knee joint


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joint

 [joint]
the site of the junction or union of two or more bones of the body; its primary function is to provide motion and flexibility to the frame of the body. Some are immovable, such as the sutures where segments of bone are fused together in the skull. Others, such as those between the vertebrae, are gliding joints and have limited motion. However, most joints allow considerable motion. The most common type are the synovial joints, which have a complex internal structure, composed not only of ends of bones but also of ligaments, cartilage, the articular capsule, the synovial membrane, and sometimes bursae.
acromioclavicular joint the point at which the clavicle joins with the acromion.
ankle joint the joint between the foot and the leg; see ankle.
arthrodial joint gliding joint.
ball-and-socket joint a synovial joint in which the rounded or spheroidal surface of one bone (the “ball”) moves within a cup-shaped depression (the “socket”) on another bone, allowing greater freedom of movement than any other type of joint. See illustration. Called also polyaxial or spheroidal joint.
bicondylar joint a condylar joint with a meniscus between the articular surfaces, as in the temporomandibular joint.
cartilaginous joint a type of synarthrosis in which the bones are united by cartilage, providing slight flexible movement; the two types are synchondrosis and symphysis.
composite joint (compound joint) a type of synovial joint in which more than two bones are involved.
condylar joint (condyloid joint) one in which an ovoid head of one bone moves in an elliptical cavity of another, permitting all movements except axial rotation; this type is found at the wrist, connecting the radius and carpal bones, and at the base of the index finger. See illustration.
diarthrodial joint synovial joint.
elbow joint the synovial joint between the humerus, ulna, and radius. See also elbow.
ellipsoidal joint condylar joint.
facet j's the articulations of the vertebral column.
fibrous joint a joint in which the union of bony elements is by continuous intervening fibrous tissue, which makes little motion possible; the three types are suture, syndesmosis, and gomphosis. Called also immovable or synarthrodial joint and synarthrosis.
flail joint an unusually mobile joint, such as results when joint resection is done to relieve pain.
glenohumeral joint the synovial joint formed by the head of the humerus and the glenoid cavity of the scapula. Called also humeral joint and shoulder joint.
gliding joint a synovial joint in which the opposed surfaces are flat or only slightly curved, so that the bones slide against each other in a simple and limited way. The intervertebral joints are this type, and many of the small bones of the wrist and ankle also meet in gliding joints. Called also arthrodial joint and plane joint.
hinge joint a synovial joint that allows movement in only one plane, forward and backward. Examples are the elbow and the interphalangeal joints of the fingers. The jaw is primarily a hinge joint but it can also move somewhat from side to side. The knee and ankle joints are hinge joints that also allow some rotary movement. See illustration. Called also ginglymus.
hip joint the synovial joint formed at the head of the femur and the acetabulum of the hip. See illustration at hip.
humeral joint glenohumeral joint.
immovable joint fibrous j.
knee joint the compound joint between the femur, patella, and tibia.
pivot joint a synovial joint in which one bone pivots within a bony or an osseoligamentous ring, allowing only rotary movement; an example is the joint between the first and second cervical vertebrae (the atlas and axis). See illustration. Called also rotary or trochoid joint.
plane joint gliding joint.
polyaxial joint ball-and-socket joint.
rotary joint pivot joint.
sacroiliac joint the joint between the sacrum and ilium in the lower back; see also sacroiliac joint.
saddle joint a synovial joint whose movement resembles that of a rider on horseback, who can shift in several directions at will; there is a saddle joint at the base of the thumb, so that the thumb is more flexible and complex than the other fingers but is also more difficult to treat if injured.
shoulder joint humeral joint.
simple joint a type of synovial joint in which only two bones are involved.
spheroidal joint ball-and-socket joint.
synarthrodial joint fibrous j.
synovial joint a specialized joint that permits more or less free movement, the union of the bony elements being surrounded by an articular capsule enclosing a cavity lined by synovial membrane. Called also articulation and diarthrosis. A capillary network in the synovial membrane provides nutrients and synovial fluid to nourish and lubricate the joint space. Strong fibrous bands or cords (ligaments) give strength and security to synovial joints. The majority of the body's joints are of this type. They are divided into five types according to structure and motion: ball and socket, gliding, saddle, hinge, and pivot.
Joints.
trochoid joint pivot joint.
temporomandibular joint (TMJ) a bicondylar joint formed by the head of the mandible and the mandibular fossa, and the articular tubercle of the temporal bone. See also temporomandibular joint disorder.

knee joint

[TA]
a compound condylar synovial joint consisting of the joint between the condyles of the femur and the condyles of the tibia, articular menisci (semilunar cartilages) being interposed, and the articulation between femur and patella.
Synonym(s): articulatio genus [TA]

knee joint

(nē joynt) [TA]
A compound condylar synovial joint consisting of the joint between the condyles of the femur and the condyles of the tibia, articular menisci (semilunar cartilages) being interposed, and the articulation between femur and patella.

Patient discussion about knee joint

Q. What causes inflammation of the knee joint?

A. It depends on many things - the age of the person, other diseases he or she may have, whether he experienced any trauma to the joint, drugs or other substances he or she uses. Generally speaking, it may be caused by an infection (usually after trauma, very painful and abrupt inflammation, necessitates rapid treatment), rheumatologic diseases (such as rheumatoid arthritis or others, reaction to drugs or as a feature of other diseases.

You may read more here: http://en.wikipedia.org/wiki/Arthritis

More discussions about knee joint
References in periodicals archive ?
He said an algorithm for hip and knee joint replacement was also developed and published in the Nigerian Medical Journal to guide surgeons doing these surgeries to reduce the risk of infection.
Conclusion: Ultrasound therapy of knee joint improves pain, stiffness and physical activity in patients with osteoarthritis of knee joint.
* Patients who are diagnosed as having OA of knee joint.
TKR was performed using PSIs based on knee joint CT and full-length lower extremity radiography in 31 patients and using conventional instruments in another set of 31 patients.
However, by reviewing previous study results regarding age of union, we found a wide range [14-23] for knee joint plate unions [11-18] and for hand joint plate unions [1, 9,15-18,20-23].
MRI of the knee and hip joints was performed using dedicated knee coil on 1.5 Tesla Philips MR Achieva, which revealed frond-like villous proliferation of the synovium in bilateral knee joint and suprapatellar compartment, which showed fatty signal on T1W (Figure 3A) and T2W image (Figure 3B).
The morphological and contractile properties of skeletal muscles around the knee joint following ACL resection with or without its reconstruction are evaluated in an animal model.
Morphological study of the menisci of the knee joint in adult cadavers of the South Indian population.
This condition has no cure as such, but doctors have been known to inject corticosteroids into patient's knee joints in an attempt to alleviate the inflammation that is causing the pain.
"Our new design features a parallel knee joint to improve the bioimitability and adaptability of the exoskeleton," he said in a press release.
Proper knee joint function (i.e., walking ability, muscle strength, and full ROM) is important for the walking and walking ability and there is a need for patients to recover quickly after surgery.
Quadriceps femoris is a muscle group including four powerful extensors of knee joint on the front of the thigh.