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 knee is guarded and cushioned by a cartilage known as meniscus. A meniscus tear, therefore, is an extremely painful and discomforting situation. It occurs very frequently and has emerged as one of the most commonly occurring cartilage injuries. What makes a meniscus tear an extremely common phenomenon is the way it can tear that is all it takes is a twist of the knee for it to happen.

People involved in sports mostly face the brunt of this form of injury. The risk of getting meniscus torn increases with age and tends to occur at the slightest change of direction of movement. 

Symptoms 
Some of the symptoms of a torn meniscus are:
1. Pain and inflammation: it goes without saying that an internal injury of the cartilage or tearing away of it would inevitably result in extreme pain and inflammation near the knee.
2. Immobility: the extreme pain and inflammation, which follows will inevitably make it difficult to move. Since the pain occurs in the joint, you will have difficulty in walking and any forceful movement will only aggravate the pain.
3. Locking of the knee: locking of the knee refers to a situation when you are unable to move your knee. This occurs most commonly after you have your meniscus torn.

Treatment
Notwithstanding its frequency of occurrence, there are several ways, by which you can treat a torn meniscus. Some of the ways are:
1. Apply ice: in order to get some relief, applying ice is a suitable option. If you apply ice every day for some time, it wonders in reducing swelling and the consequent pain.
2. Use a bandage: in order to control the swelling, it is important that you cover your knee with an elastic bandage.
3. Change the posture: it is important that you keep the affected knee in an elevated plane, in order to ensure an efficient blood supply and a consequent relief from pain.

Some medical treatments
There are many things to consider when deciding how to treat your torn meniscus, including the extent and location of the tear, your pain level, your age and activity level, your doctor's preference, and when the injury occurred. Your medical treatment choices are:
1. Nonsurgical treatment with compression, elevation, and physical therapy. This may include wearing a temporary shoulder brace.
2. Surgical repair to sew the tear together.
3. Partial meniscectomy, which is surgery to remove the torn section.
4. Total meniscectomy, which is surgery to remove the entire meniscus. This is generally avoided, because this option increases the risk for osteoarthritis in the shoulder.
5. Whenever possible, meniscus surgery is done using arthroscopy, rather than through a large cut in the shoulder.

Symptoms and Treatment of Torn Meniscus

Knee pain or injuries are very common and have numerous causes. Knee pain can emerge from delicate tissue wounds like ligament sprains and muscle strains. Bone conditions like knee joint pain, Osgood Schlatters, and biomechanical dysfunction can also cause knee pain. Treatment can include basic knee mobilization techniques, taping, massages or knee strengthening exercises completely through a careful recovery method after knee replacement or reconstruction.

Physiotherapy can help you overcome the pain and increase your strength and flexibility. A physiotherapist can suggest you a number of treatments and also help you understand your issue and get you back to your everyday routine. Physiotherapists are said to be successful in getting rid of the source of the knee pain by diagnosing a cause. This includes tightness around the knee and treating it with stretching and exercises.

Following are some of the exercises a physiotherapist might generally recommend for knee pain:

Hamstring stretch: Stretching keeps you flexible and increases your scope of movement, or how far you can move your joints in different directions. It additionally helps you reduce your chances of injuries and pain. Continuously warm up with a five minute walk first. Lie down when you are prepared to stretch your hamstring. Circle a bed sheet around your right foot, use the sheet to pull the leg up and hold for twenty seconds and then lower the leg. Repeat twice and switch legs.
Calf stretch: Use a chair for balance. Bend your left leg. Step back with your right leg and gradually straighten it behind you. Press your left heel toward the floor. You should feel the stretch in the calf of your back leg. Hold for 20 seconds. Repeat twice and then switch legs.
Straight leg raise: It helps build muscle strength to give support to the weak joints. Lie on the floor. Twist your left knee, foot on the floor. Keep the right leg straight, toes pointed up. Tighten your thigh muscles and raise your right leg.
Quad set: With these, you don't raise your leg. Just tighten the thigh muscles, also called the quadriceps, of one leg at once. Begin by lying on the floor. Keep both legs on the ground, loose. Flex and hold the left leg tense for five seconds and then relax. Do three sets of ten repetitions. Switch legs after every set.
Cushion squeeze: This move strengthens your legs from the inside so that they can support the knees. Lie on your back, both knees facing inwards. Place a cushion or a pillow between the knees. Press your knees together, squishing the cushion between them. Hold for five seconds and then relax. Do three sets of ten repetitions. Switch legs after every set.
Heel raise: Stand tall and hold the back of a seat for support. Lift your heels off the ground and rise on the toes of both feet. Hold for three seconds. Gradually lower both heels to the ground. Do three sets of ten repetitions. 

Knee Pain - How Physiotherapy Can Heal Knee Pain?

Three Ways to Protect Your Knees

The knee is known as the largest and one of the most complex joints in the human body, and also one of the most vulnerable, as it supports the weight of the entire body. The knee joint is made up of several elements including the knee cap, meniscus, connective tissue, tendons, ligaments, cartilage, and muscles. Damage to any part of the knee can cause chronic pain. So how can you protect your knee from damage and injury? Take a look at these three points!

Dealing with Load: Weight is a big one. Carrying around extra pounds and kilograms can be detrimental for your knees in the long run. Your knee is not equipped to handle the excessive weight. It already supports three to five times your weight when you get up and walk around or indulge in some mild jogging. One must be careful of those extra pounds to take the load off the knee and keep it from falling prey to damage.

Exercise: Moderate to intense exercise is prescribed for one and all. This, of course, depends on one's overall health and age. If you are already suffering from joint pain, then you may want to go easy on the exercise with a focus on building muscle strength and foundation. If you are healthy, then some amount of daily exercise as a routine will keep those knees in prime working condition and well lubricated as well. Inactivity and a sedentary lifestyle can affect the knees very badly.

Do not Ignore: Warning signals such as chronic or acute knee pain should not be ignored. Remember to see a doctor or an orthopaedic specialist to find out if you have contracted an infection or if you may have suffered a fracture due to an injury. Also, it is important to take a bone density test regularly, especially after the age of 40 or for women going through menopause, as this will point to any deficiencies and even warn you in case there is any trace of osteoporosis.

Rest, exercise, and food should be kept in fine balance for a healthy body. These are a few measures that one can take to keep knee pain at bay. Yet, it is also advisable to speak with a doctor at length regarding measures to protect your knees.

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Three Ways to Protect Your Knees

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

Causes and symptoms of knee pain

Knee pain is characterized by a feeling of pain in the knee joint caused by injury or overuse. The knee joint consists of small bone structures, the kneecap, supporting ligaments and cartilage of the knee. This joint bears the full weight of the body, which makes it very vulnerable to injury.

Causes of knee pain

Knee pain is usually caused by injuries to the knee such as exposure to a direct force on the knee, abnormal twisting of the knee or falling on your knees. Some causes of knee pain are -

Knee strains and sprains - Overworking the knee joints can damage the tissues of the knee joint resulting in knee sprains and strains

Osteoarthritis - it is condition where the protective cartilage around the kneecap is damaged, resulting in knee pain

Bursitis - Excessive movement of the knee or kneeling down for extended periods can irritate the bursa (a fluid sac below the skin above the knee joint) that causes swelling and pain, thereby giving rise to this condition

Gout - This condition is characterized by the accumulation of uric acid in crystal form around the knee joint, causing inflammation and pain

Tendon disorders - Tendons connect the muscles to the bones, and overworking the knee can cause the tendons around the knee to become sore and painful

Kneecap dislocation - Injuries may cause the kneecap to shift out of its position, this causes swelling and pain in the knee joint

Symptoms of knee pain

Severe knee pain can restrict movements such as walking or standing. The symptoms vary according to the extent of the damage suffered by the knee. Most common symptoms of knee pain are problems in climbing stairs, inability to extend the knees, limping and swelling of the knee joint. In some cases, knee pain may also cause fever.

Causes and Symptoms of Knee Pain

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