Total knee replacement is for patients with severe pain and/or severe joint disability due to osteoarthritis, post-traumatic arthritis, rheumatoid arthritis, or previous implant failure.
The total knee joint system consists of femoral condylar , tibial tray,tibial insert and patella.The femoral condylar and tibia tray are made of Co-Cr-Mo in accordance with the quality standards.Tibial insert and patella are made of UHMWPE containing PBHP antioxidants.
The revision knee system is suitable for cemented total knee replacement in patients with severe joint pain or severe disability due to osteoarthritis, post-traumatic arthritis, or rheumatoid arthritis, moderate knee varus, varus, or flexion deformity of the knee, avascular necrosis of the femoral condyle, previous failed knee replacement, osteotomy, or other knee surgery. knee joint replacement,total knee replacement,knee replacement revision,knee replacement procedure Jiangsu Aomed Ortho Medical Technology Co.,Ltd , https://www.aomedortho.com
Total knee arthroplasty (TKA) is a practical and effective method for the treatment of serious knee arthropathy. However, attention should be paid to the selection of indications, the correction of joint internal and external inversion and flexion deformity, and the correct placement of tibial prosthesis to reduce the loosening of tibial prosthesis. At the same time, early functional exercise should be carried out to reduce postoperative complications. Total knee arthroplasty (TKR) provides an effective treatment for patients with severe knee arthrosis.
Persimmon cultivation several notes
Persimmon, a newly emerging seasonal fruit originally introduced from Japan, is known for its sweet and crisp texture once fully ripe. Before ripening, it has a natural astringency that makes it inedible, but after maturation, it becomes highly nutritious, crunchy, and easy to store for long periods. Due to these qualities, it has gained popularity among both growers and consumers. However, persimmon cultivation comes with several challenges, including strict environmental requirements, small fruit size, physiological fruit drop, and vulnerability to pests before harvest. To ensure high yield and quality, proper management practices must be implemented.
First, selecting the right planting location is crucial. Sweet persimmons are thermophilic trees that thrive in regions where the average annual temperature exceeds 10°C. If planted in areas with an average temperature below 13°C, the fruits may not ripen properly and remain astringent. Therefore, astringent persimmons should be grown in regions where the annual average temperature is above 13°C. The trees can tolerate short-term temperatures as low as -15°C, but below -18°C, they risk freezing damage. It’s recommended to choose areas where the lowest temperature does not fall below -18°C to prevent such issues.
Second, promoting fruit enlargement is essential to improve commercial value. Small fruit size is a common problem in persimmon production, often caused by overbearing, poor soil conditions, insufficient nutrients, or years of continuous fruiting. To address this, farmers should focus on soil improvement, proper fertilization, and pruning techniques. Choosing well-drained, fertile soils like sandy loam helps establish strong root systems. Regular cultivation, mulching, and green manure planting enhance soil structure and nutrient availability. Fertilization should include balanced amounts of nitrogen, phosphorus, and potassium, especially during the fruit expansion phase. Water management is also critical—irrigation during key growth stages ensures adequate moisture for optimal fruit development.
Third, controlling flower and fruit drop is vital. Most sweet persimmons rely on parthenocarpy, as they lack male flowers. This can lead to uneven fruit set, especially when new shoots grow rapidly and compete for nutrients. To reduce fruit drop, pollination methods like using "Zunji" varieties with male flowers can help increase fruit setting rates. Proper timing of fertilizer application and irrigation before flowering improves fruit retention. Additionally, managing shoot growth through pruning or chemical treatments like paclobutrazol can limit competition and support better fruit development.
Lastly, pest and disease control is essential to prevent pre-harvest fruit loss. Common pests like the Schizandra caterpillar, along with diseases such as keratopathy, leaf spot, and anthracnose, can cause significant damage. Integrated pest management strategies, including regular monitoring, manual removal of infested fruits, and timely pesticide applications, are necessary. Spraying lime sulfur before bud break and using fungicides like mancozeb and carbendazim during the growing season can effectively manage these threats.
By implementing these practices, persimmon growers can significantly improve productivity, fruit quality, and overall profitability. With careful attention to environmental conditions, nutrition, and pest management, persimmon farming can become a sustainable and rewarding agricultural endeavor.