Is the medial meniscus or lateral meniscus more commonly torn?
The medial meniscus is more vulnerable to injury to due to its intimate attachment to the medial collateral ligament. The moveable lateral meniscus is less prone to tear except when the ACL is injured.
Can you tear your meniscus a second time?
Have you had a meniscus repair and are now experiencing knee pain, swelling and loss of function? If so, you may have re-torn your meniscus. A re-torn meniscus can occur from a fall, traumatic event or degeneration.
Can a meniscus tear be misdiagnosed?
Misdiagnosis is common with root tears because they lack some of the typical hallmarks of meniscus injury: locking or catching of the knee or a sudden giving way. “It’s not that hard to find the injury,” Faucett says, “but until the past few years, there’s been little awareness of it, so physicians don’t look for it.”
What can mimic a medial meniscus tear?
Normal anatomic structures that can mimic a tear include the meniscal ligament, meniscofemoral ligaments, popliteomeniscal fascicles, and menisco- meniscal ligament. Anatomic variants and pitfalls that can mimic a tear include discoid meniscus, meniscal flounce, a meniscal ossicle, and chondrocalcinosis.
Can you fully recover from a meniscus tear?
Most people who tear a meniscus can return to full activity. If you have surgery to repair a torn meniscus, your knee should be fully recovered after a few months of physical therapy.
Can a meniscus tear be missed on an MRI?
Any tears appear as white lines. An MRI is 70 to 90 percent accurate in identifying whether the meniscus has been torn and how badly. However, meniscus tears do not always appear on MRIs. Meniscus tears, indicated by MRI, are classified in three grades.
Where is meniscus tear pain located?
Symptoms of a meniscus tear may be different for each person, but some of the most common symptoms are: Pain in the knee joint: usually on the inside (medial), outside (lateral) or back of the knee. Swelling. Catching or locking of the knee joint.
Why is the lateral meniscus less prone to injury?
The lateral meniscus is less prone to injury than the medial meniscus. This is because it doesn’t attach to the lateral knee ligament in the same way that the medial cartilage meniscus attaches to the medial ligament. A tear of the lateral meniscus can occur during twisting movements, direct impact to the knee joint,…
What kind of tear is the medial meniscus?
Mild anterior extrusion of the anterior horn of the medial meniscus. Complex tear involving the posterior horn of the medial meniscus which extends into the body of the meniscus and to a lesser extent into the anterior horn. Underlying mucoid degeneration of the medial meniscus. The lateral meniscus is intact.
Can a lateral meniscus tear heal without surgery?
Lateral meniscal tears may heal with no surgery. The white zone doesn’t have a blood supply and won’t heal naturally. This meniscus receives its nutrition from the synovial fluid. Because of this, tears of the inner meniscus rarely heal because of an absence of blood supply to trigger an inflammatory response.
When do meniscal root Tears change joint loading?
Medial meniscal root tears are “radial” tears within 1 cm of the meniscal root insertion or an avulsion of the insertion of the meniscus. These injuries have been reported to change joint loading due to failure of the meniscus to convert axial loads into hoop stresses.
What’s the difference between medial and lateral meniscus tears?
The medial meniscus is on the inner side of the knee joint. The lateral meniscus is on the outside of the knee. Meniscus tears can vary widely in size and severity. A meniscus can be split in half, ripped around its circumference in the shape of a C or left hanging by a thread to the knee joint.
Do you need surgery for a lateral meniscus tear?
When you experience a medial or lateral meniscus tear, your treatment options will depend on the severity, location and size of the tear. When a tear is on the outer section of a meniscus and if it is small in nature, you may not need surgery.
What causes pain in the lateral meniscus of the knee?
A lateral meniscus tear is a relatively common injury involving tearing of shock absorbing tissue, known as cartilage, within the knee joint. The lateral meniscus is situated at the outer aspect of the knee joint and when damaged typically causes pain or discomfort in this area.
Can a meniscus tear cause sudden onset of pain?
In some often older patients, degenerative changes to the knee joint may be associated with an overuse lateral meniscus injury. In these cases, damage to the lateral meniscus may take place with a reasonably trivial movement. Patients with a lateral meniscus tear often experience a sudden onset of pain at the time of injury.