Knee exams can usually be done with X-rays, CT or MRI. If the knee is selected for X-rays, a front and side view will usually be done, costing a total of$140. If the knee is a CT, the price for a 16-row CT knee is$263.20. If the knee needs to look at the ligaments and meniscus, you must choose an MRI because only an MRI can clearly show the damage to the ligaments and meniscus of the knee. The cost of choosing a 1.5T MRI for the knee is$600, and choosing a 3.0T for the knee is$750, depending on the requirements.