With the younger-age trend of total hip arthroplasty (THA), the number of patients undergoing THA revision is increasing. Clinical literature has shown that the rate of hip revision is significantly higher in younger and more active patients, with a 15-year prosthesis survival rate of only about 60%.

Why is the survival rate of the prosthesis low? What can we do in the prosthesis design?

As a professional Hip Joint System Replacement Manufacturer, the “3D SEE® trabecular metal hip prosthesis system” released by the JUST MED has given the perfect solution.

Statistics on the reasons for the revision of the multi-country registration center in 2016 show that aseptic loosening is the main reason for postoperative revision.

At present, there are many basic and clinical studies on aseptic loosening, which are mainly divided into mechanical mechanisms and biological mechanisms.

The mechanical mechanism plays an initial role in the occurrence of aseptic loosening, mainly including two aspects:

1. Micromovement

Excessive micromotion of the prosthesis-bone interface can affect the tight binding of the bone to the Prosthesis. When the micro-motion of the prosthesis-femoral interface is greater than 150 μm, bone formation is inhibited, resulting in formation of a fibrous membrane. Micromotion can also directly lead to osteolysis, increasing the risk of aseptic loosening.

JUST 3D SEE® trabecular metal cup, modular femoral stem and sleeve use 3D printed electron beam fusion molding technology. The friction coefficient of sleeve trabecular porous layer is up to 1.08 to minimize Micromovement.

Hip joint interface gold standard — 3D printing titanium metal trabecular porous structure

At the same time, the porous trabecular bone layer of 3D SEE® trabecula metal cup and sleeve is a three-dimensional through-hole structure with a porosity of 75%-80% and pore diameter of 600-800μm. It has excellent bone ingrowth effect to ensure the long-term stability after implantation.

3D SEE® trabecular metal modular femoral stem: The head-neck, sleeve-stem of the stem body are tapered to minimize micromotion.

2. Stress Shielding

Digas found that stress shielding is involved in the loss of bone density around the uncemented press-fit cup, which in turn causes the prosthesis loosening. At the same time, in some clinical studies, the proximal femur is also a high-incidence area of stress shielding.

3D SEE® trabecular metal modular cup and sleeve are of 75%-80% porosity and the elastic modulus close to cancellous bone to minimize stress shielding.

3D SEE® trabecular metal modular femoral stem: different types and specifications of trabecular sleeves ensure the proximal intramedullary filling to achieve stress distribution to the proximal end and reduce the stress shielding of the proximal femur. The distal torus coronal “tuning fork” design reduces stiffness and minimizes stress shielding.

The biological mechanism plays an important role in the late stage of aseptic loosening of artificial joints. Due to the effects of different levels of particles, cells, molecules, etc., the polyethylene particles produced by the wear of the main prosthesis produces macrophages, which eventually leads to osteolysis.

JUST MED adopts the international clinical mainstream low-friction interface prosthesis: ceramic head to highly cross-linked liner to ensure safety while minimizing wear.

The design of the 3D SEE® trabecular metal hip prosthesis system minimizes the incidence of aseptic loosening, ensures the long-term survival rate of the prosthesis, and helps doctors bring healthy life to patients by starting from mechanical mechanisms and biological mechanisms!

Looking for more information about Hip Prosthesis Accessories, welcome to contact us.

Harmony Hip Joint System

Product features:

1. Long-term and effective fixation- Ti+HA double coating;

2. The thickness of vacuum plasma-sprayed titanium porous coating and HA (hydroxyapatite) coating is 0.375mm, provides the optimal press-fit fixation effect;

3. “Stepped” coating fixation;

4. More than 15 years of clinical validation in safety and effectiveness;

5. Taper locking mechanism facilitates liner implanting, minimizes wearing;

6. Liner features 10 degrees design, which increases stability and range of motio.

Technical parameters:

1. Material: Ti6Al4V (Stem/Cup)+ Imported PE (Liner)

2. Coating: Ti+HA (Vacuum Plasma-sprayed)/ Vacuum Plasma-sprayed/ Atmospheric Plasma-sprayed

Payment：T/T Bank Transfer, Credit Card, Western Union, Paypal, etc.

hip prosthesis manufacturer:Just HuaJian Medical Device(TianJin)Co.,Ltd.

Packaging & Delivery

Packaging	Inner: Three layers of sterile package, both are Tyvek   + PETG heat-sealing package, covered by carton and heat shrinkable filmsExternal: Standard carton
Lead Time	7-21 days (To be negotiated)
Delivery	Door to door (DHL/TNT/UPS/FEDEX/EMS, etc.)

We hip prosthesis exporter is specialized in knee preservation surgery prosthesis, Acetabular Cup System hip prosthesis, Long Hip Joint System replacement material and Knee Joint Replacement Surgery Instrument Set. If you need, please  inform us.

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Hinged Rotating Knee System

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Prompt response to enquiry in 24 hours.

Competitive prices and no MOQ requirement to help customers test the quality and market.

High quality with ISO, CE certified.

Proficient delivery and export handling.

Surgical technique training and workshop in China and sending surgeons to demonstrate and support surgery for distributors.

Sponsorship in advertisement and expo.

Training course for technicians of distributors CME meetings

Hip prosthesis manufacturer:Just HuaJian Medical Device(TianJin)Co.,Ltd.

Packaging & Delivery

Packaging	Inner: Three layers of sterile package, both are Tyvek   + PETG heat-sealing package, covered by carton and heat shrinkable filmsExternal: Standard carton
Lead Time	7-21 days (To be negotiated)
Delivery	Door to door (DHL/TNT/UPS/FEDEX/EMS, etc.)

Find here details of selling partial knee replacement recovery, Hip Joint System prosthesis, Hip Joint Replacement Surgery Instrument Set, you will get more information about Joint prosthesis price. All the products with super quality and competitive price.

More Product Please View Hifactory.

At present, the artificial joints of the three materials widely used in clinical practice have their own advantages and disadvantages, and the choice of artificial joint materials mainly refers to the choice of friction interface. The wear rate of the friction interface determines the joint usage time. The acetabular cup system hip prosthesis manufacturer and you share the classification of the acetabular cup.

At present, the friction interface of the hip replacement prosthesis can be roughly divided into the ceramic head to ceramic, ceramic head to polyethylene, metalhead to polyethylene, metalhead to metal.

Ceramic head + ceramic cup: the cost will be relatively high. The main advantage of this combination is that it is relatively more durable. In ceramic and ceramic friction, the same load, wear relative to the metal interface is much smaller, and because of wear residual in the joint cavity particles are also very few, basically will not appear the body to wear particles rejection. But ceramics are brittle, and in extreme activity or poor posture, there is little risk of breakage. There are very few patients in the activity that will appear “creak” ceramic friction produced by the abnormal sound.

Metalhead + polyethylene cup: a long history of application, is a more classic combination. Metal on ultra-high molecular polyethylene, generally will not appear in the activity of abnormal sound, there will be no fragmentation and other conditions. However, compared with the ceramic-to-ceramic friction interface, it wears a little more at the same load for the same time. In a very small number of sensitive patients, it will react to the worn debris, causing inflammation around the wear debris, and gradually appear pain around the prosthesis and loosening of the prosthesis.

Metalhead + metal bushing: Metal-to-metal friction interface (cobalt-chromium, sometimes stainless steel) This friction interface has been in use since the 1960s. However, the interface can generate a large amount of metal wear particles, which can be swallowed by macrophages to produce a foreign body reaction, and the metal ions generated by the abrasion may also enter the blood, causing an allergic reaction of the body. In recent years, such interface joints have been deactivated.

Ceramic Head + Polyethylene Cup: The ceramic head is harder than metal and is the most scratch-resistant implant material. At present, the ceramic used in joint replacement surgery, its hard, scratch-resistant, ultra-smooth surface can greatly reduce the wear rate of the polyethylene friction interface. The potential wear rate of this implant is less than that of metal to polyethylene. In other words, ceramic to polyethylene is theoretically more wear-resistant than metal to polyethylene.

There are many types of artificial total hip joints, the design is constantly improving, and the materials are constantly improving. At present, ceramic-to-polyethylene joints are the most widely used in clinical applications.

Our company also sells Hip Spacer Mold, please feel free to contact us.

The acetabular cup system hip prosthesis manufacturer shares the hip prosthesis material classification with you.

Total hip replacement is a type of prosthesis similar to the human skeleton that can replace the injured joint or joint surface due to disease or injury, relieve joint pain, correct prosthesis deformity and improve joint mobility. Now more and more applications in clinical. For patients who are going to have a hip replacement, or who are going to have a hip replacement later on, a very important moment is the choice of a hip prosthesis.

Currently, the commonly used materials for hip replacement implants are mainly metal materials, polyethylene materials and ceramic materials.

Metal materials: They are widely used in artificial joint materials because of their good mechanical properties, ease of processing and reliability. They are often used to make artificial joints that are complex in structure and must withstand great strength.

However, the materials used to make the metal friction surface are heavy metals, and the heavy metal ions that are worn out will not cause harm to the human body. There is no final conclusion yet.

Heavy metal ions may have an impact on fetal development in women of childbearing age who are pregnant with a baby. Because heavy metal ions are mainly excreted through the kidneys, patients with renal insufficiency should not be used.

Polyethylene material: It has ultra-high score and high wear resistance. It is used in the inner cup of bone cement type acetabulum or acetabulum. It is an ultra-wearing “plastic”. However, the wear particles can induce macrophage reaction, leading to osteolysis, which is the main reason for the long-term loosening of the joint.

Ceramic materials: with good biocompatibility, ultra-high hardness, wear resistance and corrosion resistance, can solve the problem of bone dissolution caused by wear particles of metal and polymer prosthesis materials; The ceramic also overcomes the problem of the prosthetic releasing metal ions in the body.

Ceramic materials have good hydrophilic properties and can be used as joint implantto ensure the lubricity of joints. However, the problem of ceramic prosthesis breakage may occur during joint replacement, resulting in failure of the prosthesis.

JUST MEDICAL will attend the MEDICA 2019 at Dusseldorf, Germany. It will be held in 18-21 Nov, 2019. Welcome to meet us at Hall 7.1, booth B34-4!

Email: Sales@justmedical.cn

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Hip surgery consists of an artificial acetabulum and an artificial femoral head. In the past, both of them used metal, and there were many complications in practice. At present, acetabular acetabulum made of ultra-high molecular polyethylene and artificial femoral head made of low-strength modulus metal are used at home and abroad. There are many types and designs of artificial total hip joints, mainly the diameter of the femoral head and the design of the acetabular surface fixed with the bone. The thicker acetabulum, the total hip with a relatively small diameter of the artificial femoral head, has small head rubbing force, stable artificial sputum, and small local reaction. In addition to the complications of artificial femoral head replacement, the complications of hip surgery include the loosening of the artificial acetabulum, dislocation and local reaction caused by the wear of the ultra-high molecular polyethylene surface in the weight-bearing area. This type of surgery is mainly suitable for those who have the following indications when they are over 50 years old. It is feasible to have total hip replacement. Those who are under 50 should be cautious. For example, the acetabular destruction is heavy or has obvious degeneration, the pain is heavy, and the joint activity is limited, which seriously affects life and work.

So what issues should you pay attention to before and after hip surgery? We will tell you as a Acetabular Cup System Hip Prosthesis Manufacturer.

Firstly, during the operation, the acetabulum is cleaned and refurbished into a qualified, sufficiently large, accurate direction artificial bonnet bed, which is extremely important for the stability of the sputum cap after installation. The cartilage surface must be completely removed to expose the subchondral bone. However, the sputum can not be repaired too deep, and the upper edge of the acetabulum can not be removed too much, so that the sputum cap is not fixed firmly and is prone to loosening. It is also impossible to penetrate the bottom. If there is penetration, the metal mesh and bone pieces should be added to prevent the bone cement from entering the pelvic cavity.

Secondly, using professional Hip Joint Intrument, the bone cement should be glued to the cap when it is properly polymerized. The best stage is when the bone cement surface is slightly wrinkled without sticking the glove, the center is still not dry, and the cancellous bone can be fully pressed. In the gap, it plays a firm and fixed role, and it is beneficial to achieve the purpose by gently hammering the cap. However, the trampoline must be dry, bloodless, soft tissue-free and clean. The cap must maintain a uniform and appropriate pressure, fixed in the correct orientation until the bone cement solidifies; but it can not be over-stressed so that the bottom of the sputum is continuous without bone cement; if the boring machine has protrusions, it will also affect the full filling of the bone cement. Because bone marrow mud has toxic effects on many elderly people, the current equipment companies have done biological devices, eliminating the toxicity of bone marrow mud!

Hip Replacement Centralizer

Should pay attention after surgery:

1. Be careful when moving, and maintain abduction, external rotation, and mild flexion. The trapezoidal pillow clip is fixed between the lower limbs for 3-6 months during sleep.

2. Prevention of antibiotics 24 hours after surgery, such as wounds, body temperature and no signs of infection, antibiotics can be stopped after 24 hours. Continue to use if available.

3. Effective vacuum suction is extremely important, mainly to prevent infection, and to observe and record the color change and drainage of the drainage fluid. The drainage tube should not be placed for more than 72 hours, and the tube can be removed after 24 hours of drainage.

4. X-ray film is routinely taken within 24 hours after surgery to check the position of the human bone in the acetabulum, and it is also convenient for postoperative follow-up comparison.

5. After the anesthesia is awake, the unfixed joints should be exercised for muscle contraction exercise and lower limb massage to prevent deep vein embolization. At the same time, you can also use the Hip Replacement Centralizer, which can better maintain the patient.

6. Strict regular follow-up to guide exercise and understand the situation. Regular X-ray examination to detect complications early, if there is pain, inflammation, should find the cause and deal with it in time. X-ray examination should pay attention to observe the presence or absence of bone and bone cement, the translucent band between the handle, the shank fracture, the fracture of the bone cement, the relationship between the shank end and the inner side of the medullary cavity, the sinking of the prosthesis, the absorption of the femur, and the cementation of the medial end of the femur. Splitting, bone absorption, etc.

Revision Knee Joint prosthesis

Product Features：

1. Intercondylar column to achieve a stable condylar function

2. Innovative locking mechanism

3. High dislocation height

4. optimized trochlear groove

5. 360°x 3 Revision, effective resolutions to bone defects

Technical parameters：

1. Material: CoCrMo+ Imported PE, Ti6Al4V

2. 145°high flexion

3. Post Stabilized(PS)

4. Mirror Polishing 

5. Specification: Femoral: 1#-9#, Tibial: 1#-7#, Pad: 1/2/4/6#, Stem extension offset: 0/2.5/5mm, length: 40/80/120/160, diameter: 10/12/14/16/18/20. Distal Femoral Augment, Universal Posterior Femoral Augment, Tibial Augment, Tibial Augment(Tapered)  

Payment：T/T Bank Transfer, Credit Card, Western Union, Paypal, etc.

Revision Knee prosthesis manufacturer:Just HuaJian Medical Device(TianJin)Co.,Ltd.

Packaging & Delivery

Packaging	Inner: Three layers of sterile package, both are Tyvek   + PETG heat-sealing package, covered by carton and heat shrinkable filmsExternal: Standard carton
Lead Time	7-21 days (To be negotiated)
Delivery	Door to door (DHL/TNT/UPS/FEDEX/EMS, etc.)

Find here details of selling High Flexion Hybrid Total Knee System, Hip Joint System prosthesis, Hip Joint Replacement Surgery Instrument Set, you will get more information about Joint prosthesis price. All the products with super quality and competitive price.

More Product Please View Hifactory.

Revision Knee Joint prosthesis

Product Features：

1. Intercondylar column to achieve a stable condylar function

2. Innovative locking mechanism

3. High dislocation height

4. optimized trochlear groove

5. 360°x 3 Revision, effective resolutions to bone defects

Technical parameters：

1. Material: CoCrMo+ Imported PE, Ti6Al4V

2. 145°high flexion

3. Post Stabilized(PS)

4. Mirror Polishing 

5. Specification: Femoral: 1#-9#, Tibial: 1#-7#, Pad: 1/2/4/6#, Stem extension offset: 0/2.5/5mm, length: 40/80/120/160, diameter: 10/12/14/16/18/20. Distal Femoral Augment, Universal Posterior Femoral Augment, Tibial Augment, Tibial Augment(Tapered)  

Payment：T/T Bank Transfer, Credit Card, Western Union, Paypal, etc.

Revision Knee prosthesis manufacturer:Just HuaJian Medical Device(TianJin)Co.,Ltd.

Packaging & Delivery

Packaging	Inner: Three layers of sterile package, both are Tyvek   + PETG heat-sealing package, covered by carton and heat shrinkable filmsExternal: Standard carton
Lead Time	7-21 days (To be negotiated)
Delivery	Door to door (DHL/TNT/UPS/FEDEX/EMS, etc.)

Find here details of selling High Flexion Hybrid Total Knee System, Hip Joint System prosthesis, Hip Joint Replacement Surgery Instrument Set, you will get more information about Joint prosthesis price. All the products with super quality and competitive price.

More Product Please View Hifactory.

JUST MEDICAL will attend the RCOST 2019 at Pattaya, Thailand. They will be held in 20-22 October, 2019. Welcome to meet us at B2!

www.just-ortho.comwww.justmedical.en.alibaba.com