Knee Ligament Injuries
Also known as: medial collateral ligament (MCL) injury, lateral collateral ligament (LCL) injury, anterior cruciate ligament (ACL) injury, posterior cruciate ligament (PCL) injury.
What are knee ligament injuries?
A ligament is a band of connective tissue that connects the bones on either side of a joint to one another. The knee has four ligaments: The medial collateral ligament (MCL), lateral collateral ligament (LCL), anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL). Injuries to one or more of these ligaments can cause a number of problems.
What causes knee ligament injuries?
Knee ligament injuries are common among athletes and occur due to impacts to the knees or abrupt turns in direction. But they can also occur for other reasons, as well, such as occupational accidents and injuries.
What are the symptoms of knee ligament injuries?
Pain, swelling, tenderness, bruising, numbness, difficulty moving the knee, stiffness, a popping or snapping sound or a feeling of instability in the knee are all potential symptoms of knee ligament injuries.
What are knee ligament injuries care options?
Mild or moderate knee ligament injuries can be treated with rest, ice, compression, elevation, avoidance of activities and over-the-counter pain relievers. Wearing a brace can help support the knee, and exercises can assist with healing. Surgery may be required for more severe injuries.
Reviewed by: Annie L Casta, MD
This page was last updated on: October 15, 2019 10:03 AM
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Knee Sprains and Strains
A sprain refers to an injury to a ligament, which are the bands of tissue that join bones to one another. And a strain refers to an injury to the muscles or tendons around the bones. When these injuries occur in the knee, they’re known as knee sprains and strains.
Peroneal Nerve Injury/Palsy
The peroneal nerve is an important nerve in the lower leg. It provides sensory input from the lateral aspect of the lower leg and the dorsum (top) of the foot. It also provides motor input to the muscles responsible for dorsiflexion (lifting the foot off of the ground) and eversion of the foot. When this nerve becomes injured, it can lead to sensation and movement problems, most commonly, a condition known as foot drop.