Dr. Steven B. Morgan, an orthopedic surgeon serving Allen and McKinney, TX, specializes in the treatment of various orthopedic conditions of the knee. He has extensive experience in diagnosing and treating Kneecap Dislocation.

Kneecap Dislocation

Kneecap Dislocation is a common sports injury characterized by a tear in the connective tissue adjacent to the patella and subsequent displacement of the kneecap out of its groove. Also known as Patellar Sublimation, the condition is more commonly seen in adolescents and young adults. Kneecap Dislocation usually causes the patella to slip towards the outside of the leg.

Causes Of Kneecap Dislocation

  • Sudden change in direction with the leg planted
  • Direct trauma or blow to the knee
  • Excessive twisting or jumping
  • Shallow femoral groove
  • History of kneecap dislocation
  • High impact sports activities
  • Weak inner quadriceps muscles
  • Hypermobile or imbalanced patellofemoral joint

Symptoms Of Kneecap Dislocation

  • Knee pain and tenderness
  • Pain at the edges of the patella
  • Visible deformity
  • Difficulty straightening the leg
  • Swelling on or around the knee joint
  • Hypermobile patella
  • Pain increases during physical activity
  • Discomfort while standing or walking

Diagnosis Of Kneecap Dislocation

In order to diagnose Kneecap Dislocation, the orthopedic doctor may examine the visible deformity and tenderness in the knee joint. He may also recommend certain imaging tests to assess the damage caused to the surrounding ligaments and tissues.  

Treatment For Kneecap Dislocation

  • Patellar Reduction: The orthopedic doctor may hold the knee in a hyperextended position and apply pressure to move the patella back into its groove.
  • RICE Therapy: After the reduction procedure, the patient may be advised to follow the RICE therapy. This includes taking sufficient rest, applying ice on the affected joint, compressing with an elastic bandage and keeping it elevated above heart level.
  • Medications: Anti-inflammatory medicines may be prescribed to provide relief from pain and discomfort.
  • Physical Therapy: This can help to strengthen quadriceps muscles and prevent recurrent dislocations.
  • Bracing: Wearing specialized knee braces or casts can help to stabilize the movement of the joint.
  • Surgery: This may be recommended for patients suffering from intense pain or having repeated dislocations. During the procedure, the orthopedic surgeon loosens the constricted lateral ligaments to allow the patella to get back to its original position.


After surgery, the patient may be advised to undergo a rehabilitation program to recover completely and prevent future dislocations. It can help to restore the functionality of muscles, range of motion of the joint, strength and endurance. Patients involved in sports activities may also require agility and balance retraining to safely get back to the field.  

For comprehensive diagnosis and treatment of Kneecap Dislocation, visit Dr. Morgan. To schedule an appointment with the orthopedic surgeon, you can call at (972) 727 – 9995.