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Type of Implants

The plastic and metal hip implants are the most commonly used joint replacements procedures at present. In this, the socket and ball parts of the hip joint are implanted with metal prosthesis and the plastic is used in the space between.

Hip Implants

The metals that are used for hip replacement implant include stainless steel, titanium, and cobalt chrome. The plastic that is used in the space is polyethylene. This type of hip implant is protected till the bone through press-fit or it is cemented into place.

The implants made of Ceramic-on-ceramic are designed as the most defiant to wear of all obtainable types of hip implants replacement. The implants made of ceramics posses more scratch resistant power and are also smoother in comparison to other materials used for implant.

Implants made of Metal-on-metal also possess similar kind of materials as used in plastic and metal hip implants. But the only difference is that there is no plastic material inserted between the implants similar to plastic and metal hip implants. Metal-on-metal implants have more wearing capacity in comparison to the plastic and metal implant materials. The rate of metal and plastic implants wearing is of 0.1 millimeters each year.

Above all, the most commonly used hip implants are the new kinds of plastic that are made to be more defiant to wearing out. These are known as extremely crosslinked plastics. These implants are manufactured in such a way that they have the more resistant power in comparison to the conventional plastics.

All the above discussed types of hip replacement implants have different kind of benefits and they are utilized depending on the type of patient’s age, structure and circumstances. Since it is foreign object that are induces in the body, so there are some risks involved. So it is always advised to go for the hip implants from reputable and well- known surgeon who is expertise in this field.

Also the patient should opt for physiotherapy after the implant is conducted as per the advice of the medical practitioner. Different type of implants have different effects so proper care about health should be taken and medication should not be missed out following a regular check up till it becomes normal.

Summary – Therefore, to recover quickly from the hip implants healing process, all major precautions should be taken depending on the types of hip implants.

Knee Implants

Knee implants is basically a surgical procedure for substituting the weight-bearing regions of the knee joint for relieving disability and pain. In knee implants an artificial surface is placed in the knee region of the body. The patients who are suffering from  brutal malformation from advanced trauma, long-lasting osteoarthritis or rheumatoid arthritis the surgery can be proven more difficult and bear higher danger. It is usually undertaken for osteoarthritis and also for other several knee problems such as psoriatic arthritis and rheumatoid arthritis. Osteoporosis does not naturally lead to deformity, knee pain, or swelling. This surgical procedure has now become very common.

Reasons for knee implants

There exist various factors which lead to knee implants. When an individual experience problems in the movement of the legs, and in walking as well then he or she must go to a doctor.  Some of them are mentioned below.

  • Unable to stand for a long time.
  • Swelling in the knee joints
  • Problem in walking.
  • Fever from a terrible pain
  • Weak knee joints.
  • Unbearable pain.

Various kinds of knee implants surgery

There are various kinds of knee implants surgery available in the medical science. Some of them are discussed here.

  • Fixed-bearing implants– Whenever fixed-bearing implants are utilized, a constituent made of metal is generally inserted into the human tibia and a polyethylene tray is fixed into position on the top of it.
  • Rotating platform implants– In this kind of implants, an alike metal implant is simply inserted into the human tibia, but the polyethylene tray is located on a round stem which permits slender rotation of the tray on the artificial tibial surface during knee movement.

Knee implants surgery can be done either partially or totally.

Partial knee implants surgery– In partial knee implants surgery a specific compartment of the knee is replaced.

Total knee implant surgery– In total knee implants surgery the entire knee part is replaced.

Reasons behind an injured knee

There are numerous reasons behind the harm of the knee joint. Some of them are mentioned below.

  • Lack of calcium
  • Infection
  • Age
  • Fractures
  • Accidents
  • Heredity
  • Arthritis

Surgical processes

Minimally invasive surgery is a revolutionary part of knee implants surgery. Its main feature is that it utilizes specialized methods and instruments for enabling the doctor for performing critical surgery without any huge incision.

This kind of replacement surgery requires a much slighter incision of 3 to 5 inches, and it is distinct from the standard incision and approach.

Laparoscopic surgery, which is also known as minimally invasive surgery, is also called keyhole surgery. It is basically a modern surgical method in which surgeries are done far from their exact situation by means of small incisions (generally 0.5–1.5 cm) somewhere else in the human body.

Computer Navigated Surgery processes are also accessible for guiding the surgeon in providing enhanced accuracy. Numerous commercial CAS systems are obtainable for utilization worldwide. Knee Nav was considered as the initial system invented particularly for total knee implants. Advantages of this kind of surgery are mentioned below.

  • lesser incisions- faster recovery and Less pain
  • Minimum hospital stay
  • Minimum Scarring
  • a lesser amount of bleeding and requirement of blood transfusion
  • Less interruption of tissue
  • A durability of implant greatly enhanced
  • Minimizing the risk of dislocation after hip replacement surgery

Shape and size of the knee implants

As defined in the medical science, knee implants generally refers to the inclusion of components made of plastic and metal and plastic. For ensuring a soft, gliding movement, and to ignore friction, metal components never come into direct contact with each other. Metal components are generally composed of cobalt chrome or titanium. Titanium-only implants are accessible for the patients who are sensitive to to nickel, but it is tougher for obtaining the extremely refined surface which facilitates smooth movement with titanium than it is specifically with cobalt chrome.

The patient’s weight, size and gender do have an impact on implant selection.

Risk factors

Risk factors of knee replacement surgery are

  • Dislocation
  • Vein Thromobosis
  • Fracture
  • Metal sensitivity
  • Inequality of leg length
  • Nerve palsy
  • Metal toxicity
  • Osteolysis

 

 

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