Orthopedic doctor Shi Weitong said that the knee joint bears the weight of the human body for a long time, and the long-term wear and tear of the cartilage, coupled with aging, can easily lead to degenerative knee arthritis, resulting in pain, swelling, water accumulation, or joint deformation. It is also the first time for patients to undergo total knee artificial joint replacement. Main reason for surgery.

(Provided by TECO Hospital)

[Reporter Liao Xueru/Hsinchu Report] 65-year-old Aunt Chen usually likes to play badminton with friends. Now that she has retired, she thinks she will finally have more time to devote herself to her hobby. However, she has already accumulated a lot of knee injuries due to her seniority in the game In the past 3 months, my knees were swollen, my knees were painful, my knees were weak, and I couldn’t bend down. I tried painkilling injections, but my knee pumping did not improve. I went to the doctor and found that my knees were degenerated and had osteonecrosis; Minimally invasive artificial knee surgery" combined with ultra-wear-resistant pad replacement, and two months of rehabilitation after the operation allowed her to regain new life in her knees and return to the court as a badminton player.

Shi Weiyi, an orthopedic doctor at Dongyuan General Hospital, said that the knee joint is composed of femur bone, calf bone, kneecap and articular cartilage. Arthritis, which causes pain, swelling, fluid accumulation, or joint deformation, is also the main reason why patients undergo total knee arthroplasty.

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Schwein pointed out that different surgeries have their own indications, advantages and disadvantages, but the size of the artificial knee joint in traditional artificial knee joint surgery is only about 5-6 grades to choose from. The gap will make the patient uncomfortable. For example, if the knee is too tight, the foot cannot be straightened, and it is easy to "break the coffee" when walking, which is unnaturally stiff and tight; if the knee is too loose, the gap in the space is large, and it may be overstretched.

The advantage of minimally invasive surgery of customized artificial knee joint is that it is more in line with natural human mechanics. You can get out of bed and walk the next day after surgery. The surgical effect and postoperative recovery status are not inferior to Da Vinci surgery. , The size of the artificial knee joint is becoming more and more complete, and there are 20 options available. According to the size of the individual skeleton, the most suitable size can be found, which can reduce postoperative discomfort, improve surgical satisfaction, and improve the quality of life and appearance in the future.

Customized total artificial knee joint model.

(Provided by TECO Hospital)

In addition, the most common cause of secondary surgery for artificial knee joints is the wear of the "polyethylene gasket" and aseptic loosening caused by osteolysis.

Traditional gaskets are suitable for the elderly over 70 years old who do not exercise much. The disadvantage is that they are easy to wear and tear, and the service life is about 10 years.

The latest anti-oxidation "vitamin E gasket" can be used by people under the age of 70 who are active and overweight. At present, the wear resistance has reached the highest level, and it is not easy to decay over time. The stable material properties and toughness can To avoid wear and fracture caused by collisions in daily activities, the biological activity of wear debris is also significantly lower, and it is not easy to cause bone dissolution, so the service life is longer (about 30 years, depending on the actual use situation), and it has been widely used at present. Wear-resistant gaskets in artificial knee joints, artificial hip joints, and reverse artificial shoulder joints.

Abrasion of traditional polyethylene liners.

(Provided by TECO Hospital)

Traditional polyethylene liner and new vitamin E liner styles.

(Provided by TECO Hospital)

Shi Weitong said that although the majority of artificial knee operations are for the elderly, there are several situations that may accelerate the wear and tear of the knee, and may face the problem of knee replacement in advance, such as: car accidents, sports injuries (such as broken ligaments without reconstruction) , industrial injury, overweight.

It is recommended to do daily maintenance at ordinary times, which can exercise the muscle endurance of lower limbs and core muscles, control weight, and consume antioxidant food.

For the elderly, the continuous downhill should be reduced, the impact on the knees is relatively large, and avoid sitting on a small bench lower than the knees, as the elderly have difficulty getting up with weak feet.

The most important thing is that if you have pain or discomfort, you should receive examination and treatment from a qualified medical institution as soon as possible, and do not believe in unknown drugs and advertising claims.

Orthopedic doctor Shi Weizhen suggested that for groups with degenerative knee arthritis, the use of "customized artificial knee minimally invasive surgery" is more in line with natural human mechanics, and the most suitable artificial knee size can be used according to the size of the individual's skeleton , reduce postoperative discomfort, improve surgical satisfaction, quality of life and appearance.

(Photo by reporter Liao Xueru)

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  • artificial knee joint

  • Rehabilitation

  • knee pain

  • knee degeneration

  • polyethylene gasket

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