The hip is one of the largest weight-bearing joints. It consists of two main parts: a ball ( femoral head ) at the top of thighbone ( femur ) that fits into a rounded socket ( acetabulum ) in pelvis. Bands of tissue called ligaments ( hip capsule ) connect the ball to the socket and provide stability to the joint.
The bone surfaces of ball and socket have a smooth durable cover of articular cartilage that cushions the ends of the bones and enables them to move easily.
A thin, smooth tissue called synovial membrane covers all remaining surfaces of the hip joint. In a healthy hip, this membrane makes a small amount of fluid that lubricates and almost eliminates friction in hip joint.
Arthritis of hip in young patient is of greater concern all over the world. This could be due to a number of disorders such as- Primary Osteoarthritis, Avascular Necrosis (death of bone due to lack of blood supply), Trauma or Injury (previous hip fractures), Infection, Childhood hip disease, Rheumatoid arthritis, Ankylosing Spondylitis and other diseases. These disorders are more debilitating than cancer and cardiac diseases.
This high incidence of hip arthritis is really a major issue for the young patient, those barely between 20 and 30 years of age. Such debility will limit the earning capacity. In order to reduce hip pain and increase function, surgery is necessary for the patient suffering from hip arthritis.
Minimally invasive total knee replacement is a technique developed to minimize the negative effect on the quadriceps muscle (the muscle that runs across the front of your thigh). When you straighten out your knee while you are sitting, you feel this powerful muscle working in front of thigh and knee is quadriceps. The center of the quadriceps muscle is the quadriceps tendon, which provides much of the power to the knee joint.
In traditional knee replacement surgery, this muscle and tendon group is usually split lengthwise to gain access to the knee. It is sewn and repaired at the end of the surgery. In minimally invasive knee replacement surgery, the knee joint is accessed without cutting through the quadriceps tendon called "quad-sparing". Patients have found they experience less pain and a quicker recovery with this type of surgery.
Modern hip replacement has resulted in huge benefit for patients with arthritic hip disease providing them with reduction of pain, return of function and consequently an improved quality of life. The clinical success of total hip replacement is often taken for granted by the general population. There is evidence of increased longevity (twenty years or more) with some total joint replacements, but many of these mechanical joints fail at around fifteen years when the hip joint loosens. Revision hip surgery is technically extremely difficult and few orthopaedic surgeons have extensive experience in this field