Question

Describe the sequence of injuries that may occur if the extended, weight-bearing knee receives a very strong blow to the lateral side of the knee?

The periodontal ligaments are made of collagen fibers and are responsible for connecting the roots of the teeth

to the jaws. Describe how scurvy, a disease that inhibits collagen production, can affect the teeth?

Answer 1

Hello,

1) Strong blow to the lateral side of the knee can cause medial collateral ligament (MCL) tear and involvement of medial meniscus and anterior cruciate ligament (ACL)

If we see causes :

• • Acute varus or valgus stress on the knee joint

  • Sports related (younger population) - highest risk in skiing, rugby, football, soccer and ice hockey

  • Falls (elderly)

  • Other trauma

• Overuse syndromes (for example, swimmers who use the breaststroke may repetitively stretch the MCL, leading to injury)

2)
Scurvy as a clinical manifestation of severe vitamin C deficiency is caused by ascorbic acids role in collagen synthesis. Collagen type IV is a main constituent of blood vessel walls, skin, and specifically, the basement membrane zone separating the epidermis from the dermis.
Vitamin C is a necessary nutrient that helps the body absorb iron and produce collagen.
If the body does not produce enough collagen, tissues will start to break down.
It is also needed for synthesizing dopamine, norepinephrine, epinephrine, and carnitine, needed for energy production.