Male 74 years old Reason: left knee pain and locking History: left knee pain. We have 4 views of the left knee. A vertically oriented deformity involving the lateral aspect of the patella may represent a bipartite patella or a healed nondisplaced fracture which was initially suspected on the MRI study from December 2010. Ossicles seen on the lateral view anterior to the distal femur are unchanged from the prior exam and may represent heterotopic ossification of the proximal quadriceps tendon or loose bodies in the suprapatellar pouch. There is mild osteoarthritis of the right knee with joint space narrowing of the medial compartment as seen on the frontal views, and is unchanged from prior exam.
1. Nonspecific curvilinear lucency may represent a bipartite patella or healed nondisplaced fracture as described above.2.Ossicles anterior to the distal femur may represent heterotopic ossification of the quadriceps tendon or loose bodies in the suprapatellar pouch.