Knee is a hinge joint where the lower leg bone tibia meets the thigh bone femur. During osteoarthritis, cartilage or ligament defects and degenerative arthritis, knee replacement surgery is recommended world-wide to get relief from extreme pain. Knee replacement surgery, also known as knee arthroscopy, is a surgical procedure, in which the affected knee joint is replaced with synthetic material. The most likely candidates for total knee replacement are the patients with severe destruction of the knee joint coupled with progressive pain and impaired function.

Modern technological advances have made computer assisted knee replacement surgery extremely popular around the globe. In this surgery, the surgeon is assisted by a computer to remove the optimum amount and angle of the bone, which otherwise is done by inspecting manually. This is an excellent example of surgery through small incision and it eliminates the chances of human error. A perfect alignment and balance is achieved and hence longevity is also increased to 20 - 30 years. Knee replacement surgery is also specific to gender as the anatomy of male and female patients is different.

There are many types of knee replacements, most common being the total knee replacement or Total Knee Arthroplasty. In addition, there is partial knee replacement, bilateral knee replacement, revision knee replacement and knee arthroscopy.

In knee replacement surgery, the worn out surfaces of joints of knee are replaced with artificial implant of plastic and metal. The lower end of the femur bone is removed and replaced with a metal shell. The upper end of the lower leg bone (tibia) is also removed and replaced with a channelled plastic implant with a metal stem. A plastic ball is also added under the kneecap depending on its condition. These artificial components are commonly referred as prosthesis. The design of these highly flexible implants replicate knee, with the rotating knee replacement implants assist in backward and forward swing of the legs.

Patients whose knee joints have been damaged by either trauma or progressive arthritis should consider total knee replacement surgery. Post-surgical hospital stay after knee joint replacement is usually three to five days. The surgery has a very high success rate and shows dramatic improvement after a month. This improvement is most notable one month or more after surgery. The pain caused by the damaged joint is reduced significantly when the new gliding surface is constructed during surgery. Initially, patient will walk with the help of a walking aid until the knee is able to support full body weight. After six weeks, patient can walk comfortably with minimal assistance. Patients with artificial joints are prescribed to take antibiotics during the course of any elective invasive procedures including dental work. Physiotherapy is an essential part of rehabilitation and it will increase the muscle strength and patient can enjoy most activities, except running and jumping.

Knee Replacement

We have 207 bones in the body and breaking of any one of them can be extremely painful. Broken bones are called fractures and are most often a result of accidents. The risk of breaking a bone depends largely on your age and fractures are most commonly suffered by children and elderly people. There are many types of fractures. The most important amongst these are:

Complete or incomplete fractures: This refers to the way a bone breaks. A complete fracture involves the breaking of a bone into two or more separate pieces while in an incomplete fracture, the bone does not break all the way through and may only be cracked.
Compound fractures: Compound fractures are also known as open fractures. This refers to fractures where the bone tears through the skin.
Simple fractures: Fractures where the bone does not tear through the skin are known as simple fractures. This can be further categorized as greenstick fractures, transverse fractures, oblique fractures and impacted fractures.
Severe pain is one of the most common symptoms of a fracture. Other symptoms include swelling or bruising over the bone area, loss of function and deformity. Any form of a fracture needs medical attention. In most cases, using a splint to reset and support the broken bones can help heal them. This process can be surgical or non-surgical depending on the extent of the fracture. In some cases a pin or metal plate may need to be implanted along with the bone to give them support while they heal.

Fractures can be easily prevented. In your home look out for things you could trip over or bang into. Keep all stairways clear of obstructions and do not use them when wet. Advise your children not to run in the house as tiles are slippery and they could fall and hurt themselves this way.

Follow general safety precautions like wearing a seatbelt while driving or wearing a helmet while riding a bike or bicycle. This can significantly reduce your chances of breaking a bone if caught in an automobile accident. 

The weaker your bones, the easier they are to break. Eat food rich in calcium and vitamin D to build stronger bones. Milk and other dairy products are rich in calcium while the best way to get vitamin D is by exposing yourself to the early morning sunlight.

If you suffer from osteoporosis, exercise regularly to improve your balance and increase the strength of your bones and muscles. Your doctor may also prescribe medication for the same.

Fractures - How They Can Be Prevented?

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

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?

Bones are similar to a porous framework which is filled with minerals that make it hard and strong. With age, there is gradual degradation and the mineralized portion is lost, thereby leading to thinning of the bone. The word osteoporosis literally translates to porous bones, which is due to the gradual demineralisation. In addition to the natural ageing process, there are other diseases that can accelerate the demineralization process.

Women are more prone to demineralisation, and after the age of 40, they should take extra precaution to slow down the onset of the condition. The following are some ways to improve bone health and halt osteoporosis in the long run-

Diet: Ensure that your diet has sufficient amounts of vitamin D and calcium. Though calcium is the essential mineral for bone formation, vitamin D is required for the absorption of calcium, and therefore both these elements play a vital role in maintaining the quality of the bones in our body. Most people require about 1,000 mg of calcium and about 500 units of vitamin D for optimal bone health. This requirement goes up slightly in postmenopausal women.

Sun Exposure: In most people, exposure to the sun allows the body to make vitamin D, but careful sun protection prevents this from happening. Also, with age, the body s ability to form intrinsic vitamin D also declines. The body, therefore, relies on supplements. Most dairy products are good sources of calcium. In addition, spinach, salmon, turnips, and broccoli are some calcium-rich foods. Supplements of calcium carbonate or calcium citrate can be taken if your diet is lacking in calcium. Vitamin D also should be included in the supplementation. The treatment for osteoporosis is incomplete without these two supplements.

Exercise With Weights: The constructive tension that exercise puts on the body helps in bone building, whatever the age may be, which prevents the onset of osteoporosis. Any exercise which improves muscle mass strengthens the bones, and puts stress on the bones is advisable. Since the fractured area due to osteoporosis mainly includes the spine, lower back exercises, yoga, tai chi, and abdominal exercises all work wonders. Pick any of these and do them for 30 minutes three times a week.

Quit Smoking: Continuing to smoke while taking osteoporosis medications is completely useless. Nicotine negates all the effects which defeat the purpose of taking the medication and is as good as taking no medication at all. So if you want the bone thinning to stop, stop smoking.

Alcohol Consumption: While a drink or two per week is permissible, more than this can harm the bones significantly.

Constant Health Watch: Talk to your doctor about how other routine medications (if any) can affect your bone health. Also, identify how frequently you should check your bone mineral density and stick to the schedule.

Bone health and osteoporosis can be managed with some conscious efforts.

Bone Health And Osteoporosis - Know More About Them!

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

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