Knee Joint facts

While investigating facts about Knee Joint Pain and Knee Joint Anatomy, I found out little known, but curios details like:

Four-legged animals like horses and dogs don't have backwards knees. Those joints are actually their ankles, which bend in the same direction as our ankles do.

how knee joint works?

There is an alternative to an above the knee amputation, called a rotationplasty, which involves reattaching the calf, ankle, and foot backwards to create a new knee joint.

What type of joint is the knee?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what causes knee joint pain. Here are 14 of the best facts about Knee Joint Effusion and Knee Joint Pain Treatment I managed to collect.

what knee joint effusion?

1. Coloration of the body indicates that ladybug can be dangerous for potential predators. In the case of danger, ladybug secretes toxic substance from the knee joints that keeps the predators on the safe distance.

2. Chimney sweep kids would be forced to climb up chimneys, their masters would light a fire under their feet or prick them with needles. The master sweeps would also attempt to "harden" their knees and elbows my scraping their scarred joints with a rough brush and brine in front of a hot flame

3. Rotationplasty' is an alternative procedure for bone cancer after radiation, where the cancerous lower leg (incl. knee) is amputated and the ankle is attached to the upper leg with the foot facing backward. The foot then acts like the knee joint and a prosthesis is attached to it.

4. Birds knees don't actually bend backwards, but forwards like humans. The joint we see that we perceive as a knee is actually closer to the human equivalent of an ankle (which pivots backwards relative to the knee).

5. The world’s most used partial knee implant was invented after an engineer looking for funding to research a joint to be used in aeroplanes was mistakenly introduced to a surgeon.

6. Cockroach has 6 legs and over 18 knees. Legs with multiple joints represent adaptation to the life in different terrains. Thanks to unique type of legs, cockroach can run and hide from predators very fast.

7. There’s a type of amputation where the leg is rotated and the foot is used as a joint for the knee

8. The visible "knee" of the flamingo is actually ankle joint. True knee is close to the body and can"t be seen because of the feathers.

9. Irish Dancer Michael Flatley announced his intentions to retire after revealing that years of dancing has lead to problems with the Sacroiliac joint in his spine, a damaged left knee, a torn right calf muscle, two ruptured Achilles tendons, a fractured rib and a broken bone in his foot

10. Flamingos cannot sleep while standing on both legs, and can sleep on one leg because they swivel the weight-bearing leg to the middle of their bodies and then rest on the knee whilst gravity holds the leg down with the joints locked

Why knee joints make sound?

You can easily fact check why knee joint pain occurs by examining the linked well-known sources.

Rotationplasty is a surgical procedure for young patients that need their lower limb amputated. The section that needs to be amputated is cut out and the foot is reattached backwards, allowing the ankle to function as a replacement knee joint with the prosthetic.

Rotationplasty allows bone cancer patients to retain functional knee joints. By using the heel as one. - source