Dr. Abhishek Kumar Mishra

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. 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.

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. A 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, the patient will walk with the help of a walking aid until the knee is able to support full body weight. After six weeks, the 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. If you wish to discuss about any specific problem, you can consult an orthopedist.

The medical term used to describe a broken wrist is wrist fracture. The fracture might be in the 10 bones, which make up the wrist or in the radius. Some fractures can be serious while others may be tiny. The serious fractures make the bone unstable and these might require surgeries to cure. Open fracture is when the bone breaks and it breaks through the skin. This might cause an infection to the wounded area.

• Causes: The most basic cause of a wrist fracture is injury. Any fall on your outstretched hand and you might have to nurse a fractured wrist. This type of fracture is common among sportsmen. If you are suffering from osteoporosis, then you have a high risk of getting a wrist fracture. Traumatic accidents may also cause severe wrist fractures.
• Symptoms: The symptoms of a wrist fracture can be extremely painful. The pain escalates whenever you try to move your wrist or flex it, even if you are just flexing your fingers. Sometimes your hand or arm may even become extremely numb when you fracture the wrist. The muscles in the area become tender and swell up. It is almost impossible to move the wrist after it gets fractured. The fracture causes the wrist or rather the hand to appear deformed. The area around the fracture might even get bruise and a fractured wrist also affects the blood flow in the area. You might even injure your muscles, ligaments, tendons and nerves.
• Diagnosis: To confirm and check the level of severity, you are generally asked to get an X-ray done. In order to get a more detailed look at the fracture, you might have to undergo CT or MRI scans as well. Usually to treat a fracture, you will have to wear a splint and move your hand as least as possible. But keep moving you're your fingers otherwise they might get stiff. Your doctor will inform you from when you will be able to move your wrist. Until then try to keep your movements to the minimal.

Stress fractures are small cracks that may appear in a bone. It occurs due to repetitive application of force in the same area. It is very common among various sports such as running, tennis and football. It may also occur due to osteoporosis as this disorder weakens the bones and allows stress fractures to occur easily.

The majority of stress fractures occur due to overuse of a specific muscle. The bones and the muscles used in a specific movement do not get time to recover, thus leading to stress fracture.

Causes: The major cause of stress fracture is change in physical activity, such as a sudden increase in exercise. The other factors that may lead to stress fracture are -

1. Poor conditioning: If you are starting an exercise regimen without proper preparation, then it may cause stress on the muscles. It is important that you condition your body before doing any intense activity to prevent injuries.
2. Bone insufficiency: Various disorders such as osteoporosis reduces bone strength and increases the likelihood of a stress fracture. If you have low bone density then you are at a higher risk of having stress fractures.
3. Change in surface: Change in surface like shifting from running on grass to road tends to cause more stress on the legs, thus increasing the likelihood of a fracture.
4. Improper form: Performing any exercise with improper form may lead to a number of injuries. It is recommended to learn the correct technique before exercising, so you may use a spotter or a trainer to guide you.

Symptoms: 
The symptoms of a stress fracture are: 

1. Pain: You may experience dull to severe pain if you have stress fractures. The severity of pain will depend on the severity of the fracture.
2. Swelling: Pain may be accompanied by swelling on the sides and the top of the foot.
3. Tenderness: Stress fractures may cause tenderness in the muscles around the affected area.

Shin splints' is a condition, which is characterized by pain in the shin bone, the bone that is present in front of the leg. Shin splints tend to occur quite frequently in runners and dancers as their activities tend to stress the shin bone.

Causes: When excess force is applied to the shinbone, it may result in swelling of the muscles, causing pain and inflammation. It may also occur from stress reactions to fractures in the bone. Cracks tend to develop due to constant application of force in the bones. If the area is not well rested then these cracks will not heal and ultimately lead to a complete fracture.

Some other causes of shin splints are:

1. Muscle imbalance in the glutes or the thighs
2. Anatomical deformity such as flat foot
3. Not using proper form during training
4. Lack of flexibility
5. If you wear improper shoes during workouts, then it may lead to shin problems
6. Running downhill may lead to excessive stress on the shin leading to shin splints

Symptoms:
The symptoms of shin splints are: 

1. You may experience swelling in the lower leg
2. A dull pain in the front portion of the leg
3. Tenderness around the shin area
4. Numbness around the shin area
5. Inflammation in the shin area
6. You may experience severe pain while walking

Treatment: The basic treatment for shin splints is the RICE (rest, ice, compression and elevation) protocol. It means allowing the leg to rest, applying ice packs and wearing compression bandages. It is recommended to take rest and not exert the leg beyond a certain point to limit the damage. The complications that may result from shin splints are compartment syndrome, where there is buildup of pressure in the muscle. In some cases, where the muscle tears off from the bone, a surgery may be required to treat this condition.