Let’s talk about the knee joint. It’s not quite as complicated as the shoulder, because it doesn’t move in as many directions. Having that kind of mobility with all of our body weight on top of it… well, that would be a recipe for disaster. Instead, we have a modified hinge joint. The knee folds, but it also twists a little bit. The trick is keeping this twist under control.
Collateral ligaments run along each side, and the cruciate ligaments (named so because they form a cross) inside the joint create stability. Strong quadriceps (a set of 4 muscles on the front of thigh), hamstrings (three muscles in back of thigh), adductors (inside) and abductors (outside) also support the knee. Slick cartilage lines the surfaces where bones meet. The meniscus, a pair of special horseshoe-shaped cartilage structures, help absorb shock and guide the movement of the femur. And there’s a bursa on top of the patella (kneecap) to provide some extra cushioning. Pretty neat design, huh?
If your gait is off, it can affect your knees and eventually your hips and back. Good shoes are important for knee health. Avoid heels as much as possible. If you have flat feet, use shoes with good arch support. To prevent injury, frequent light workouts are best. If you are a bigger person or have joint issues, try to reduce impact: walking or using an elliptical trainer is better than running, and staying on grass or a rubber track is better than concrete.
Did you know that babies are born without kneecaps? They have a cartilage wedge but it doesn’t ossify (turn to bone) until about 3 yrs old. Lucky for them – It makes crawling around on a hard floor much more comfortable.
Acupuncture can reduce inflammation, increase blood flow, relax tight muscles, and speed healing. I can also do Osteopathic medical massage to break up scar tissue, release myofascial adhesions, and retrain the neurological system. This allows chronically tight muscles to return to normal. In most cases, therapeutic exercise is important for complete healing.
Acupressure you can do at home: LV-3
*Please note that I’m simplifying the anatomy quite a bit for the purposes of this newsletter. If you’re interested in all the marvelous details of our bodies, I highly recommend Netter’s Atlas.