Problem
Twenty-year-old Isabella suffers an acute knee injury during a soccer match, just feet in front of you. The team physician begins examining Isabella, who is unable to bear any weight on her knee. During the examination, you see that the physician is able to pull the proximal end of the tibia anteriorly while slightly flexing Isabella's knee. Isabella will undergo an MRI in the near future, but based on the exam findings alone what do you know about Isabella's knee? Explain.