Avascular necrosis, also called osteonecrosis, is a condition in which bone death occurs because of inadequate blood supply to it. Lack of blood flow may occur when there is a fracture in the bone or a joint dislocation that may damage nearby blood vessels. Hip joint is most commonly affected; however, the knee and shoulder may also be involved.
A hip labral tear is an injury to the labrum, the cartilage that surrounds the outside rim of your hip joint socket.
The hip joint is a ball and socket joint in which the head of the femur is the ball and the pelvic acetabulum forms the socket. The labrum helps to deepen the socket and provide stability to the joint. It also acts as a cushion and enables smooth movements of the joint.
Femoroacetabular impingement (FAI) is a condition where there is too much friction in the hip joint from bony irregularities causing pain and decreased range of hip motion.
The femoral head and acetabulum rub against each other creating damage and pain to the hip joint. The damage can occur to the articular cartilage (the smooth white surface of the ball or socket) or the labral tissue (the lining of the edge of the socket) during normal movement of the hip.
Slipped capital femoral epiphysis (SCFE) is an unusual disorder of the hip where the ball at the upper end of the thighbone (femur) slips in a backward direction. This is caused due to weakness of the growth plate and usually occurs during accelerated growth periods such as the onset of puberty.
The primary cause of hip pain is arthritis, specifically osteoarthritis. Arthritis is the most common chronic condition and is characterized by inflammation of the joints. Common causes of arthritis include wear and tear on the bones and joint cartilage, most often when the body has too much weight to support. This can be caused by carrying heavy loads consistently for years but is more commonly a byproduct of being overweight.
Osteoarthritis, also called degenerative joint disease, is the most common form of arthritis. It occurs most often in older people. This disease affects the tissue covering the ends of bones in a joint (cartilage). In a person with osteoarthritis, the cartilage becomes damaged and worn out causing pain, swelling, stiffness and restricted movement in the affected joint. Although osteoarthritis may affect various joints including hips, knees, hands, and spine, hip joint is most commonly affected. Rarely, the disease may affect the shoulders, wrists and feet.
Those with fragile bones that may easily break have osteoporosis. The disease is the result of lower than average amounts of phosphate and calcium in the bones, which cases them to become porous and brittle. Bones that most commonly break are the bones in the spine, wrist and hip.
Hip abductors are a major group of muscles found in the buttocks. It includes the gluteus maximus, gluteus medius, gluteus minimus, and tensor fascia lata muscles.
The Gluteus medius arises at the top of the pelvic bone and runs to attach on the outer side of the thighbone or femur. The muscle controls side-to-side movement of the hip and stabilizes hip movement.