to approximately 16° flexion, after which it deviated laterally towards full knee extension. This path was perpendicular to a newly-defined trochlear axis. There were significant correlations between the sulcus angle and the medial facet angle with medial stability(r=0.78, p<0.0001).
The knowledge of the shapes of the surfaces and motion of different compartments of the knee joint and their relationships may help to identify and explain the aetiology of knee joint pathologies. It may also be of use in planning and performing joint reconstruction. These relationships also have implications for the design of unicompartmental and total knee replacements and the rules governing their position. 


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