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Do You Have An Unstable Kneecap?

We depend on our knees to move easily. An unstable kneecap inhibits smooth movement and can lead to chronic problems. We explain the symptoms that signal this injury.

What is an unstable kneecap?

Every time we rise from a seated position, take a stroll, or kneel to tend a garden, we are relying on the stability of our knees. The kneecap, or patella, is critical to stability in the knee joint. The kneecap is a small bone located in the front of the knee joint where the thighbone and shinbone meet. It acts as a shield for the joint, and connects the muscles in the front of your upper leg to your shinbone. The underside of the kneecap is covered with slippery hyaline cartilage that allows the bones in the joint to glide smoothly as your leg moves.

Because the kneecap connects thigh muscles to the bone in your lower leg, bending and straightening your leg causes the kneecap to be pulled up or down—but it is held in place by a groove in the thighbone. However, if the groove is uneven or too shallow, the kneecap may slide out of place causing partial or complete dislocation. A blow to the kneecap could also pop it out of position in the joint.

Symptoms of an unstable kneecap

The symptoms that signal a partial or complete kneecap dislocation include the following:

How to treat an unstable kneecap?

If you experience these symptoms, consult your orthopedic doctor for an examination and diagnosis. Dislocation can damage the underside of the kneecap and the bones in the joint; in addition to being painful, this injury can lead to arthritis.

The first step in treating a dislocated kneecap is to return it to its proper position. This is done through a process called reduction. Sometimes, reduction happens spontaneously. Other times, your physician may need to gently push the kneecap back into alignment. Exercises and bracing can strengthen the muscles that hold the kneecap in place. If the instability becomes chronic, you and your doctor may consider surgery to correct the problem. With prompt treatment, you should be able to return to your regular activities within one to three months of diagnosis and treatment.

Summit Orthopedics offers comprehensive sports medicine expertise

From Olympians to pro athletes to kids in youth sports and those that just want to be more active—Summit Orthopedics delivers expert care by fellowship-trained sports medicine physicians. If you are recently injured or concerned about ongoing pain, Summit Orthopedics sports medicine specialists have the expertise to evaluate your discomfort and develop a plan to quickly and safely help you get back to being active.

Start your journey to stronger, healthier athletic condition. Find your sports medicine expert, request an appointment online, or call us at (651) 968–5201 to schedule a sports medicine consultation.

Summit has convenient locations across the Minneapolis-St. Paul metro area, serving Minnesota and western Wisconsin. We have state-of-the-art centers for comprehensive orthopedic care in Eagan, MNVadnais Heights, MN, Plymouth, MN, and Woodbury, MN, as well as several additional community clinics.

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