Archive for the ‘Knee’ Category

As I stated a while back, I have re-read Hoppenfeld again and of course “new” material is being highlighted that was not previously highlighted.

I just recently finished the chapter on the knee and there was a multitude of information that was great review and I found very interesting.

Let us look at the ligaments of the knee briefly – specifically that lateral and medial collateral ligaments.

We are all unfortunately aware of the unhappy triad. While not nearly as devastating as it was 20 years ago due to surgical advances over the years, there is no denying the severity of this injury.

As we simply look at the structure of the knee, we can begin to understand why the medial collateral ligament and medial meniscus are involved in these type of injuries. Obviously injury mechanism is paramount but anatomy is also important to this discussion.

First off, the medial meniscus is attached to the upper edge of the tibial plateau by small coronary ligaments. Secondly, the medial meniscus is attached to the medial collateral ligament. Thirdly, the medial meniscus is somewhat mobile but nowhere near as mobile as it’s counterpart, the lateral meniscus. Fourthly, the medial collateral ligament is a part of the joint capsule of the knee which can subject it to greater stressors.

As we compare and contrast the lateral side of the knee, there are some significant differences. Again, not understating the mechanism of injury but reviewing the anatomy gives us a great starting point.

As we look at the lateral meniscus and lateral collateral ligament, we’ll first see that the lateral meniscus is attached to the popliteus muscle but not the lateral collateral ligament. So right off the bat, we have a structure in the lateral meniscus that is more mobile than it’s medial counterpart. Secondly, as we examine the lateral collateral ligament, we realize that this ligament is independent of the joint capsule. This can help to explain why the lateral collateral ligament is more readily palpable while the medial collateral ligament is not.

Maybe it has been a while since you reviewed the anatomy of the knee but these reviews can give us refreshed insights into the structure of the knee and will help you in your knowledge of the evaluation and treatment of injuries.

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