What is the role of lateral Retinacular release?
Imbalance may arise because of weakness in the dynamic stabilisers (vastus medialis obliquus) or over-constraint from the passive stabilisers (lateral retinaculum). The role of the latter is to resist medial displacement of the patella, counteracting the dynamic medialising force generated by the former.
What is the lateral patellar retinaculum?
The lateral retinaculum is the fibrous tissue on the lateral (outer) side of the kneecap (patella). The kneecap has both a medial (on the inner aspect) and a lateral (on the outer side) retinaculum, and these help to support the kneecap in its position in relation to the femur bone underneath it.
What is the primary restraint against lateral patellar displacement?
There are several static and dynamic stabilizers of the patella. The medial patellofemoral ligament (MPFL) is the primary static restraint to lateral patellar instability during the first 20 degrees of knee flexion. This ligament is almost always torn with patellar dislocations.
Why is a lateral release performed?
Lateral release surgery, also known as keyhole surgery, is a procedure performed to realign the kneecap (patella). Typically, the lateral release is performed as an arthroscopic procedure in an outpatient setting. The goal of lateral release surgery is to relieve pain associated with a partially dislocated kneecap.
What happens after lateral release of knee surgery?
Once you have undergone lateral release surgery you will experience pain, stiffness, swelling and limited range of movement in your knee. You will have a bandage and pad placed on the outer side of your knee to attempt to hold the patella in its correct position and prevent it returning to the outer side of the knee.
What is retinaculum in knee?
The medial patellar retinaculum is a tendon of the knee that crosses the knee joint on the medial side of the patella. It plays important roles in the formation of the fibrous capsule of the knee and in the extension of the knee joint.
What causes tight lateral retinaculum?
Causes. Lateral patellar compression syndrome can result from poor alignment of the kneecap, complete or partial dislocation, overuse, tight or weak thigh muscles, flat feet, direct trauma to the knee.
What causes lateral subluxation of the patella?
What Causes Patellar Subluxation? The most common cause is weakness and/or tightness of certain muscles in the hip and thigh, which can make the knee move differently than it should. A direct blow to the front or side of the knee that pushes the kneecap out of its groove.
What factors control the tracking of the patella?
It is caused by imbalances in the forces controlling patellar tracking during knee flexion and extension, particularly with overloading of the joint. Risk factors include overuse, trauma, muscle dysfunction, tight lateral restraints, patellar hypermobility, and poor quadriceps flexibility.
What does a lateral patellar tilt mean?
Lateral patella tilt is when the knee cap is not sitting properly in the groove at the bottom of the thigh bone (femoral groove) and is tilted towards the outside (lateral) of the knee.
What is a lateral subluxation of the patella?
A patellar subluxation means that the kneecap has briefly slid out of its normal place in that groove. In most cases the kneecap moves towards the outside of the body when it slides out of place.
What causes lateral patellar tilt?
Quadriceps tendon—the quadriceps muscle anchors into the patella via the quadriceps tendon.
Can the lateral collateral ligament heal itself?
Tears to the lateral collateral ligament most often occur from a direct blow to the inside of the knee. This can stretch the ligaments on the outside of the near too far and may cause them to tear. This type of injury occurs in sports. Lateral collateral ligament tears do not heal as well as medial collateral ligament tears do.
What causes patellar tendon pain?
Causes. Patellar tendinitis is a common overuse injury, caused by repeated stress on your patellar tendon. The stress results in tiny tears in the tendon, which your body attempts to repair. But as the tears in the tendon multiply, they cause pain from inflammation and weakening of the tendon.
What are the different causes of patellar ligament pain?
Patellofemoral pain (runner’s knee): pain under or around the kneecap,often related to mechanics,shape of the knee cap,or