Wednesday, May 27, 2009


Lutut :

Lutut merupakan sendi penghubung di antara tulang paha (femur) dan tulang betis (tibia). Ligamen adalah struktur pada lutut yang memegang tulang femur dan tibia dan menolong mengawal pergerakan sendi.

Sendi lutut merupakan sendi yang terbesar badan dan berperanan penting untuk pergerakan. Terdapat dua set ligamen yang memberikan lutut kestabilan: cruciate and colateral.

Kecederaan Lutut:

-Kecederaan lutut terjadi disebabkan oleh beberapa perkara. Antara salah satu kecederaan lutut yang boleh terjadi ialah akibat pergerakan secara mendadak. Dimana jika seseorang itu melakukan penukaran arah pergerakan secara mendadak boleh menyebabkan satu kecederaan pada sendi lutut anda. Selain itu, jika seseorang itu sedang berlari dan dia berhenti secara mengejut ini juga akan menyebabkan kecederaan pada sendi lutut. Pelanggaran semasa fakel seperti bola sepak, futsal dan bola jaring juga akan mendatangkan kecederaan pada sendi lutut.






Knee Injury

The knee has a simple purpose. It needs to flex (bend) or extend (straighten) to allow the body to perform many activities like running, walking, kicking, and sitting. Imagine standing up from a chair if your knees couldn't bend.

Knee Anatomy

While there are four bones that come together at the knee, only the femur (thigh bone) and the tibia (shin bone) form the joint itself. The head of the fibula (strut bone on the outside of the leg) provides some stability, and the patella (kneecap) helps with joint function. Movement and weight-bearing occur where the ends of the femur called the femoral condyles match up with the top flat surfaces of the tibia (tibial plateaus).

There are two major muscle groups that are balanced and allow movement of the knee joint. Contracting the quadriceps muscles on the front of the thigh extends the knee, while the hamstring muscles on the back of the thigh flex the knee when they contract. The muscles cross the knee joint and are attached to the tibia by tendons. The quadriceps tendon is a little special, in that it contains the patella within it. The patella allows the quadriceps muscle/tendon unit to work more efficiently. This tendon is renamed the patellar tendon in the area below the kneecap to its attachment to the tibia.

The stability of the knee joint is maintained by four ligaments, thick bands of tissue that stabilize the joint. The medial collateral ligament (MCL) and lateral collateral ligament (LCL) are on the sides of the knee and prevent the joint from sliding sideways. The anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) form an "X" on the inside of the knee and prevent the knee from sliding back and forth. These limitations on knee movement allow the knee to concentrate the forces of the muscles on flexion and extension.

Inside the knee, there are two shock-absorbing pieces of cartilage called menisci (singular meniscus) that sit on the top surface of the tibia. The menisci allow the femoral condyle to move on the tibial surface without friction, preventing the bones from rubbing on each other.

Bursas surround the knee joint and are fluid filled sacs that cushion the knee during its range of motion. In the front of the knee, there is a bursa between the skin and the kneecap called the prepatellar bursa and another above the kneecap called the suprapatellar bursa (supra=above).

Each part of the anatomy needs to function properly for the knee to work. Acute injury and trauma as well as chronic overuse can both cause inflammation and its accompanying symptoms of pain, swelling, redness and warmth.

Kenangan Merentas Desa 2008