Whenever a patient has a patella dislocation, osteochondral fractures
should be considered. A case study involving a 17-year-old swimmer who
se knee was injured playing baseball details a patella dislocation tha
t was accompanied by a defect of the medial patellar facet and a later
al impaction lesion of the lateral femoral gutter-both producing loose
bodies. Careful physical examination and a radiographic series that i
ncludes anteroposterior, lateral, notch, and sunrise patella views ass
ist in making an accurate diagnosis and guide the clinician to the app
ropriate treatment. Treatment involves a knee stabilizer followed by a
ggressive quadriceps strengthening. Loose bodies require arthroscopic
surgery.