Joint Replacement Surgery
Unicompartmental Knee ReplacementIf only part of the knee joint is damaged (eighter the medical or lateral compartment), that compartment may be replaced with partial or unicompartmental knee implant.
Indications for Total Knee Replacement
Hip ReplacementReducing wear in turn reduces risk of long term loosening and inflammation. Also, due to the large size ball, greater stability and increased motion is achieved with reduced incidence of dislocation or "joint popping off" as compared to traditional hip replacement operations.
A normal hip joint replacement has an average life span of usually 15-20 years. Progressive research has lead to significant improvement in wearproperties and design of the prostheses. These newer joints are especially useful for younger individuals where long term wear with operations.
Recently, Hip resurfacing operation have also become very popular especially in younger individuals (less than 65 years) with good bone quality. In this operation only the surface of the damaged femoral head is removed and is replaced with a (relatively) thin shell of metal. Femoral head and the Femoral canal is largely preserved. Size of the implant is large thus significantly reducing the risk of dislocation. Also, Resurfacing patients are more likely than total hip replacement patients to recover a natural gait.Traditional prostheses are a major concern. The newer joints last longer (due to reduced wear properties) but also provide extra movements without the fear of dislocation as the size of the femoral "head" or "ball" is large. Such advanced joint replacement system include Metal on Metal replacement or Ceramic total hip replacement.
About Knee & Hip Replcaement Surgery
If you are a candidate for knee or hip replacement surgery, you probably anticipate that life after the surgery will be much like life before it, but without pain. Improvement of joint movements is onBefore discussing about THR it is very important to have a brief review about the hip joint. It is a ball and socket joint. The ball component is attached to the top of the femur (long bone of the thigh). The socket is part of the pelvis. The ball rotating in the socket permits you to move your leg either forward or backward, as well as sideways. With a healthy hip the smooth cartilage covering the surfaces of each anticular ends provides a friction-free gliding of the anticular components. Any pathology marked by progressive loss of anticular cartilage produces joint space narrowing become rough and the resulting pain causes difficulty in walking. The hip joint becomes stiff making it difficult to put on socks or shoes.
There are several ways to fasten the components during the hip replacement. With a centered type surgery, the implants are held in place by on bone cement. In a non-cemented total hip replacement, fixation occurs as the bone grows on and into the implant surface.
Until recently, surgery on the inside of any joint meant making a large incision and opening the joint to do even the most minor procedure. Twenty years ago, fiber optics began changing all that and is continuing to change how we Arthroscopic surgeons operate on joints in the body.