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Infrapatellar Fat Pad
The infrapatellar fat pad (Hoffa's fat pad) is a cylindrical piece of fat that is situated under and behind the patella bone within the knee. Clinical significance The fat pad is a normal structure but it can sometimes become a problem: * It can become damaged and painful * It can be deliberately removed at arthroscopic surgery to make it easier for the surgeon to see what they are doing - but this can also lead to scarring and pain. * It can become hypertrophic and may become impinged between the patella and the femoral condyle, causing sharp pain when the leg is extended. This is called infrapatellar fat pad syndrome or Hoffa syndrome. * It can become involved in the process of arthrofibrosis Arthrofibrosis (from Greek: ''arthro-'' joint, ''fibrosis'' – scar tissue formation) has been described in most joints like knee, hip, ankle, foot joints, shoulder (frozen shoulder, adhesive capsulitis), elbow (stiff elbow), wrist, hand joints as ... and become scarred (fibrotic) and con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patella
The patella, also known as the kneecap, is a flat, rounded triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint. The patella is found in many tetrapods, such as mice, cats, birds and dogs, but not in whales, or most reptiles. In humans, the patella is the largest sesamoid bone (i.e., embedded within a tendon or a muscle) in the body. Babies are born with a patella of soft cartilage which begins to ossify into bone at about four years of age. Structure The patella is a sesamoid bone roughly triangular in shape, with the apex of the patella facing downwards. The apex is the most inferior (lowest) part of the patella. It is pointed in shape, and gives attachment to the patellar ligament. The front and back surfaces are joined by a thin margin and towards centre by a thicker margin. The tendon of the quadriceps femoris muscle attaches to the base of the patella., with the vastus intermedius muscle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knee
In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). It is the largest joint in the human body. The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis. It is often termed a ''compound joint'' having tibiofemoral and patellofemoral components. (The fibular collateral ligament is often considered with tibiofemoral components.) Structure The knee is a modified hinge joint, a type of synovial joint, which is composed of three functional compartments: the patellofemoral articulation, consisting of the patella, or "kneecap", and the patellar groove on the front of the femur through which it slides; and the medial and lateral tibiofemoral articulations linking the femur, or thigh bone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthroscopic Surgery
Arthroscopy (also called arthroscopic or keyhole surgery) is a minimally invasive surgical procedure on a joint in which an examination and sometimes treatment of damage is performed using an arthroscope, an endoscope that is inserted into the joint through a small incision. Arthroscopic procedures can be performed during ACL reconstruction. The advantage over traditional open surgery is that the joint does not have to be opened up fully. For knee arthroscopy only two small incisions are made, one for the arthroscope and one for the surgical instruments to be used in the knee cavity. This reduces recovery time and may increase the rate of success due to less trauma to the connective tissue. It has gained popularity due to evidence of faster recovery times with less scarring, because of the smaller incisions. Irrigation fluid (most commonly 'normal' saline) is used to distend the joint and make a surgical space. The surgical instruments are smaller than traditional instruments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthrofibrosis
Arthrofibrosis (from Greek: ''arthro-'' joint, ''fibrosis'' – scar tissue formation) has been described in most joints like knee, hip, ankle, foot joints, shoulder (frozen shoulder, adhesive capsulitis), elbow (stiff elbow), wrist, hand joints as well as spinal vertebrae. It can occur after injury or surgery or may arise without an obvious cause. There is excessive scar tissue formation within the joint and/or surrounding soft tissues leading to painful restriction of joint motion that persists despite physical therapy and rehabilitation. The scar tissue may be located inside the knee joint or may involve the soft tissue structures around the knee joint, or both locations. The pathology that causes arthrofibrosis also causes other forms of fibrosis. Injury and inflammation activates fibroblasts and other cell types, turning them into myofibroblasts which create scar tissue and more inflammation. Arthrofibrosis of the knee (frozen knee) Arthrofibrosis of the knee, also known as " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
