Treatment of patellar subluxation

Patellar luxation is a congenital developmental disorder. Common symptoms include genu valgum, poor limb development, and limb deformities. It is a relatively serious deformity that causes great harm to the patient's body and mind. In general, patellar luxation is treated with surgery, which is quick, safe and effective.

Habitual patellar dislocation generally requires surgical treatment. Depending on the cause, different comprehensive surgical methods are adopted. The general principle is that for patients with immature epiphyses, soft tissue surgery is the main option. For patients with mature epiphyses, bone surgery may be considered.

The most basic surgery is to completely release the lateral contracture tissue of the patella. Then, depending on the specific situation, two or three surgical methods are selected to adjust the force line of the knee extensor mechanism or reconstruct the medial patellofemoral ligament.

1. Soft tissue surgery

(1) Tightening and suturing of the medial patellar retinaculum and medial patellofemoral ligament can be performed under arthroscopy.

(2) Inferior and medial quadriceps head transposition.

(3) Upward transposition of the lateral head of the quadriceps femoris.

2. Patellar ligament transfer

The lateral half of the lower end of the patellar ligament was cut and flipped inward and sutured.

3. Tibial tubercle transposition

The tibial tuberosity is dissected and displaced medially and anteriorly.

4. Osteotomy

For patients with significant femoral rotation and genu valgum, osteotomy correction may be considered.

5. Patellofemoral arthroplasty

Reshape the patella, raise the lateral condyle of the femoral trochlea, and deepen the femoral trochlear groove.

6. Medial patellofemoral ligament reconstruction

Reconstruction of loose or ruptured medial patellofemoral ligament using other tendinous tissue.

complication

Because this disease is accompanied by abnormal development of the anatomical structure of the knee joint, the purpose of surgery is only to solve the dislocation problem, and it is impossible to restore the normal patellofemoral joint apposition relationship. In addition, most patients have cartilage damage in the patellofemoral joint before surgery, and a long period of adaptation and running-in is required after the reduction surgery, which will inevitably leave some complications. The more common ones include limited flexion and extension of the joint, patellofemoral joint cartilage damage and recurrence of dislocation.

The human skeleton is the main framework supporting our body. Abnormal development of joints can lead to bone deformities. Therefore, it is recommended that patients with patellar luxation actively receive treatment, do not try strenuous exercise, maintain a positive and optimistic attitude, strive for a speedy recovery, and go to the hospital for regular check-ups to prevent recurrence of the disease.