Device name: Durom hip cup
Manufacturer: Zimmer Holdings
Approved uses: Part of artificial replacement hip
• Potential failure requiring more surgery
Zimmer Durom Hip Cup
The Durom hip cup is an artificial hip component manufactured by Zimmer Holdings, ltd. The Durom hip cup was first released on the world market in 2006 and has since then been implanted into an estimated 12,000 patients as part of hip replacement surgery.
The Durom hip cup began to come under fire from some physicians and surgeons in 2007, as patients began reporting a seemingly high rate of failure for the device. As of July 2008, Zimmer holdings has suspended sales of the device due to concerns that the device might be defective and susceptible to failure once implanted. There has not been a Durom hip cup recall at present.
The Risks of Hip Surgery Components
Hip replacement surgery usually is considered only after all other physical therapy and medication alternatives have been exhausted. Individuals that are considered qualified candidates for receiving the surgery often have the following ailments/symptoms, according to the Mayo Clinic:
• Constant pain affecting sleep and rest
• Receiving little or no relief after consuming pain medications
• Difficulties standing from a seated position
• Difficulties walking up or down stairs
• Inability to continue everyday activities such as walking because of extensive pain
Hip replacement is not for everyone and physicians believe that individuals suffering from the following should not be considered for a hip replacement surgery:
• Individuals who are in poor health or not capable of tolerating surgery or anesthesia.
• Are at high risk for infection, or currently suffering from an ongoing infection.
• Those with osteoporosis should not receive the surgery.
• Obese or severly overweight individuals.
• Those involved with extreme levels of ongoing heavy manual labor or those severely “physically demanding sports” should avoid the procedure.
While 90 percent of patients who have undergone hip replacement surgery find it a success, there are still potential unintended dangers involved with the surgical procedure. In the past, hip replacement surgeries were predominately for individuals who were 60 years of age or higher, however, technological advancements have allowed individuals much younger than this � whether athletes or individuals suffering from hereditary conditions or accidents � to receive a hip replacement surgery. Although, surgeons and physicians still advise younger individuals to abstain from hip replacement surgeries unless absolutely necessary as very active individuals may wear out an artificial hip anywhere from 15 to 20 years after the procedure.
Components of Hip Surgery
The American Academy of Orthopaedic Surgeons (AAOS) listed several components for hip surgery (also referred to as minimally invasive total hip replacement) including removing the head of the femur (femoral head) and replacing it with a ball-and-socket mechanism.
Additionally, the Mayo Clinic explained that part of the procedure will consist of a plastic and metal socket surgically implanted into the pelvic bone, replacing the impaired original socket. The following is true of hip replacement components:
hip replacement components are commonly made of stainless steel or titanium
plastic and metal prosthetic parts are developed to be durable and wear resistant
prosthetic parts should also be designed to resist corrosion, degradation and wear
There is also another procedure, traditional hip replacement, however that involves making deeper and longer incisions and splitting or detaching muscles from the hips to allow for dislocation. Then, a metal stem is placed into the femur and the stem is implanted with or without bone cement. Today, the later is less common among patients.