Minimally Invasive Hip Surgery


Can you Benefit from Keyhole Hip Surgery?
Did you know that the hip joint is the largest joint in the body and bears 3-7 times the body weight? It is a ball and socket joint, formed by the junction of the head of the thigh bone and the cup shaped acetabulum. This is enclosed within a closed sac lined by special tissue which secretes a fluid to lubricate the joint. The bones forming the joint are lined by a smooth surface called Articular Cartilage which enables free movement.

Do you have these problems?
When the joint becomes affected, in the initial stages, the lining becomes swollen,red and inflamed. This is Synovitis. If left untreated this leads to progressive loss of the smooth surfaces of the joint, resulting in arthritis. Advanced arthritis can be treated only by surgery.

The common causes requiring surgery of the hip are

  • Rheumatoid Arthritis

  • Ankylosing Spondylitis

  • Avascular Necrosis

  • Tumours in the joint

Surgery involves providing new surfaces for both the sides of the joint – Total Hip Replacement.

Conventional total hip replacement involves removing the entire ball shaped head of femur and the cup shaped acetabulum and putting in an artificial ball and socket. This is anchored deep in the thigh bone and involves removal of a large amount of bone. If it fails, the patient becomes crippled.

The Safer Option

In contrast, Minimally Invasive Hip Surgery (articular resurfacing) involves only removal of the damaged lining of the head of femur and the cup.

Specialized instruments are available for this operation that enable surgery to be performed through a small opening – a keyhole surgery.

Since the surgery is a resurfacing only, the natural diameter of the head and acetabulum are maintained. (In conventional total hip replacement, smaller head sizes are used). This has important implications – range of movement is near normal.

Other Advantages
The components that are used form a metal-on-metal articulation (i.e.) both the sides of the artificial joint are made of metal, which, in comparison to the conventional total hip replacement (a metal on polyethylene articulation), has better survival and durability and less wear. This means it can last for many more years. Metal-on-metal has better lubrication, less friction.

Summing up the benefits

  • Better soft tissue and bone preservation means less trauma from surgery which translates into faster recovery, less pain and less complications.

  • Restoration of full movements – normal physical activity including sports.

  • Better lubrication and metal-on-metal articulation means better survival rates.

All these factors make keyhole surgery of the hip, the ideal choice for the young and old.