Phone: 817-697-4038 Fax: 877-409-3962


If you suffer from knee instability, please Schedule an appointment with one of our orthopedic specialists as soon as possible.

What is Knee Instability?

Knee instability is a condition that occurs when the knee joint is unable to maintain its normal stability and control during movement. It can be classified into two types: subjective instability and objective instability.

Subjective instability refers to a feeling of unsteadiness or a lack of confidence in the knee joint. It may be experienced as a sensation of the knee giving way, buckling, or feeling unstable during activities such as walking, running, or changing direction.

Objective instability, on the other hand, refers to measurable and observable joint laxity or abnormal movement of the knee. This can be assessed through physical examinations, specialized tests, or imaging studies.

Factors That Contribute To Knee Instability

  1. Ligament injuries: Damage to the ligaments that provide stability to the knee, such as the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), medial collateral ligament (MCL), or lateral collateral ligament (LCL), can result in knee instability.
  2. Meniscus tears: The menisci are cartilage pads that provide cushioning and stability to the knee joint. Tears or damage to the menisci can affect the stability of the knee.
  3. Patellofemoral instability: This occurs when the patella (kneecap) does not track properly in the femoral groove, leading to a feeling of instability, recurrent dislocations, or subluxations.
  4. Muscle weakness or imbalances: Weakness or imbalances in the muscles around the knee, including the quadriceps, hamstrings, and hip muscles, can impact joint stability and control.
  5. Structural abnormalities: Congenital or acquired structural abnormalities, such as abnormal alignment of the bones or joint laxity, can contribute to knee instability.
  6. Chondromalacia patella: Damage to the cartilage on the patella or the trochlear groove of the femur.

Treatment For Knee Instability

Treatment for knee instability depends on the underlying cause and severity of the condition. It may involve conservative measures such as physical therapy to strengthen the surrounding muscles, improve balance and proprioception, and restore joint stability. Bracing, taping, or orthotic devices may also be used to provide additional support. In cases of severe ligament or meniscus injuries, surgical intervention, such as ligament reconstruction or meniscal repair, may be necessary to restore stability.

It is important to consult with a healthcare professional, such as an orthopedic specialist or sports medicine physician, for a proper evaluation and diagnosis of knee instability. They can provide personalized treatment recommendations and guidance to help restore stability and improve function in the knee joint.


If you would like to speak to an Orthopedic Foot and Ankle Specialist, give us a call at 817-697-4038, or contact us over the web. Tele-medicine appointments are also available.