Knee replacement can be extremely painful. Previously, opioids or narcotics were administered for pain relief. But excessive addition of opioids is not exactly effective for controlling pain. 

Multimodal pain management has become an important part of the perioperative care of patients undergoing total joint replacement. The principle of multimodal therapy is to use interventions that target several different steps of the pain pathway, allowing more effective pain control with fewer side effects. Many different protocols have shown clinical benefit. The goal of this review is to provide a concise overview of the principles and results of multimodal pain management regimens as a practical guide for the management of joint arthroplasty patients.

Multimodal denotes administering two or more than two types of medications that work with different mechanisms. The following are the techniques used:

Pre-operative Femoral Nerve Block: Prior to the surgery, a catheter is placed beside the femoral nerve for blocking it. This nerve is located in the upper thigh. Medication is delivered through the catheter for the nerve to be numbed for 24 hours. Thus, pain signals to the brain are blocked. This method reduces the use of narcotics and the consequent side effects.

Patient Controlled Analgesia (PCA): This method is also known as  Pain Pump . An intravenous pump is used to administer pain relief medications, such as oxymorphone or morphine, after the surgery. The control button of the machine could be pressed, by the patient for 6 to 10 times per hour. The machine is used for two post-operative days.

Oral Medications: The oral medications include Non-Steroidal Anti-Inflammatory drugs or NSAID; such as Celebrex which is similar to aspirin, structurally. Alternatively, acetaminophen, such as Tylenol or its equivalent composition, can also be used.

Acetaminophen: It acts on the Central Prostaglandin Synthesis and relieves the patient of pain through multiple mechanisms.

Epidural Analgesia: It produces lower pain scores and involves less time for achieving physical therapy goals. However, this is subject to side effects such as dizziness, urinary retention and itchiness.

Gabapentinoids: These medications include membrane stabilizers such as Gabapentin and Pregabalin.

The objective of multimodal treatments is to provide quick relief to the patient and immediately so. Earlier the rehabilitation, more successful will be the knee replacement surgery.

Multimodal Pain Relief After Total Knee Replacement

Pain in the joints continues to bug mankind till this very day. There are different types of joint pains, which might occur all of a sudden, with no signs of receding. The most common of them all are arthritis, tennis elbow, frozen shoulder, back pain and repetitive muscular strain. These joint pains are sometimes impossible to diagnose properly by the regular modes of diagnosis. In those cases, resorting to the homeopathic mode of medication might be a good idea as it is a medication based on treating the actual cause of the disease and sustained use might result in complete remission of the pain.

Some commonly used homeopathic medications for pain in the joints are as follows:
1. Rhus Tox: This is the most commonly used in homeopathic preparation for severe joint pains, the symptoms of which include severe pain after relaxation, pain triggered by slightly wet weather and pain after walking or running for a long time.

2. Arnica Montana: When the symptoms are pain in every joint of the body resulting in body aches and pertaining injuries due to accidents, Arnica Montana serves as the perfect medication.

3. Actea Spicata: This medicine is primarily used as a remedy for pains in the small joints of the hands. The symptoms for which the medication can be implemented are rheumatoid arthritis in the joints of the finger and swollen wrists after usage of the hand.

4. Colchium: This medicine can be used in case of Rheumatoid Arthritis (inflammatory and chronic form of arthritis).

5. Bryonia Alba: This medication can work wonders if the symptoms include severe pain in the knee joints while walking, severe swollen joints and osteoarthritis (affects the flexible tissues present at the bone ends).

However, it is always advisable to take medication as prescribed by your doctor, as the potency and frequency can only be decided by your doctor.

Homeopathic Treatment for Pain in the Joints

Why does PAIN occur? Understand the Mechanism of Pain

Pain is an unpleasant and distressing physical sensation caused by disease or injury, which induces hurt and anxiety in those suffering from it.
There are many different manifestations of pain, ranging from short term (acute pain) to long term (chronic pain). Other classifications include pain in the internal organs (visceral pain), injured tissue (inflammatory pain), nerves (neuropathic pain), etc.

The reason for the occurrence of pain depends on the cause and kind of pain being experienced. In most cases, pain acts as a warning sign that the body has been afflicted by a disorder of some sort, which may have arisen due to internal sickness or external wounding. Acute pains are generally cured on their own through rest or simple medication. Chronic pains, on the other hand, are more complicated in nature and the treatment requires more elaborate diagnosis.

The mechanism of pain

Pain is an extremely personal and subjective experience and affects each individual to varying degrees. The pain signals, which can arise in any part of the body, travel through the spinal cord to the brain along thousands of specialized nerves and nerve fibres. In the brain, it is processed in the centres associated with anxiety, emotions, memory, appetite, etc. Signals and pain inputs are then returned from the brain to the spinal cord, which may heighten or diminish pain.

In some cases, pain may also be induced by damage to the brain and spinal cord, which happens after a stroke.
A constant barrage of pain signals may cause the cells at the end of nerve fibres to become over-sensitized. This is known as 'wind-up' and is one of the most common causes of chronic pain that occurs even though the root of the problem has been identified and treated.

The causes and effects of pain differ from case to case depending on the signals received by the brain and its interpretation. It affects the individual's day to day activities and if persistent, can also have a harmful impact on mental health and psychosis. Pain is always handled, diagnosed and treated differently in all patients by drawing out the best possible solution to the problem.





Why does PAIN occur? Understand the Mechanism of Pain

Your knees are one of the most vulnerable parts of your bodies. In case of strenuous or vigorous activities, knees are more prone to damage and injury than the other parts. Several of the knee tissues are fairly delicate and often are easily impaired. Among the other knee tissue injuries, meniscus tears are perhaps the most frequent. Meniscus is essentially a cartilage that protects and stabilizes the knee joints. However, an untoward twist or a strain can lead to a tear in the meniscus. Meniscus tears are a common phenomenon among athletes and sportsmen. They have been noted to be more recurrent in older individuals. 

Some of the early symptoms that indicate the onset of a meniscus tear are swelling and difficulty in bending or straightening of the leg. Sometimes a" locking sensation" in the knees also forebodes a torn meniscus. The inflammation potentially causes a lot of pain and irritation. While, it is fairly easy to ignore a meniscus tear for a normal knee injury, prolonged overlooking may only aggravate the pain and worsen the condition. The process of diagnosing a meniscus tear usually involves an mri scan and an x-ray examination, over and above a detailed evaluation of the wound.

Treating meniscus tears vary according to the extent of the injury. Depending upon the location and the depth of the tear, various cures can be tried. The healing process, however, depends upon other allied factors such as age, level of physical activities and one's medical history. An external and minor injury is easily mendable. Whereas, graver injuries are resolved through surgical means. The other non-operative means include certain prescribed medicines and specific exercises. Some of the recommended ways of battling a meniscus tear can be enlisted as:

1. Resting the knee by limiting the activities that involve excessive use of the legs or they may potentially strain the leg muscles.
2. Applying ice pack can significantly bring relief to the swelling and the pain in the injured knee. Doctors advice regular use for a duration of at least 15 days.
3. Compressing the knee using an elastic bandage or neoprene sleeve reduces the swelling in the knee.
4. Prescribed medicines in the likes of non-steroidal anti-inflammatory drugs can be effective remedies for a meniscus tear. However, one must mandatorily consult a doctor before consuming such medicines.

All About Torn Meniscus

Like other knee injuries, the torn meniscus can be painful and debilitating. But unfortunately, it is quite common. In fact, a torn meniscus is one of the most frequently occurring cartilage injuries of the knee.

What is Meniscus? 

A meniscus is a C-shaped piece of cartilage present in the knee that acts as a cushion and stabilizes the joint. Its function is to protect the knee from wear and tear. Two menisci are present in each of the knee joints. They can get damaged or torn during activities, which puts pressure on the knee joint or may rotate it.

What causes a meniscus to tear? 

A quick stop or vigorous twist may force the femur to crumble into the top of the tibia. It may potentially tear out the cartilage of the meniscus. It may also occur while doing deep squats or kneeling, especially while lifting a heavyweight. Athletic activities often result in this knee injury, particularly in the sportspersons such as footballers and hockey players. Sports that involve sudden stopping and pivoting such as tennis and basketball may also result in the torn meniscus. Meniscus tears are a special risk in elder people as the cartilage weakens and wears thin over time. As the age progresses, worn tissues become more prone to tears. Just a clumsy twist while getting up from the bed or chair is sometimes enough to cause a tear in case of weakened menisci due to aging.

Symptoms of a meniscus tear: One may hear a popping sound around the knee joint when a meniscus tear occurs. Initially, the pain may not bad but once the inflammation sets in, the knee starts hurting quite a bit. The knee may get stiff or locked. It may become difficult to move the knee in a full range of motion.

Diagnosis of a Meniscus Tear: Diagnosis of a meniscus tear starts with the patient s history and a physical examination. The doctor inspects, palpates, and applies specific diagnostic maneuvers to diagnose a torn meniscus. The McMurray test is used to make the clinical diagnosis of a meniscus tear. The doctor flexes the knee, then straightens and rotates it to put tension on a torn meniscus. The movement will cause a clicking sound if a meniscus tear is present in the knee. A magnetic resonance imaging (MRI) scan is the preferred choice to diagnose the torn meniscus. This technique allows the doctor to evaluate the knee cartilage in a more detailed way.

Treatment of Torn Meniscus: The treatment of a torn meniscus depends on the severity and the location of the tear. If the size of the tear is small and the location is on the outer end of the meniscus, a surgical repair is usually not required. Give rest to your knee as much as possible. The doctor may advise using crutches to avoid putting weight on the legs. Icing the knee every three to four hours for 30 minutes is recommended for this injury. You may use compress bandage to reduce the inflammation. Try to keep the knee in an elevated position to reduce the swelling. NSAIDs may be prescribed to get relief from pain and inflammation. If the symptoms persist, the doctor may advise for an arthroscopic surgery.

Torn Meniscus - What Exactly Is It? 

Myths about Total Knee Replacement

Myth#1 - Knee replacement is a surgery for old people. “I’m too young for a knee replacement.”
Fact - Candidacy for a knee replacement is not based on age, but on the person’s level of pain and immobility. Living with a painful joint that prohibits you from working or participating in normal life activities is an outdated way of thinking. Age is not necessarily a limiting factor. Often times, a patient is actually fearful about the uncertainty of surgery. Once they are able to resume many of the activities they enjoyed before the surgery, with increased mobility and with less pain, they are very happy they had the surgery. The quality of life one achieves by living without knee pain is priceless.

Myth#2 - “I should wait as long as possible to undergo knee replacement surgery” 
Fact - You don't need to suffer by waiting until the pain is intolerable. The longer life of joint replacements enables people to consider surgery earlier and at a younger age. Osteoarthritis is a degenerative disease that continues to damage the joint and delaying surgery makes both surgery and return to activity more difficult. Delaying surgery lowers a patients’ quality of life not only before the operation, but even for up to two years following surgery.

Myth#3 - “I should continue with medications as long as possible”
Fact - Medicines including painkillers just give symptomatic relief for a temporary duration and prolonged usage is riddled with serious side effects such as renal failure, peptic ulceration  etc. All these medicines are NOT curable.

Myth#4 - Alternative therapies such as acupressure, ozone treatment, massage beds, oils, laser therapy, magnetic therapy; braces will cure my advanced arthritis and knee pain.
Fact - Till date there is NO cure for advanced knee arthritis and these alternate therapies are not backed by established scientific data. All these modalities give temporary pain relief in early to moderate arthritis for some duration only and are NOT curative. Often times, a patient who is actually fearful about the uncertainty of surgery lands up trying these in order to avoid surgery. 

Myth#5 - After a knee replacement, it takes months to recover.
Fact - Depending on the activity, most patients who undergo knee replacement are able to perform routine tasks within a few weeks. A return to rigorous activity takes only a few months. One becomes independent for himself before discharge from hospital. There’s no prolonged best rest required after the surgery.


Myth#6 - After knee replacement, I’ll have to give up some activities and sports.
Fact - You have a high probability of getting back to activities like brisk walking or cycling in 6 to 12 weeks. It will take a bit longer to return to more rigorous activities and contact sports. Squatting and sitting cross legged though possible but at best should be kept to minimal.

Myth#7 - Knee replacement surgery leaves a large scar that is noticeable.
Fact - Scarring is minimal compared to traditional surgery. In fact, the scar is typically only 3 to 5 inches long. As time passes, the scar will fade and become less noticeable.

Myth#8 - Knee replacement is a very painful surgery. There is lots of pain in post operative period.
Fact - With modern day pain management such as in a multimodal approach, ensures that the patient does not feel any pain in post op period and has a smooth recovery.

Myth#9 - Knee replacement is done one at a time.
Fact - Both the knees can be operated at the same time if the patient does not have significant co morbidities and is deemed fit to undergo the procedure by the doctor.

Myth#10 - The new knee lasts for 5-6 yrs. only.
Fact - With modern day precision including computer assisted knee replacement and advancement in biomaterials, the survivorship has increased considerably. Today's joint replacements last 25 years or longer and, for most people, will last a lifetime.

Myth#11 - Knee replacement cannot be done a second time.
Fact - Knee replacement can be done multiple times what is called as a revision joint replacement surgery with good survivorship.

Myth#12 - “I am obese, I cannot undergo Knee replacement surgery.”
Fact - Knee replacement can be successfully done in an obese patient though the recovery is somewhat prolonged and might require additional implants. However, patients who are morbidly obese and have restricted mobility primarily due to obesity are better off after a bariatric procedure.

Myth#13 “I have diabetes or hypertension or heart ailment, so  I cannot undergo Knee replacement surgery.”
Fact  - diabetes hypertension or heart.



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 13 Myths About Total Knee Replacement (TKR), Busted!

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