making informed choices high performance hip replacement

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Maryann Stafford
7 years ago
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1 high performance hip replacement

2 Is Hip Replacement Surgery Right For You? If you have gradually stopped doing the things you enjoy or are adapting your life to cope with reduced mobility, hip replacement surgery may be appropriate for you. Fortunately, today s advanced techniques and technologies have revolutionized hip replacements. That means more patients can consider treatments at an earlier stage than they could in the past, potentially allowing them to return to their more active lifestyles. Anatomy of a Healthy Hip The hip joint forms where the top of the thigh bone (femur) meets the socket of the pelvic bone. The top of the femur is ball-shaped and fits snugly in the socket. The bones of the hip joint are covered by cartilage that protects the bones and allows easy motion. Pelvis Acetabulum Femoral Head Femoral Neck Femur

Fortunately, today s advanced techniques and technologies have revolutionized hip replacements.

3 If your surgeon determines that your hip joint is not healthy, he or she will help you make the decision about whether a total hip replacement is appropriate for you. Surgeon Considerations: Bone Density Bone Defects Bone Shape Biomechanics Diseased Hip A hip joint may require replacement as a result of osteoarthritis, rheumatoid arthritis, avascular necrosis (AVN), or fracture.

Surgeon Considerations: Bone Density Bone Defects Bone Shape Biomechanics Diseased Hip A hip

4 traditional HIP REPLACEMENT In a traditional total hip replacement procedure, your surgeon will replace the diseased or unhealthy hip with an implant consisting of a stem, ball, liner and socket. During the surgery, the worn head of the thigh bone (femur) is replaced with a metal ball, or head, mounted on a metal stem inserted into the bone. A matching cup, or socket, is placed into the pelvis. The bearing, or point where the ball and socket rub together, plays a critical role in the durability of an artificial hip. It affects how well the implant will wear over time, how long it will last, and how stable it will be in your body. For many years, a tough medical-grade plastic, or polyethylene, was used in the bearings of artificial joints. Also important is the bearing s size. While traditional hip replacement utilized relatively small bearing diameters, it is now recognized that a larger ball offers greater range of motion and stability because it is more like the natural hip. Your surgeon will choose the optimum bearing surface for you. Bearing Socket Liner (polyethylene) Ball (small diameter) Stem

A matching cup, or socket, is placed into the pelvis. The bearing, or point where the ball and socket rub together, plays a critical role in the durability of an artificial hip.

5 HIGH PERFORMANCE OPTIONS Hip Resurfacing An option for certain patients with strong bone density and structure, hip resurfacing may preserve bone by covering the worn hip joint surfaces with metal caps. The metal caps, placed over reshaped bone, create a metal-on-metal joint. As a result, the joint may experience less friction and less wear than some traditional hip replacement options such as metal-on-plastic. Hip resurfacing is a major surgical procedure that may require a larger incision than traditional hip replacement. For some surgeons, this procedure may also take more time to complete compared to a traditional hip replacement. Hip resurfacing can be more technically demanding than a traditional hip replacement, and your surgeon should have experience with this procedure. Fractures at the top of the femur (femoral neck) are a primary concern after a resurfacing procedure. There are no current data showing that hip resurfacing offers greater functional results compared to other modern hip replacement options. The hip resurfacing procedure has been studied in clinical trials over the past few years in the United States. While the short-term results are encouraging, additional long-term studies regarding safety and effectiveness will be important. The DePuy ASR XL Option No implant or bearing material is best for all patients or medical conditions. Your surgeon will choose the optimum bearing surface for you. However, for many patients, the DePuy ASR XL Metal-on-Metal Hip System offers significant benefits over a traditional hip replacement. The DePuy ASR XL System uses a large diameter, high performance metal bearing developed using today s advanced technology. The DePuy ASR XL System allows your surgeon to use a larger replacement ball, more like your natural thigh bone.

As a result, the joint may experience less friction and less wear than some traditional hip replacement options such as metal-on-plastic.

6 Hip resurfacing * depuy ASR XL System One-piece hip socket liner preserves bone Large diameter cap matches natural anatomy Metal bearing surface reduces wear Top of thigh bone (femur) is shaped to receive metal implant One-piece hip socket liner preserves bone Large diameter metal ball closely matches natural anatomy and reduces wear Clinically proven technology fixes metal ball to thigh bone (femur) Benefits 1 Hip Resurfacing The ASR XL System Preserves Bone in the Hip Socket Provides Excellent Range of Motion Reduces Wear Compared to Traditional Hip Replacement Provides Ball Diameters that Closely Match Natural Anatomy Allows Surgeon to Adjust Leg Length and Offset Involves a Relatively Small Surgical Incision NO Based on Strong Clinical History NO NO Your surgeon will select the right bearing based on durability, level of performance, wear resistance, experience and your personal needs. *Actual product shown not currently available in the United States, however, other total resurfacing implants are available.

(femur) Benefits 1 Hip Resurfacing The ASR XL System Preserves Bone in the Hip Socket Provides Excellent Range of Motion Reduces Wear Compared to Traditional Hip Replacement Provides Ball Diameters

7 making informed choices Medical improvements and advances in the components and materials used in hip replacement implants continue to offer new ways to help patients. Of course, no surgical procedure or implant material is best for all patients and medical conditions. It is important for you to work closely with your surgeon to determine the best choices for your lifestyle and medical considerations. When selecting the appropriate surgical procedure and replacement implants for you, your surgeon will consider a variety of factors, including stability, range of motion and wear resistance as well as your lifestyle, gender, age and weight. The success of any implant depends on many factors. Only a surgeon can determine the best implant for each patient and explain the risks and benefits. 1 Mont, M. et al. Hip Resurfacing Arthroplasty. Journal of the American Academy of Orthopaedic Surgeons 14, August 2006: DePuy Orthopaedics, Inc. 700 Orthopaedic Drive Warsaw, IN USA Tel: +1 (800) Fax:+1 (574) DePuy International Ltd St Anthony s Road Leeds LS11 8DT England Tel: +44 (113) Fax:+44 (113) Printed in USA DePuy Orthopaedics, Inc. All rights reserved

It is important for you to work closely with your surgeon to determine the best choices for your lifestyle and medical considerations.

In this brochure you will: Keep in mind:

In this brochure you will: Keep in mind: Hip Implant Options Bearing Basics Today s hip implant patients are fortunate. Doctors can now choose from advanced implant materials. One choice doctors make when selecting the implant for you is called