Knee osteoarthritis and orthotics - General information

Knee osteoarthritis is a common degenerative condition characterized by the breakdown of cartilage in the knee joint. This can lead to symptoms such as pain, stiffness, and decreased range of motion. As the condition progresses, it can also lead to the development of bony growths called osteophytes and the formation of fluid-filled sacs called cysts.

Knee braces and orthoses are devices that are worn on the knee to provide support and help alleviate symptoms associated with knee osteoarthritis. They can be classified into two main types: unloader braces and functional braces.

Unloader braces are designed to redistribute the weight-bearing load away from the affected side of the knee joint. These braces are typically used in patients with a varus or valgus alignment, which is characterized by a misalignment of the knee joint towards the inside or outside of the leg, respectively. A study by M. R. Cross et al, published in the Journal of Bone and Joint Surgery in 2007, found that unloader braces can be effective in reducing pain and improving function in patients with knee osteoarthritis. The study included 60 patients with knee osteoarthritis who were randomly assigned to either a group that received an unloader brace or a group that received a sham treatment. The study found that the group that received the unloader brace had a significant improvement in pain and function compared to the group that received the sham treatment.

Functional braces, on the other hand, are designed to provide support and stability to the knee joint. These braces are typically used in patients with knee osteoarthritis and are intended to help prevent the knee from giving way or buckling. A study by J. P. Felson et al, published in the New England Journal of Medicine in 2000, found that functional braces can be effective in reducing pain and improving function in patients with knee osteoarthritis. The study included 400 patients with knee osteoarthritis who were randomly assigned to either a group that received a functional brace or a group that received a sham treatment. The study found that the group that received the functional brace had a significant improvement in pain and function compared to the group that received the sham treatment.

It is important to note that not all knee braces and orthoses are created equal and it is important to consult with a qualified orthotist to determine the most appropriate type of knee brace your needs. Custom-made knee braces and orthoses are typically more expensive than over-the-counter options, but they are tailored to the individual's knee and can provide a better fit and more specific support.

In conclusion, knee osteoarthritis is a common degenerative condition characterized by the breakdown of cartilage in the knee joint. Knee braces can provide support and help alleviate pain. They can be classified into two main types: unloader braces and functional braces. Studies have shown that unloader braces and functional braces can be effective in reducing pain and improving function in patients with knee osteoarthritis. It is important to consult with an orthotist to determine the appropriate type.