Lin Yuan, a doctor from Shandong Orthopedics Department, said: Osteoarthritis of knee joint is a common chronic joint disease, which is caused by many factors and is characterized by articular cartilage degeneration and secondary bone hyperplasia around joints. More common in people over 50 years old, slightly more women.

When does knee osteoarthritis need to see a doctor?

In case of the following situations, you need to seek medical advice in time:

1. Knee pain or increased pain when squatting, standing up and going up and down stairs.

Second, the knee joint feels stiff in the morning, and it will be relieved after a little activity.

Three, knee flexion and extension activities will hear a click, feel friction and pain.

Fourth, the pain in the knee joint is aggravated after catching cold.

Five, knee joint deformation, poor mobility, squatting up, climbing up and squatting up.

Methods to prevent knee osteoarthritis:

1, lose weight

Knee joint is the main load-bearing joint of human body. The greater the weight, the greater the pressure on the knee joint and the faster the wear. In recent years, patients with knee arthritis caused by weight account for a large proportion in the patient population.

2. Try not to wear high heels.

High heels make people's center of gravity lean forward. In order to maintain the stability of the center of gravity, the local pressure of the knee joint increases, which easily leads to the relaxation of the knee joint ligament and cartilage wear over time. It is suggested that women wear more flat-heeled soft-soled shoes in their sexual life to absorb the shock and balance the load on the knee joint.

3. Reduce frequent climbing and long walking.

Modern people like climbing mountains, stairs and walking fast to keep fit, but if it is excessive, it will also bring negative effects, which will accelerate the wear of knee cartilage and accelerate the occurrence of arthritis. Many young patients have early onset of osteoarthritis after frequent mountain climbing and stair climbing. Walking exercise is simple and effective. It is suggested that you should not exceed 100 steps per minute and exercise for no more than 1 hour to protect your joints. Warm up fully before exercise.

4. take vitamin ACE and supplement D.

The rate of knee arthritis in women is much higher than that in men, especially after menopause, because of the large decline of estrogen in the body, cartilage becomes thin and brittle and does not wear. For women, getting more sunshine, drinking more milk, taking vitamins A, C and E and supplementing vitamin D have a good preventive effect on osteoarthritis.

Functional exercise methods for knee osteoarthritis

1, isotonic contraction training of quadriceps femoris

Straight leg lifting and forging training: lie on your back, straighten and lift your lower limbs, keep your heel about 15-30cm away from the bed surface for 20-30s, rest for 5 5- 10/0s, and then lift it to repeat the training.

2. Isometric contraction training of quadriceps femoris

The patient takes supine position, the knee joint is straight, and the quadriceps femoris contracts as much as possible, keeping 10- 15? S, relax 5? S, repeated training.

3, knee flexion and extension activities

The patient sits by the bed, puts his knees on the bed, and then straightens his knees as far as possible, keeping a straight posture. 10- 15s, bends his knees slowly and exercises repeatedly.