Osteoarthritis of the knee joint is one of the most common diseases prevalent in the Indian society. Arthritis is fast emerging to be the most common disease and it is estimated that by 2013 more than 65 crore population will be suffering from it.
With the rapid changes in the lifestyle of the Indian society the age group being affected by it is getting younger and younger. Nowadays, middle age men & women start suffering with knee pain in their 40’s. The main cause for it is a lack of exercise, sedentary lifestyle, obesity, and diet changes that include higher amounts of unhealthy junk foods in the diet replacing healthy foods.
The disease generally starts with pain in the knee on exertion with mild swelling and difficulty in stair climbing. Gradually it progresses to causing pain at rest, swelling, and severe difficulty in standing and walking. If diagnosed early the patient can be treated with medicines, exercise and physiotherapeutic modalities. For correct treatment the patient must consult an orthopaedic surgeon for medications and physiotherapist for exercises.
The physiotherapy treatment should include exercise as the mainstay of treatment and not just modalities. Heat, cold, Ultrasonic therapy and other physical therapy treatment provide quick pain relief and exercises that include stretching and strengthening give a more permanent effect. The exercises include strengthening of the hip and leg muscles and stretching of the tight muscles around the hip and knee.
When all fails then knee replacement is the best treatment option available. The misconception among people suffering from knee problem about “dangers” of knee replacement has to change. Patients and their family need to understand that knee replacement is their best shot in regaining mobility and leading a normal family and social life.
Their are several myths related to knee replacement surgery. In this article we shall discuss a few in brief.
Myth: A patient with knee replacement does not regain mobility by atleast 6 months post surgery and will walk with a walker.
Fact: A patient with Knee surgery who undergoes quality physiotherapy post knee replacement generally walks independently within the first two weeks of rehabilitation. The strengthening and mobility exercises in the early phase of rehabilitation helps in quicker recovery. The post operative condition of the patient depends on his pre operative conditioning. That is a patient with good muscle strength and cardiovascular status previous to surgery recovers faster.
Myth: Another myth arises because off the name of the procedure. The name total knee replacement is a misnomer. The knee of the patient is not totally removed and replaced with an artificial joint.
Fact: In the ‘total knee replacement' surgery, the knee is not replaced. It is only ‘resurfaced'. The normal knee has an articular cartilage that covers the knee bones. In an arthritic knee, the cartilage covering the bone ends is destroyed leading to the bone rubbing against bone. In the surgery the rubbed and damaged bone ends of both the femur and the tibia are covered with caps or implants that prevent further damaging and also allow for smoother movements between the artificial surfaces.
Myth: Every patient receives custom-made specific knee prosthesis.
Fact: This is not true. Before the surgery the surgeons take several scans of the leg and knee to assess various mechanical angles of the knee and leg. To correct these, surgeons perform certain additional procedures to correct the malalignment. This helps in proper fitting and action of the implant. There are a set of five sizes of implants, one of which fits every human.
Myth: It is not a long term solution but only temporary.
Fact: This is not true either. Most cases (around 90%) have the ease of mobility and function for a period of almost 15 years. Cases fail either due to improper fitting of implant, lack in rehabilitation causing lack of mobility or in some cases due to weak bones and extreme amounts of damage to the surrounding structures. In case of a Replacement failure, an artificial knee can come out earlier, requiring a second surgery.
Myth: It should not be done in over weight patients.
Fact: Obesity or being overweight is one of the major causes of Knee arthritis. Once the patient has arthritis and is obese, it is very difficult to break the vicious cycle of weight gain and arthritis. Thus a heavy patient opting for replacement helps in easing of the pain, gaining mobility and strength and thus the ability to exercise and lose weight. It is almost impossible to exercise and lose weight in a painful knee condition.
Myth: Wait and avoid surgery as long as possible.
Fact: This is incorrect. More time the patient loses and lives with pain, higher is the degree of deformity and muscle weakness in the knee. This makes the road to recovery post surgery a bumpy one. Patients who could erase pain from their lives and attain considerable mobility wait too long damaging knees enough to get poorer results out of a surgery.
It is true that knee replacement is not the solution for every patient with knee arthritis. Patient selection, accurate execution of the operation, and pre- and post-op rehabilitation are the three most important parameters to give a successful result.
