Dr. M Rajanna

Knee replacement is a procedure where the weight-carrying surfaces of knee joint are replaced surgically to ease the pain or any disability. People suffering from osteoarthritis, rheumatoid arthritis or psoriatic arthritis undergo knee replacement. All these conditions revolve around stiffness and painful knee. This surgery is usually performed on people aged over 50.

Surgery Types-

Knee replacement is mainly of two main types:

1. Total knee replacement where both the sides of knee joints are replaced
2. Partial knee replacement where only single side of the joint is replaced

Procedure-

In case of partial knee replacement with minimal invasion, a smaller incision, which is 3 to 5 inches, is required. This leads to minimal tissue damage, and the surgeon can work between the fibres of the quadriceps muscles. Here, an incision through the tendon is not required. This may result in less pain, recovery time is reduced, and motion is better as scar tissue formation is less.

In total knee replacement, four steps are performed:

1. Removal of damaged cartilage surfaces, which is at the ends of the femur and tibia, with a small quantity of underlying bone.
2. Replacement with metal components, which help as a recreated surface of the joint
3. Incision of knee cap with a resurface made of a plastic button, which is optional based on the case
4. Insertion of a medical-grade plastic spacer amid the metal components. This creates an effortless gliding surface.

After general or spinal anaesthesia, an incision of 8-12inches is made in the front part of the knee. Joint part which is damaged is removed from the surface of the bones. The surfaces are then formed in a way to hold a metal or plastic artificial joint. The thigh bone shin as well as knee cap is attached to the artificial joint with either cement or a special material.

After Effects of the Procedure-

After the surgery, patients may stay in a hospital for three to five days. Post surgery, notable improvement can be seen after a month or later. The patient is gradually relieved from pain with the construction of new gliding surface during surgery.

There will be slow progress in the movement. In the beginning, one may walk with a support of parallel bars and then with the help of crutches, walker, or cane. After full recovery in about six weeks, people can enjoy normal activities except running or jumping.

Presently, over 90% of total knee replacements function well even after 15 years of surgery. Hence, knee problem is no problem at all! In case you have a concern or query you can always consult an expert & get answers to your questions!

Breaking a bone no matter how small is painful. This pain is caused both by the actual break in the bone and the damage to surrounding muscles, ligaments, nerves and other soft tissue. There are three stages of pain caused by a fracture:

1. Acute Pain: Pain that occurs immediately after a bone is fractured
2. Sub-Acute Pain: Pain experienced while the one and soft tissues heal
3. Chronic Pain: Pain experienced after the fracture has healed

Any kind of fracture can cause these types of pain. However, it is not essential for everyone who has had a fracture to experience all the three kinds of pain. Many people experience pain only when the fracture occurs but in few cases, a person may break a bone and not realize it. Each type of pain needs to be dealt with in a different way.

1. Acute Pain: Acute pain reduces as the fracture heals. For this, the fractured bone must be reset in place and held together with a splint, brace or cast so as to immobilize it. In some cases, surgery may also be needed. Over the counter pain medication is often prescribed to help deal with this type of pain. The patient is also advised to rest the broken bone and avoid certain types of movement that could worsen the break. A broken bone takes a minimum of 6 to 8 weeks to heal. However, in cases of other conditions such as osteoporosis, this time period could be much longer.
2. Sub-Acute Pain: As the injury heals, the sub-acute pain experienced reduces. Immobilizing a broken bone to help it heal causes the muscles and soft tissues around it to stiffen and weaken thus triggering this type of pain. Physical therapy can be very helpful in dealing with this type of pain. Along with strengthening the muscles and reducing stiffness, physical therapy also helps reduce inflammation and scar tissue. Physical therapy can be provided in many ways including exercises, electrical stimulation, ultrasounds, massage etc. It is important to remember that at this stage of treatment, the more the affected limb is used, the faster it will heal. However, it is advisable to avoid putting too much pressure on the bone.
3. Chronic Pain: Some people may experience pain for several months and even years after a fracture has healed. This is usually caused by nerve damage or the development of scar tissue. Underlying conditions such as arthritis could also trigger this type of pain. Management of chronic pain varies from individual to individual. Treatment usually takes the form of medication, exercises and physical therapy. 

In case you have a concern or query you can always consult an expert & get answers to your questions!