Related Experiment Video
Updated: Jul 30, 2026

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
Published on: May 26, 2020
Patellar tracking problems in athletes
1Sports Medicine Center, Omaha, Nebraska.
Abstract:
Problems of the patellofemoral joint have long been recognized as a source of knee dysfunction. They range in spectrum from pain alone to recurrent instability, yet all are related in origin by congenital predisposition. Problems of the extensor mechanism are prevalent in any and all populations. Most patellofemoral problems respond readily to conservative rehabilitation efforts. Because of its chronic, recurrent nature, satisfactory results remain elusive in some syndromes. In our practice, the newer McConnell techniques have proved to be a positive addition to the extensor mechanism armamentarium, allowing pain-free return to function for most patients.
Related Concept Videos
Bones of the Lower Limb: Femur and Patella
Knee Joint
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...
Muscles that Move the Leg
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed to...

