What attaches to the medial meniscus

At its midpoint, the meniscus is firmly attached to the femur and tibia through a condensation in the joint capsule known as the deep medial ligament. The medial meniscus has no direct attachment to any muscle, but indirect capsule connections to the semimembranosus may provide some retraction of the posterior horn.

What does medial meniscus attached to?

The medial meniscus is the central band of cartilage attached to the tibia, or shinbone. The band goes around the knee joint in a crescent-shaped path and is located between the medial condyles of the shin and the femur, or thighbone.

What ligaments are attached to the meniscus?

Anteriorly, the transverse ligament connects the 2 menisci; posteriorly, the meniscofemoral ligament helps stabilize the posterior horn of the lateral meniscus to the femoral condyle. The coronary ligaments connect the peripheral meniscal rim loosely to the tibia.

Is the medial meniscus attached to the MCL?

THE MENISCI The peripheral border of the medial meniscus is firmly attached to the medial capsule in the deep portion of the MCL, whereas the free surface is invested by synovial membrane. The menisci cover about two thirds of the articular surface of the tibia.

Which hamstring attaches to the medial meniscus?

Hypothesis: (1) The semimembranosus tendon has a tendinous branch inserting into the posterior horn of the medial meniscus, and (2) the meniscotibial ligament is inserted on the posteroinferior edge of the medial meniscus.

👉 For more insights, check out this resource.

What attaches to lateral meniscus?

Posteriorly, the lateral meniscus is uniquely attached to the medial femoral condyle by meniscofemoral ligaments. These ligaments are highly variable and pass anterior (ligament of Humphrey) and/or posterior (ligament of Wrisberg) to the posterior cruciate ligament.

What connects the lateral and medial menisci of the knee?

Medial meniscusLeft knee joint from behind, showing interior ligaments.DetailsIdentifiersLatinmeniscus medialis

👉 Discover more in this in-depth guide.

Why is the attachment of the MCL to the medial meniscus clinically important?

It is attached proximally to the medial epicondyle of the femur immediately below the adductor tubercle; below to the medial condyle of the tibia and medial surface of its body. It resists forces that would push the knee medially, which would otherwise produce valgus deformity.

What holds meniscus in place?

The menisci are attached to each other via the transverse ligament.

Is the MCL intraarticular or Extraarticular?

The MCL and the ACL are two commonly injured structures that are typically studied with animal models. Because the MCL is extraarticular and the ACL is intraarticular, these two ligaments respond differently to injury. Smaller animals are typically used to model the MCL given its surgical accessibility.

Article first time published on

Where is medial meniscus in knee?

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.

What attaches to the posterior horn of the lateral meniscus?

The posterior horn of the lateral meniscus includes the main body of the lateral meniscus, posterior to the popliteus tendon, and its root attachment on the posterior aspect of the tibia. The lateral meniscus is even more important than the medial meniscus for shock absorption.

Is meniscus a tendon or ligament?

Four ligaments, which are tough cords of tissue, connect the thigh bone, or femur, to the lower leg bones, called the tibia and fibula. These ligaments keep the knee stable when a person walks, jumps, bends, or pivots. In between the femur and tibia is a thick layer of smooth cartilage called the meniscus.

Does a pulled hamstring hurt behind the knee?

The soft tissue that connects the hamstring muscle to the pelvis, shinbones and outer part of the knee is known as the hamstring tendon or tendons. If that tendon gets inflamed, torn, or is otherwise strained, a person might first notice pain in the back of the knee and, sometimes presenting in the thigh as well.

How does a medial meniscus tear occur?

Medial meniscal tears frequently take place when the foot is fixed on the ground and a twisting force is applied to the knee or following a forceful jump or landing. Meniscus tears may also result from a simple twist, or repeated squatting over the years.

Where is posterior horn of medial meniscus?

The posterior horn of the medial meniscus is the posterior third of the medial meniscus. It is located in the back of the knee. It is the thickest portion and absorbs the most force, so therefore it provides the most stability to the knee and is the most important portion of the medial meniscus.

What is anterior horn of lateral meniscus?

The anterior horn of the lateral meniscus blends into the attachment of the anterior cruciate ligament, whereas the posterior horn attaches just behind the intercondylar eminence, often blending into the posterior aspect of the ACL. There is no attachment of the lateral meniscus to the LCL.

Which meniscus is bigger medial or lateral?

The lateral meniscus displays greater variety in size, shape, and thickness than the medial meniscus. The lateral meniscus is shorter at 32 to 35mm3,4 and almost circular in shape. The lateral meniscus covers a larger area of the tibial articular surface at 75% to 93%.

What is an oblique tear of the medial meniscus?

Oblique tears combine features of radial and longitudinal tears in that they lie perpendicular to the free edge of the meniscus but then curve such that a portion of it lies parallel to the c-shaped fibers of the meniscus.

Which is worse lateral or medial meniscus tear?

Is the lateral meniscus tear worse than a medial meniscus tear? It is hard to differentiate what type of tear is worse if it is repairable. However, it is well known that if a lateral meniscus is taken out, the consequences are almost always worse than having a medial meniscus resected.

What is the lateral meniscus made of?

The crescent-shaped medial and lateral menisci are composed of fibrocartilage, and are interposed between the femur and tibia. They are stabilized by substantial cranial and caudal meniscal ligaments.

What structures are involved in a meniscus tear?

Three bones meet to form your knee joint: your thighbone (femur), shinbone (tibia), and kneecap (patella). Two wedge-shaped pieces of fibrocartilage act as “shock absorbers” between your thighbone and shinbone. These are the menisci.

Is the meniscus Aneural?

The inner region of the meniscus is avascular, aneural, and alymphatic tissue, which is why, similar to cartilage, its repair capacity is lower than that of the outer region.

What ligament attaches to tibia?

Anterior cruciate ligament (ACL) – The ligament, located in the center of the knee, that controls rotation and forward movement of the tibia (shin bone).

How is meniscus attached to knee?

At its midpoint, the meniscus is firmly attached to the femur and tibia through a condensation in the joint capsule known as the deep medial ligament. The medial meniscus has no direct attachment to any muscle, but indirect capsule connections to the semimembranosus may provide some retraction of the posterior horn.

Why is medial meniscus more prone to injury?

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.

What is articular capsule?

In anatomy, a joint capsule or articular capsule is an envelope surrounding a synovial joint. Each joint capsule has two parts: an outer fibrous layer or membrane, and an inner synovial layer or membrane.

What are capsular ligaments?

Capsular ligaments are simply thickenings of the fibrous capsule itself that take the form of either elongated bands or triangles, the fibres of which radiate from a small area of one articulating bone to a line upon its mating fellow.

What are ligaments?

A ligament is a fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable.

What do you do for a medial meniscus tear?

• Rest the knee. …
• Ice your knee to reduce pain and swelling. …
• Compress your knee. …
• Elevate your knee with a pillow under your heel when you’re sitting or lying down.
• Take anti-inflammatory medications. …
• Use stretching and strengthening exercises to help reduce stress to your knee.

Does posterior horn of medial meniscus have blood supply?

The meniscus is a relatively avascular structure with a limited peripheral blood supply. The medial, lateral, and middle geniculate arteries (which branch off the popliteal artery) provide the major vascularization to the inferior and superior aspects of each meniscus (Figure 5).