Ceramic Replacement

Ceramic Replacement

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Thermax AF1 Replacement Dome $39.99 Thermax AF1 Replacement Dome

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Medelco 12-Cup Glass Stovetop Whistling Kettle $7.99 The Stovetop Whistling Tea Kettle can withstand high variations in temperature and is dishwasher safe%2E This whistling tea kettle has a 12 cup capacity with a heat resistant phenolic handle%2E Can be used on gas or electric stove tops%2E %28Includes whistling lid and metal trivet%29%2E…

Crock-Pot SCCPVL610-S 6-Quart Programmable Cook & Carry Oval Slow Cooker, Stainless Steel $59.99 Crock-Pot 6 Quart Countdown Cook & Carry Slow Cooker Stainless Steel…

Smith’s PP1 Pocket Pal Multifunction Sharpener $7.03 Smith’s pocket pal combination ceramic, carbide and diamond knife sharpener. Coarse carbide, fine ceramic, and fine diamond taper for sharpening straight and serrated blades. Compact and lightweight unit comes with lanyard hole….

Camco 40043 TastePURE RV Water Filter with Flexible Hose Protector $17.87 Looking for a large capacity in-line water filter? Look no further than TastePURE! The TastePURE RV Water Filter contains the KDF filtering system to fight bacteria, and reduce bad taste, odors, chlorine and sediment in drinking water. Convenient in-line exterior mount filter has a wider body to improve water flow; Comes with a no-kink hose protector. Durable welded case is UV resistant. Larger fi…

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Andis RC-2 Ionic 1875W Ceramic Hair Dryer with Folding Handle and Retractable Cord $19.99 Andis 1875 Ionic Ceramic Folding Dryer with Retractable Cord…1875 Watts of drying power; Ionic/Ceramic technology dries hair faster by breaking up water molecules; 3 heat/air speeds for ultimate styling; Retractable cord and folding handle for convenient storage; Cool shot button locks in style; INCLUDES: Concentrator….

Hot Tools Professional Curling Iron with Multi-Heat Control Professional 85 Watt Spring Curling Irons with Pulse Auto Heat Control Big Bumper 1-1/2 , 24K Gold Plated Barrel…

Arctic Silver 5 Polysynthetic Silver Thermal Compound Paste 3.5g $3.40 Arctic Silver 5 premium thermal compound with 99.9% pure micronized silver is specifically designed to maximize the thermal conductivity between today’s high-powered processors and high-performance cooling assemblies. Arctic Silver 5 uses three unique shapes and sizes of near-pure silver particles to maximize particle-to-particle contact area and thermal transfer. It can reduce CPU core temperat…

Knee Replacement in Young Patients

Knee replacement in young patients

Dr.A.K.Venkatachalam

Consultant orthopedic surgeon

Chennai

Unheard of until recently, this is now becoming a hot subject of deliberation amongst patients and orthopedic surgeons. Normally the typical patient for a knee replacement would be a patient in their golden years of life. Surprisingly now increasingly large number of young patients, plagued by end stage arthritis from various causes, are now seeking an end to their constant pain and stiffness by demanding a total knee replacement. The number of patients less than 65 years old seeking a knee replacement is increasing. According to a national sample survey in the US done in 2005, about 9660 patients less than 45 years underwent a primary total knee replacement. This figure is expected to touch 108000 by 2030. To quote some figures, 27 percent of TKR recipients are between 18 and 64 years. This is setting a new trend in orthopedic surgery.

At present Knee replacement is advised for elderly patients. Whenever orthopedic surgeons come across younger patients less than 65 years, they generally advise exhaustion of conservative measures before proceeding to a total knee replacement. As the above figures show, more and more younger patients are likely to demand a total knee replacement in years to come.

Younger patients live a more active life style and joint replacement is likely to result in early failure if standard approaches are adopted.

The purpose of this article is to inform readers particularly the younger ones about some of the advances in Joint replacement for the young patient with knee arthritis.

Conditions

The conditions leading to end stage arthritis in the young are rheumatoid arthritis, post traumatic arthritis, ankylosing spondylitis, post infective arthritis hemophilic arthritis and osteoarthritis in the genetically predisposed young patient.

Survivorship of standard knee replacements

Conventional knee prostheses are made of an alloy of Cobalt, Chromium, Molybdenum & Nickel and Titanium. The plastic component is high density poly ethylene. The survivorship is such that 1 % of every 100 knees fail every year, so that after 15 years, 85 % of knees implanted on day one are expected to survive or remain intact without loosening. This excludes loosening due to faulty insertion and infection. So in the elderly patient, a reasonable outcome is expected with the prosthesis expected to outlive the person.

In the young however the situation is different. Historically, total knee replacements are known to have poor outcomes in the young due to their higher activity levels compared to older patients. Hence surgeons are reluctant to place them in younger patients as they are bound to outlive their implants.

Better materials

With the advent of newer materials and designs of knee prostheses, these perceptions are about to change. The biggest advance is the availability of newer materials like Ceramic for knee replacements. Pure ceramic or ceramic coatings on metal are the latest in technology.

Titanium carbide has been used for dental implants but its use as a bearing surface in hip & knee prostheses is not widespread. Knees made of ceramic are in restricted use. Implantation of pure ceramic knees requires specialized instrumentation.

Oxinium or Oxidised Zirconium is the wonder material that has been used successfully for knee & hip implants. It is a metal with a coating of ceramic. In the manufacturing process, prosthetic components made of Zirconium are heated and infused with oxygen to create a ceramic surface on metal. This ceramic surface is more durable than normal metals. This material received FDA approval in 1996. After rigorous testing, this material received approval for use in knees.

Advantages of Zirconium knees

The significant advantage of a Zirconium knee implant is that it is considerably harder. On testing it lasts 85 times longer in tests that simulate the stresses inside the actual knee.
Additional advantages are scratch resistance. When it is wet, ceramic can glide smoothly along plastic, making for smoother motion than with metal-on-plastic. As a result, the Oxinium total knee replacement will not generate the quantity of plastic wear debris that cobalt chrome will, and the implants should last considerably longer.
Zirconium is one of the six most biocompatible elements know to man. So, your immune system will more easily tolerate your new implant.
Lastly, patients who are allergic to nickel, the metal most often used in the current implants, cannot currently receive total knee replacements. The ceramic implant, however, can be implanted safely in patients with nickel allergies, since it uses a zirconium alloy with no nickel. Implants made of Oxinium have been implanted in larger number of patients in the UK Australia and the US with great success.

Who would benefit most from an Oxinium total knee replacement?
Three types of patient have been identified as the “best” candidates for an Oxinium total knee replacement.

“Younger” patients: Because Oxinium knee implants offer significantly less wear compared to cobalt chrome implants, they are expected to last considerably longer. In the past, orthopedic surgeons have advised patients less than 65 years of age to wait to have knee replacement surgery because the life span of the cobalt chrome knee implants is only 10-15 years. Now, surgeons have a viable option for a younger patient who previously would not be a candidate for a total knee replacement because the Oxinium knee implants should last much longer. Therefore, a patient under the age of 65 who has advanced arthritis of the knee no longer has to suffer for years until he reaches an appropriate age for total knee replacement surgery.

“Active” patients: Patients, who desire to return to an active lifestyle, including sports, dancing, gardening, or other strenuous activities, may also benefit from an Oxinium knee replacement. As a result of their high activity level, this patient population will put more “wear and tear” on their knee replacement, which can cause the implants to wear more quickly. An Oxinium knee is better able to tolerate this high activity level and last longer that the traditional cobalt chrome knee.

Metal allergy patients: Because Oxinium is one of the most biocompatible materials known to man; It is the only choice for patients who exhibit metal allergies. Patients who have needed total knee replacement surgery, but could not tolerate the cobalt chrome implants due to their nickel content, can now have the surgery they need to return to an active lifestyle without the fear of an allergic reaction.
Three designs are available, the Genesis knee, Journey knee and the Deuce knee, according to the manufacturer, Smith & Nephew.
In India, the Genesis knee in Oxinium is to be introduced soon in South India.

About the Author

Dr.A.K.Venkatachalam, MS, DNB, FRCS (UK), MCh. (Liverpool)has worked with leading Knee surgeons in the UK, Belgium and Dubai earlier. He is affiliated to the Chettinad health city hospital near Chennai. Recovery from surgery is no longer a painful ordeal as expert anesthetists provide effective anesthesia and pain relief to inpatients. The intensive care unit is monitored by alert physicians round the clock and multi specialty referrals are readily available. There are well qualified physiotherapists to help you recover quickly from surgery.

Our track record

We have had the pleasure of treating patients from the USA, UK, Africa and Europe. Knee replacements are performed using the most modern techniques and prostheses.

http://www.kneeindia.com

http://www.kneereplacement.co.in

Laguna Tools Ceramic Replacement Kit

Grill Daddy GD12952c Grill Daddy Pro Grill Brush $15.95 Grill Daddy GD12952S Grill Daddy Pro Grill Brush…

Medelco 12-Cup Glass Stovetop Whistling Kettle $7.99 The Stovetop Whistling Tea Kettle can withstand high variations in temperature and is dishwasher safe%2E This whistling tea kettle has a 12 cup capacity with a heat resistant phenolic handle%2E Can be used on gas or electric stove tops%2E %28Includes whistling lid and metal trivet%29%2E…

Crock-Pot SCCPVL610-S 6-Quart Programmable Cook & Carry Oval Slow Cooker, Stainless Steel $59.99 Crock-Pot 6 Quart Countdown Cook & Carry Slow Cooker Stainless Steel…

Smith’s PP1 Pocket Pal Multifunction Sharpener $7.03 Smith’s pocket pal combination ceramic, carbide and diamond knife sharpener. Coarse carbide, fine ceramic, and fine diamond taper for sharpening straight and serrated blades. Compact and lightweight unit comes with lanyard hole….

Camco 40043 TastePURE RV Water Filter with Flexible Hose Protector $17.87 Looking for a large capacity in-line water filter? Look no further than TastePURE! The TastePURE RV Water Filter contains the KDF filtering system to fight bacteria, and reduce bad taste, odors, chlorine and sediment in drinking water. Convenient in-line exterior mount filter has a wider body to improve water flow; Comes with a no-kink hose protector. Durable welded case is UV resistant. Larger fi…

Dremel 290-01 0.2 Amp 7,200 Stroke Per Minute Engraver includes Letter and Number Template $17.46 Engrave, decorate, or personalize a wide variety of materials–from metal to plastic to wood and leather–with the Dremel 290-01 7,200 Stroke Per Minute Engraver. This handy tool includes a letter and number template for infinite artistic possibilities. It also features a soft-grip body, replaceable carbide engraving point, and variable stroke control..caption {font-family: Verdana, Helvetica neue…

Revlon Tourmaline Ionic Hair Dryer $29.99 Lighten up, the Revlon Tourmaline Ionic Hair Dryer is here to give your hair a holiday. This deluxe dryer is lightweight, lean, and durable. It features ionic tourmaline technology that will help protect your hair without drying it out. Two heat and two speed settings let you control the temperature and airflow to fit your style specifications. The diffuser attachment will keep your curls under co…

Andis RC-2 Ionic 1875W Ceramic Hair Dryer with Folding Handle and Retractable Cord $19.99 Andis 1875 Ionic Ceramic Folding Dryer with Retractable Cord…1875 Watts of drying power; Ionic/Ceramic technology dries hair faster by breaking up water molecules; 3 heat/air speeds for ultimate styling; Retractable cord and folding handle for convenient storage; Cool shot button locks in style; INCLUDES: Concentrator….

Hot Tools Professional Curling Iron with Multi-Heat Control Professional 85 Watt Spring Curling Irons with Pulse Auto Heat Control Big Bumper 1-1/2 , 24K Gold Plated Barrel…

Arctic Silver 5 Polysynthetic Silver Thermal Compound Paste 3.5g $3.40 Arctic Silver 5 premium thermal compound with 99.9% pure micronized silver is specifically designed to maximize the thermal conductivity between today’s high-powered processors and high-performance cooling assemblies. Arctic Silver 5 uses three unique shapes and sizes of near-pure silver particles to maximize particle-to-particle contact area and thermal transfer. It can reduce CPU core temperat…