BIOLOX®DUO - Ceramic Bipolar System
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joint reconstruction with increased

BIOLOX ®DUO – Ceramic Bipolar System Less is more BIOLOX®DUO combines the proven advan2 BIOLOX®DUO is an innovative alternative to tages of a modern bipolar prosthesis with total hip replacement. The self-centering bi- the BIOLOX® ceramic wear couple. Com- polar system leaves the acetabulum intact, pared with conventional hip replacements thus allowing better proprioception. the BIOLOX®DUO-System offers many It provides a very large range of motion. impor­tant advantages. The ceramic-ceramic wear couple drastically reduces polyethylene and metal wear debris. Consequently metal sensitivity...

Alternative to Total Hip Replacement Advantages of the BIOLOX®DUO-System • Conservation of the acetabulum • Better proprioception • Lower risk of dislocation • Earlier mobilization possible • Less surgical trauma • Shorter operating time • Easier surgical technique • Lower risk of complications • Faster rehabilitation possible • Cost savings since no acetabular shell is required • High-value option with clinically-proven BIOLOX® ceramic wear couple technology • Wider range of revision options BIOLOX®DUO permits a high degree of flexion with a lower risk of dislocation.

Sparing Bone, Protecting Cartilage The BIOLOX®DUO-System is the treatment of choice for hip joint disease in which the acetabulum is intact and worth conserving. It can be used, for example, in the treatment of osteoarthritis, femoral head necrosis, rheumatoid arthritis or femoral neck fracture. Better proprioception Minimization of surgical trauma to the joint capsule and to the acetabulum helps to retain proprioception. This facilitates a rapid return to a physiological gait, along with the clear advantage of load bearing and muscle rehabilitation. Wider range of revision options...

Biomechanically Natural and Safe Stable with lower risk of dislocation returns to its neutral position. The extremely low friction of the articulating sur- In normal walking and loading the system face ensures that only a small amount of has been designed to remain centered. The the motion takes place in the acetabulum, majority of the joint motion takes place in which as a result is well-protected against the inner bearing, between the ball head erosion. The large range of motion pro­ and the bipolar shell. Only at the extreme vided by the implant reduces the risk of ranges of motion, as...

Lasting Wear Resistance Wear resistant and biocompatible BIOLOX® ceramic is extremely resistant The outer surface of the bipolar shell arti­ against abrasion and wear. For this reason culates against the natural acetabulum; the the material has proven itself for use in inner surface articulates against the joint replacement. Its advantages are in the BIOLOX® ball head. All of these ceramic bone and soft-tissue sparing design of the surfaces are highly polished and possess BIOLOX DUO-System. Both in the outer extremely low surface roughness (Ra < bearing against aceta­ ular cartilage and in...

Optimal Lubrication Excellent wettability Hydrogen bonds form between the ceramic surface and the synovial fluid. The excellent wettability of BIOLOX® ceramic permits the formation of an effective lubrication film, which continuously maintains a low coef­ ficient of friction. This property optimizes the sliding ability of the inner and outer bearings of the BIOLOX®DUO-System. Coupled with the self-centering design of the system, this property ensures that only a small part of the joint motion is transferred to the acetabulum. The wetting angle for metal and polyethylene (middle) is about...

Wear Couples for the Long Term Lower coefficient of friction 8 Articulating BIOLOX® ceramic surfaces have BIOLOX® ceramic is roughly three times an extremely low (and constant) coefficient harder than metal. If foreign particles, of friction of 0.035. This is very close to the such as cement or bone debris, become value for a healthy, natural hip joint of 0.02. trapped in the ceramic wear couple, they Thus, if lubrication is taken into account, are ground into very small pieces without articulating BIOLOX surfaces exhibit behav­ damaging the ceramic and are washed ® ior similar to that of a...

Well-Tolerated by the Human Body Excellent biocompatibility Clinical results Studies have shown that the surfaces of After more than 30 years of clinical use BIOLOX ceramic implants become cov- in total hip replacements a large number ered with a layer of protein molecules of long term clinical reports are available for shortly after implantation. The very strong BIOLOX® ceramic. With regards to the so- binding force of the ceramic molecule lution of the osteolysis problem, BIOLOX® prevents the release of ions. This property ceramic has emerged as a proven alterna- forms the basis for the...

BIOLOX ®DUO Product Range BIOLOX®DUO consists of three components BIOLOX®DUO can be combined with all which are assembled intraoperatively. hip stems, which are approved for use with the 28 mm BIOLOX®forte ball heads or • a 28 mm BIOLOX®forte ball head or with the 28 mm BIOLOX®delta ball heads. a 28 mm BIOLOX®delta ball head If necessary, the polyethylene fixation ring • a BIOLOX forte bipolar shell with can be removed easily and the system can outer diameter from 42 mm to 56 mm (in 1 mm steps) • a polyethylene fixation ring

More Information On the attached CD you will find further Also, you can import the 3-D animations information about the BIOLOX DUO- into your own presentations. You will System, including animations, advice on ”duodata/duovideo“ directory. Their file mechanics, facts about abrasion and wear of hip prostheses. In addition, there are clinical reports, literature references and a detailed description of the material properties of BIOLOX® ceramic . Is the BIOLOX®DUO CD ROM missing from this brochure? If so, please contact us. We’ll be glad to send you another one.