Total Knee Replacement

Total knee replacement surgery involves removing parts of the damaged knee and replacing them with artificial parts called prostheses. Damage is the result of arthritis and/or injury.

The knee replacement consists of three pieces:

Femoral component: metal piece that caps the end of the femur and has a groove, which allows the kneecap to move up and down as the knee bends and straightens.

Tibial component: flat piece of metal with a plastic (polyethylene) plate that covers the top of the tibia or the shin bone.

Patellar component: dome-shaped piece of plastic that allows the kneecap to glide smoothly over the new knee.

Partial Knee Replacement

A partial knee replacement or “Uni” (UKA) may be an option when only one compartment of the knee is damaged and needs to be replaced:

Medial compartment – inner side of the knee (Approximately 90% of partial knee patients)

Lateral compartment – outer side of the knee

In order to be a candidate for a partial knee replacement certain factors will need to be considered. Your surgeon will discuss these factors with you during your appointment..

Knee Arthroscopy

Arthroscopy of the knee is an operative technique to address cartilage tears, joint surface damage, ligament tears, and other knee disorders. Knee arthroscopy can be indicated if you have persistent pain, knee swelling, instability or grinding.

One common knee problem that we treat quite frequently via arthroscopy is a tear of the meniscus.

  • Meniscus Tear Information
    The meniscus is a mobile, c-shaped, shock-absorbing cartilage in the knee. Each knee has two meniscii – one on the inner side of the knee, and one on the outer side. Twisting or deep knee bending injuries can cause damage to the meniscus. The most common complaints of a meniscus tear are pain along the joint line and painful catching or frequent “giving way” symptoms. In addition, knee swelling is also common.

    Small meniscus tears can be treated with oral anti-inflammatory medications or injections, but larger tears can be best treated with arthroscopic surgery.

    The meniscus has a very poor blood supply, so there are only certain types of tears that have the ability to heal with surgical repair. Most meniscus tears are treated with removal or “debridement” of the torn portions to smooth-out the roughness of the tear. Surgery on a torn meniscus is done arthroscopically and patients go home the same day of surgery.

Total Hip Replacement

Total hip replacement surgery consists of a specially designed ball and socket that replaces your worn hip joint. The ball and stem replace the worn ball of your thighbone (femur). A cup replaces the rough hip socket (pelvis). The implant has smooth surfaces that fit together and allow the ball to move easily and painlessly within the socket, much like a healthy hip.

The doctors of Joint Implant Surgeons routienly utilize the following minimally invasive techniques to treat a problem hip which can often result in quicker recovery times:

Less Invasive Direct Lateral approach is a minimally invasive technique to hip replacement where the incision is potentially one-half to one-third the size of a typical hip replacement.

Anterior Supine Intramuscular (ASI) approach is a minimally invasive technique to hip replacement designed to preserve muscles and reduce trauma to the surrounding tissues.

Hip Arthroscopy

Arthroscopy of the hip is an expanding field. Hip arthroscopy is most commonly used in younger patients with pre-arthritic conditions and torn cartilage. In order to gain access to the hip joint, gentle traction is placed upon the operative leg so that the surgeon can safely enter the hip joint.

Conditions treated with hip arthroscopy include:

Femoral-Acetabular Impingement (FAI): FAI is a condition in which the ball and socket of the hip do not match perfectly. Because of subtle abnormalities on either the ball (femoral head) or socket (acetabulum), this “conflict” can create damage to the hip joint. The damage can occur to the articular cartilage (smooth white surface of the ball or socket) or the labral tissue (soft tissue gasket that surrounds the opening of the socket). FAI is thought to be a contributor to early arthritis of the hip.
Labral Tear: The labrum of the hip is a cuff of thick tissue that surrounds the hip socket and helps to seal the hip joint. When a labral tear of the hip occurs, a piece of this tissue can become pinched in the joint causing pain and contributing to damage of the socket cartilage. Loose Bodies: Loose bodies are pieces of cartilage that form within the joint. They look like small fragments floating within the joint space. These loose bodies can become caught within the hip during movements.
Snapping Hip Syndrome: Snapping hip syndrome has several causes, some of which can be treated with hip arthroscopy. If something is catching within the hip joint, hip arthroscopy can be used to relieve this snapping.
Cartilage Damage: In patients with focal cartilage damage, rather than generalized arthritis, hip arthroscopy may be helpful. When patients sustain an injury that causes a piece of cartilage to break away from the surface of the bone they may benefit from removal of that piece of cartilage and subsequent repair of the cartilage defect.
Early Arthritis: This is a controversial topic, as patients who have significant arthritis pain generally will not benefit from a hip arthroscopy. The patients who tend to benefit have specific findings of impingement (pinching) within the hip joint, and may benefit from removal of the bone spurs causing this impingement.

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