The posterior cruciate ligament (PCL) is a ligament within the knee. Ligaments are tough bands of tissue that connect bones.
The PCL -- similar to the anterior cruciate ligament (ACL) -- connects the thigh bone (femur) to your shin bone (tibia). Although it is larger and stronger than the ACL, the PCL can be torn.
PCL tears make up less than 20% of injuries to knee ligaments. Injuries that tear the PCL often damage some of the other ligaments or cartilage in the knee, as well. In some cases,...
It is important to find out if you have a navicular fracture, because navicular fractures need treatment to heal well. With proper treatment and follow-up, most navicular fractures will heal over time. Without treatment, and sometimes with treatment, healing can be slow and difficult because parts of the navicular bone don't have a good blood supply. If your navicular bone does not heal well, you can have long-term pain, stiffness, or arthritis in your wrist.
What causes a navicular fracture?
Most navicular fractures occur when you stretch your hand out in front of you to protect yourself from a fall. They can also occur when your wrist twists severely or is hit very hard. Navicular fractures often happen while a person is playing sports such as football, soccer, or basketball or during activities such as Rollerblading, skateboarding, or bike riding. They can also occur as a result of a car crash or a fistfight.
What are the symptoms?
Because most navicular fractures do not cause the wrist to look broken and many cause only minor symptoms, it can be hard to know if your navicular bone is broken. If the bone is broken, you may have:
Pain, tenderness, or swelling on the thumb side of your wrist.
A hard time grabbing or gripping things or moving and twisting your wrist or thumb.
It can be hard to tell the difference between a wrist that is sprained and one that is broken. If you have fallen on an outstretched hand and your wrist hurts, be sure to see a doctor to find out if you have any broken bones. Navicular fractures that are not treated properly can lead to long-term problems.
How is a navicular fracture diagnosed?
Your doctor will ask you questions about your symptoms and about how and when you hurt your wrist. He or she will then look at your wrist, find any swollen or tender areas, and see how well you are able to move your wrist and thumb. Your doctor will also try to find out how well blood is flowing to your hand and if you have any nerve damage in your wrist.