A knee orthosis is a type of knee brace which offers some protection against injury in those with joint conditions or who have already suffered a knee injury. Many braces them fit from the lower thigh downward toward the calf and hold the knee steady while adding support. Some models are used to help supplement a ligament which has been torn or damaged in a previous injury, although it does not work as effectively as natural ligaments.
The use of a knee orthosis is often prescribed by a licensed physician to offer better options for athletes and those who are prone to knee injury. They are mostly useful for those who have injuries directly to the ligaments, as this is what an orthosis is designed to supplement or replace. There are some studies which show that athletes can take a heavier blow with the use of a brace than without, but these studies are inconclusive because the forces tested were usually must less than what would be expected to occur during an impact sport.
In most cases, a knee orthosis should not be used until all other forms of rehabilitation have been completed. This will ensure that the knee is more stable even without the use of the brace. All healing that is possible should be completed before sports are participated in, so a doctor should be the one to give a green light in terms of engaging in high-impact activities.
Since there is no conclusive evidence as to the effectiveness of a knee orthosis in protecting serious athletes, it is advised that players avoid repeated injury by refraining from the sport if the knee has been seriously weakened or damaged. Ligaments do not always grow back or heal to be as strong as they were pre-injury, so oftentimes impact sports should be avoided altogether.
Sometimes a knee brace or knee orthosis may be used in those who have not suffered any previous injury in order to prevent injury in the first place. This has not been proven entirely effective and some studies seem to indicate that injuries may be more likely to occur in players who are using a brace. One exception seems to be arthritis patients, as they are less likely to suffer injuries to the ligaments while using a brace if the knees have become weakened due to arthritis pain and stiffness. These patients should speak with their doctors to determine if a knee orthosis is a good preventative measure to take.
