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

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

Taking into account the hectic lifestyle we lead, most of us end up suffering from aches and pains. But that does not mean we have to continue to suffer from them. There are plenty of easy exercises that one can follow in order to keep themselves healthy and problem free!

In order to avoid aches and pains, the first thing that a person needs to do is 

Practice hamstring stretches regularly: What this entails is that he or she needs to lie on the back, raise a leg and hold the back of it with both hands. While it may be called the hamstring stretch and one would probably normally think that the beneficial impact of doing it would be limited to the hamstring, it works quite a bit of special magic which has an ability to ease the pain in the lower back. Now, for an exercise which is so simple, is it not worth it?
Side Stretch: Talking about stretches, another form of a stretch happens to be the side stretch. Even this is rather simple and all that needs to be done is to lie on one s side and pull the ankle of the leg which is not in contact with the ground towards the back. While this is being done, the ankle of the lower leg should apply pressure on the thigh.
Straight leg raise: It may seem that most of the exercises which reduce pain are stretches! However, this is not really the case as there is a place for exercises such as the straight leg raise and the like. What exactly is the straight leg raise? Well, it can be done when a person is either in a sitting position or is lying on his or her back. The toes are to be kept pointed upwards and the leg is to be raised. It is to be kept in mind that the challenge of the straight leg raise is that the knee should not be bent, at all.
The cat and camel exercise: The terms cat and camel generally refer to members of the animal kingdom. However, jointly, in terms of exercises, the cat and camel is an exercise well worth remembering as it can save the individual quite a lot of pain. All that needs to be done is to alternatively arch one s back towards the floor and the ceiling while resting on one s hands and knees.
While our way of living may come with certain side-effects ,but it would not be right to say that we are helpless. We need to take charge and make little changes to enjoy a healthy and happy lifestyle.

4 Easy Exercises for Aches And Pains

Ayurveda is a very old system of medicine, which originated in India. Using herbs found in nature to cure various illnesses, knee pain can also be permanently cured with this method indigenous to India. It reduces knee pain caused by various illnesses including arthritis, inflammation of the cartilage and wearing of the patella among others. Here are some common Ayurvedic remedies, which help reduce knee pain:

1. Alfalfa: Alfalfa is medically known as Medicago Sativa. Alfalfa is excellent for making sure that your joint pain reduces, when taken in liquid form four times a day.

2. Ashwagandha: Ashwagandha is medically known as Withania Somnifera. In the West, Ashwagandha is popularly known as Winter Cherry. Also, it has a lot of therapeutic properties, which include reducing joint pains. 

3. Banyan: The Banyan tree's medical name is Ficus Benghalensis. It has a sap very similar to the form of rubber known as latex is derived from the Banyan tree. The Banyan tree's sap is externally applied over the joints and the pain usually disappears after a few regular applications. 

4. Bishop's weed: The medical name for Bishop's weed is Trachyspermum Ammi. The oil extracted from this herb is usually applied to the knees to reduce the intensity of such knee pains.

5. Celery: The medical name for celery is Apium Graveolens. Celery is not only an effective treatment for rheumatoid arthritis and associated pains in the knees, but it is also helpful in treating gout. It is usually agreed upon that this particular treatment is usually long lasting because of its alkaline nature.

6. Dandelion: Dandelion's biological name is Taraxacum Officinale. It is rich in magnesium and is crucial for the correct mineralization of the bones. This mineralization allows the bones to become stronger and also prevents knee pain.

7.  Garlic: The medical name for garlic is allium sativum. Five to six cloves eaten everyday has proved to reduce knee pains.

8. Ginger: Ginger is biologically called Zingiber Officinale. These can be easily included in your diet and go a long way in curbing knee pain.

Ayurveda and Knee Pain

Did you know that in addition to your diet, exercise is one of the best ways to make sure that you never lie on a hospital bed with a surgeon treating you for a bone disorder? Medical expertise has constantly pointed out to the fact that regular exercise makes your bones less likely to suffer from wear and tear during old age.

As you exercise, your muscles become stronger, your bone density increases and your balance improves. Of course, it goes without saying that you need to follow certain precautions before you exercise to avoid certain injuries.

Before starting any exercise program, make sure that you prepare your body for exercise. A brief warm up helps you to get your muscles ready for exercise. It also makes sure that your chances of injury are drastically reduced.

Here are some tips to keep your bones healthy:

Weight lifting: Weight lifting is a type of exercise that, if done correctly, will be extremely beneficial for your bones. You can opt for simple bodyweight exercises such as pushups and squats, which build muscle as well as strength. Avoid using very heavy weights as it causes back-related problems such as slipped disk.

Yoga: Yoga is another method of exercise which is very beneficial for bones and joints. The premise of yoga is static strength building wherein you hold a pose or an exercise for a certain period of time; this helps in strengthening your muscles. Along with your muscles, your bones also become stronger as you get fitter. Yoga is repetitive stress which is good for flexibility and hence keeps your joints supple and muscles in good shape. There are certain asanas which are weight bearing and anti-gravity postures can strengthen your bones. 

Swimming: Swimming again is a good aerobic exercise and is good for back and over all fitness but doesn't strengthen bone per se. It is a way to keep you healthy. Swimming is a cardiovascular exercise, which is also known for its calorie burning capabilities. It is also very effective is incinerating fat and keeping your skeletal system healthy. Whereas walking and jogging and running certainly build your bones as they are weight bearing exercises.

Pilates: Pilates is a new form of exercise that has been gaining a lot of steam lately. It does not require much equipment, as you can get started with just a mat. It is very effective in working your spine and the hips, thus keeping your lower back strong. A weak lower back increases the chances of bone disorders drastically.

How Exercise Can Help In Keeping Your Bones Healthy?

Care for shoulder pain and related problems

Shoulder problems usually happen because of internal problems or external trauma. People who are into any form of manual labour, pick up a lot of heavy things regularly or play sports experience shoulder pain at some point of time or other. Shoulder pain can be detected by physical examination, mri, x-ray, ultrasound and medical history.

The most common types of shoulder problems are arthritis, fracture, dislocation, frozen shoulder, rotator cuff tear, and rotator cuff disease. Cures for the different shoulder pains are different. Follow these simple ways to help you manage the pain.

1. Rest the hurtful shoulder: you need to take ample rest. Using the arm which is affected is not a good idea and needs to be avoided. If your job involves manual labour, it is advised that you stay at home to rest.

2. Ice pack healing: applying ice pack on the wound is also advised around 3-4 times in a day. This varies as per the kind of shoulder pain, so doctor's advice must be followed.

3. Be consistent with exercise: depending upon the source of pain, physiotherapist will advise certain sets of shoulder exercises. It is very important that they should be performed diligently for fast recovery.

4. Support it well: wearing a sling is extremely important and should not be taken lightly at any point of time. A good support will ensure there is no mislocation and faster recovery.

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Shoulder Pain Care - 4 things you must not ignore!

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