The knee joint is one of the most complex and weight-bearing joints in the human body. Statistics show that the prevalence of osteoarthritis among people over 60 years old in China exceeds 55%, with the knee joint being the most commonly affected part. With the accelerated aging of the population and the younger onset of problems such as obesity, sedentary lifestyle, and sports injuries, degenerative knee joint disease is no longer a simple "disease of the elderly", but a public health
Severe Knee Pain: Artificial Knee Replacement Becomes an Effective Treatment for End-Stage Disease
The knee joint is one of the most complex and load-bearing joints in the human body. Statistics show that the prevalence of osteoarthritis among people over 60 in China exceeds 55%, with the knee being the most commonly affected site. With the acceleration of population aging and the younger trend of problems such as obesity, sedentary lifestyle, and sports injuries, degenerative knee joint disease is no longer simply a "disease of the elderly" but a public health issue covering all age groups.
When conservative treatment (medication, physical therapy, intra-articular injection, etc.) cannot effectively relieve symptoms, artificial knee replacement becomes the most effective treatment for end-stage osteoarthritis. Modern knee replacement is a very mature surgical technique: the surgery usually takes 1-2 hours, patients can walk with the aid of a walker 2-3 days after surgery, and after 3-6 months of systematic rehabilitation training, the vast majority of patients can restore their ability to perform daily activities. The service life of artificial knee prostheses is generally more than 15-20 years. With advances in materials science and manufacturing processes, the wear resistance and stability of prostheses continue to improve.
Innovative Design of Huakang Tianyi Knee Prosthesis: A Stability Breakthrough Brought by a Single Radius of Curvature
Beijing Huakang Tianyi Biotech Co., Ltd. has been deeply engaged in the field of knee prosthesis R&D for many years, and multiple innovative technologies have been granted national patents. The company's independently developed patent for "Artificial Femoral Condyle and Artificial Knee Joint" (Patent No.: CN201720104788.X) has its core innovation in the design of the flexion surface of the femoral condyle body having only a single axis of rotation, namely a single radius of curvature. The clinical significance of this design is that during knee flexion, the radius of motion can remain unchanged, thereby keeping the collateral ligaments isometric and stable throughout the entire range of motion of the knee.
This design has been applied in the company's products. According to the company's official product information, its femoral condyle prosthesis (PS prosthesis) maintains a single radius of curvature within the range of 0-90 degrees, which can ensure consistent collateral ligament tension during knee flexion and extension, reduce collateral ligament injury, and increase prosthesis stability. In addition, the product design also includes multiple humanized details: the inner surface of the femoral condyle adopts a patented laser-engraved nub-pattern fixation interface design, increasing the contact area by 30%, thereby effectively enhancing the bone cement fixation strength of the prosthesis; the extended anterior condyle design of the femoral condyle increases the length of the patellar track, builds a patella-friendly interface, effectively prevents patellar dislocation, and avoids the occurrence of patellar clunk and anterior knee pain.
Tibial Plateau System: Optimizing Stress Distribution and Reducing the Risk of Postoperative Complications
On the tibial side of the knee prosthesis, Huakang Tianyi has also carried out innovative designs. Another important patent of the company, "Knee Joint Tibial System" (Patent No.: CN109172052A), proposes a systematic solution to technical problems existing in current products, such as uneven stress distribution, large intraoperative bone resection, and easy loosening between the tibial insert and the tibial tray.
This tibial system adopts an innovative structural design, allowing the tibial insert to be stably fixed in the tibial tray, effectively reducing micromotion wear and decreasing the occurrence of osteolysis around the joint system after surgery. The tibial tray has a concise structural design and flexible manufacturing process; it can be processed from forged or cast parts, or directly machined from bar stock to achieve stable production. The tibial insert adopts a spherical arc surface design, which can obtain greater rotational freedom and has advantages such as simple structure and convenient use.
The core goal of these designs is to enable the joint prosthesis to better simulate the biomechanical characteristics of a natural knee after implantation in the human body, achieve balanced stress distribution at the proximal tibia, thereby extending the service life of the prosthesis and reducing the risk of revision.
"Industry-University-Research-Clinical" Collaborative Innovation Mechanism Drives Product Iteration
The continuous innovation of Huakang Tianyi's knee products is inseparable from the support of the company's "industry-university-research-clinical" collaborative innovation mechanism. Relying on a strong R&D team, the company carries out cooperative projects with many famous universities and hospitals. Its expert advisory team mainly comes from many well-known domestic medical institutions such as Peking Union Medical College Hospital, Peking University People's Hospital, Beijing Jishuitan Hospital, and China-Japan Friendship Hospital.
The company has established the Beijing Huakang Orthopedic Academic Alliance and Technology Research Center, committed to the R&D of new orthopedic products and technologies and the application of new materials, continuously developing and producing orthopedic products more suitable for the skeletal anatomical characteristics of Chinese people. The biomechanics laboratory and large-scale 3D orthopedic database provide data support for product innovation, making originally complex and highly difficult orthopedic surgeries simpler and safer.
