A 27 year old female training to be a police officer comes intothe clinic complaining of left, anterior, knee pain. She statesthat while running an obstacle course yesterday she was running onuneven ground and she twisted her knee, causing her to fall. Shelanded on her left knee and immediately experienced pain. Thepatient states that she is unable to bear weight and she is unableto move her knee into full extension or flexion. The patient hasconsiderable swelling and she states that when it first happenedthere was a bump (or deformity) on the outside of her knee. Lastly,the patient states that when she does try to weigh the bear itfeels like her knee is going to give out. The patient does notrecall hearing a pop. Based on this information, come up with adifferential diagnosis, identify possible structures involved, andcome up with a treatment plan for this individual.
