The Types of Hip Replacements Other than the DePuy ASRs
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The majority of patients all across North America who will undergo any type of surgery have a high level of confidence in the techniques and devices used in the operating room. These patients assume that the techniques and devices used have been thoroughly researched, tested, and found to have a high level of safety. However, the recent hip replacement recall has started to put doubt in the minds of patients everywhere not only with hip replacements, but with medical procedures in general. It is imperative that all patients undergoing hip replacement surgery should research the types of hip implants to help them decide which will best suit their needs. The following are the four most common types:
· Metal-on-plastic
With this type of system, the femoral head is composed of metal while the liner is made up of standard plastic polyethylene. This type of implanted is not recommended for younger, more active patients since standard polyethylene liners are more susceptible to wear and tear. Ultimately, younger and more active patients who are given these types of implants will need revision surgery within seven to ten years of the original procedure. However, metal-on-plastic implants are ideally suited for patients who are elderly and/or those with lower levels of daily physical activity.
· Metal-on-highly crosslinked polyethylene
These types of systems are fundamentally similar to metal-on-plastic system, but differ in the fact that crosslinking the polyethylene creates a more durable and stable implant. The metal-on-crosslinked polyethylene implant has replaced the less durable metal-on-plastic making it an ideal choice for young, active patients.
· Metal-on-metal
Despite being the target of the DePuy hip replacement, not all metal-on-metal replacements come from DePuy pharmaceuticals. There have been no other reports of significant failure rates among these types of implants coming from other manufacturers. Metal-on-metal hip implants are associated with increased stability and longevity. However, those with any type of sensitivity or allergy to metal should avoid these types of implants. An inflammatory reaction and/or nerve damage may result from particles released into the bloodstream due to friction of the metal implant components.
· Metal-on-ceramic
This type of system has an advantage over the other types in that it is more resistant to erosion of its components. With regards to wear and tear, metal-on-ceramic outperforms both metal and plastic types of hip implants. Despite being more susceptible to breaks and fractures, this type has a lower risk of causing an allergic response.
The recall has questioned the safety of hip implants such as DePuy’s . However, patients should educate themselves with regards to the types of implants that are available. These patients should talk with their surgeon to find out which type of implant is best suited to their level of physical activity, age, health, current health of their bones, and other factors. Those affected by the hip replacement recall should consult a licensed attorney regarding their options. For more information about ongoing litigation, visit the DePuy hip implant recall website.
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