What are the complications of knee replacement surgery? How can you avoid it?

Knee replacement surgery has complications such as infection, pulmonary embolism, deep vein thrombosis, patellar complications, and prosthesis loosening. After the surgery, the patient should get out of bed as soon as possible, and if the problem is found, the surgery should be performed in time.

It is very likely to cause fractures, gout. If you want to avoid it, you should have a general anesthetic before the surgery, and you must pay attention to rest after the surgery and do not get out of bed and walk around.

Total knee replacement.

The purpose of total knee arthroplasty is to relieve knee pain, correct knee deformity, and improve knee function;

Indications: knee osteoarthritis, knee rheumatoid arthritis, knee post-traumatic arthritis;

Contraindications: knee joint infection (absolute contraindication); neuropathic joints (relative contraindications); unsatisfactory coverage of surrounding soft tissues; Significant ligamentous insufficiency or extensor tendon device insufficiency.

Complications: Recent: surgical injury - nerves, blood vessels; arterial embolism, fat embolism, bone cement allergy, venous thrombosis; senile complications;

Medium-term: swelling, pain, rejection, joint effusion, muscle atrophy;

Late stage: The joint is loose, worn out, and needs to be revised.

Knee arthroplasty is the most advanced surgery in orthopedics, so is it very risky?

Be sure to do 3 to 6 months of ** exercise, and after half a year you can be physically active. To prevent infection after surgery, it is necessary to exercise under the guidance of a doctor.

Patients must pay attention to diet, must pay attention to eat more nutritious food, and it should be noted that after the operation, they must pay attention to rest, do not do some strenuous exercise, under normal circumstances, it can return to normal in about a year.

It should be noted that you should not run after surgery, you should not walk for too long, you should pay more attention, and it will take at least one year for the elderly and at least half a year for the young to return to normal.

There are several of the most common sequelae of knee replacement:

The first is the wear and tear of the joints. In almost all patients, the prosthesis will wear out after a certain number of years, which may be 10, 20 or 30 years, especially the knee joint.

Second, the joints are loosened, the bones are destroyed, and they are already unstable.

Thirdly, there is pain after knee surgery, and the patient wants to squat down, but cannot squat completely. It may be painful when you squat, but it may not be as bad when you walk.

Fourth, if you can't achieve a satisfactory effect, the satisfactory effect is that you can squat completely. For example, a patient cannot go to the toilet by himself and cannot squat completely, especially for female patients.

There are also very fat patients who have problems with squatting in the first place, so they hope to be able to squat after an operation. Although this movement is difficult, it can solve the pain, and it is still more difficult to squat completely. The sequelae after knee arthroscopic surgery generally have muscle atrophy, and functional exercises are required for a period of time after surgery, which can be recovered slowly.

The second is infection, pay attention to wound care after surgery, regular disinfection, keep the ** dry, and need to apply appropriate antibiotics. The third is blood clots, which are bedridden for a long time, which slows down the blood flow rate and makes it easy to form blood clots.

Usually, patients do not need to stay in bed for a long time, and actively perform joint function exercises. Appropriate oral anticoagulants are also needed to avoid excessive blood thickening. At the same time, it is necessary to pay attention to a light diet, mainly active joint function exercises, so as to prevent muscle atrophy, joint adhesion and thrombosis.

1. The majority of people mistakenly believe that knee replacement surgery is to remove all their joints. In fact, the operation is only to remove a layer of the damaged part of the patient's joint surface, and then install the artificial joint of the same thickness on the surface of the lesion excision, just like the principle of porcelain teeth when the tooth is broken.

2. I am worried that I will not be able to move for a long time after surgery and need to be taken care of. Patients in our hospital can walk on crutches for a short time on the first day after surgery, and the range of motion will increase day by day. In general, patients are able to take care of themselves for one week after surgery.

3. Fear of pain. Our hospital will give corresponding drugs during the perioperative period of joint replacement, and many patients will not be painful on the first day after surgery, and there will be analgesic drugs in the subsequent ****, which will not be resistant to drugs, and the effect is also good.

4. Some patients are afraid of failure of surgery. This sentiment is understandable, but knee resurfacing surgery is based on instrument positioning, and there is a standardized instrument positioning for each operation during the operation.

In case of special patients, it can be solved by careful preoperative design and intraoperative adjustment.

5. Worry about the service life of the artificial joint after surgery. At present, a large number of clinical follow-up data show that more than 85% of patients can be used for more than 15 years.

1. Avoid overuse of knee joints, such as climbing, long-distance walking, running, etc.

2. X-rays will be re-examined 3 months, half a year, one year, and every year after surgery;

3. Knee joint function exercise (flexion, straightening, straight leg raising); 4 to 6 weeks postoperatively, abstain from crutches.

4. Continue oral antibiotics for 1 week after discharge;

5. The occurrence of any of the following conditions may indicate revision surgery and therefore require a doctor as soon as possible

1. Redness, swelling, heat and pain in the joint or fluid outflow from a small hole.

2. Feeling that joint movement is not as normal or restricted as in the past.

3. Swelling of the whole limb accompanied by pain or joint deformity.

4. Deformation and pain of the joint after trauma.

I feel most concerned about the physical, mental, operational, behavioural, and medical aspects.

Patients with rheumatoid arthritis, patients with osteoarthritis, etc., these conditions are more serious and need to be replaced because the joint damage of the patient is very serious.

Knee joint disease will appear more in the elderly, if your joint disease has seriously affected your own movement, then you need to replace at this time, or knee joint necrosis, and then the lubricating fluid in the west joint is not enough, then joint replacement will also be required.

1. The patient's knee joint is obviously painful, and the activity is limited, and the pain level is that the walking distance is not more than one kilometer, or even less than dozens of meters;

2. There must be X-ray performance as support, and the joint space narrows when standing;

3. Conservative ** is ineffective, after 3-6 months of conservative**, the effect is not obvious.

The above diagnostic criteria are indispensable, and all of these must be present before knee replacement is considered.

Knee replacement is required if there is a degenerative lesion of the patella, or if the patellar joint is inflamed and the meniscus is damaged and the meniscus is damaged, causing functional degeneration of the meniscus, traumatic arthritis, rheumatoid arthritis, stiffness and deformity of the joint.

No matter how old you are, a defective knee prevents you from participating in the activities you enjoy. Pain and stiffness can even limit your life. Knee problems get worse over time.

Here are some reasons why your knee can be painful.

1.Joint injuries that do not heal well.

2.Chronic illness.

3.Senile injuries.

With a knee replacement, you can spend the rest of your life without having to suffer from knee pain. Total knee replacement surgery almost always relieves your joint pain. Your injured knee joint is replaced by an artificial joint.

Surgery doesn't make you young again, however, the vast majority of patients who have a total knee replacement will get all of the benefits:

1.Joint pain is completely absent or significantly reduced.

3.The quality of life is improved, you are able to complete your daily life with ease and participate in some exercise.

4.For long-term activity, the vast majority of total knee replacements with imported prostheses can last for many years.