Attenuated patella alta is an extremely rare condition affecting mobility and leg strength.

Typically, as the knee cap sits in the joint, it is stimulated to growth by abrasion from the opposing bones.

When not situated properly in the joint, the knee cap does not experience such stimulation and remains small and undeveloped.

The "patellar tendon" that connects the kneecap to the tibia (shinbone) is elongated (longer than normal).

After surgery and physical therapy, Eric gained the ability to walk and run without significant difficulty.