Aesculap Orthopaedics univation

Transcription

1 Aesculap Orthopaedics univation Knee Endoprosthesis System one system two knees

2 Secure alignment and implantation with OrthoPilot UNIVATION one system two knees The univation System provides implant precision, combined with advanced computer-aided surgical technology. The navigation procedure is integrated in the operation in a userfriendly manner. The exact implant alignment is documented reproducibly during ongoing surgery with the OrthoPilot. 2

3 NAVIGATION hto ensure highest safety and precision when implanting the bone-sparing unicondylar knee prostheses, it is recommended to use the univation System exclusively with high-tech computer support during surgery. The navigation system is an indispensable and invaluable aid for the operating surgeon, particularly considering the reduced field of view. Excellent implant coverage in the load axis is made possible with the aid of intra-operative determination of the mechanical leg axes. As many studies have shown, the resulting large contact area has a beneficial impact on the durability of the prosthesis. Let OrthoPilot guide you safely. For further information on the Aesculap OrthoPilot Navigation System visit 3

4 UNIVATION one system two knees Minimally invasive YES but above all safe: with univation and the OrthoPilot Navigation System. The MIOS Instruments, which are perfectly adapted to one another, in conjunction with the OrthoPilot Software Module UKA, provide for a safe, minimally invasive surgical technique. 4

5 NAVIGATION hadvantages of minimally invasive surgical techniques: h Reduction of tissue trauma h Reduction of postoperative pain h Earlier joint mobilization h Accelerated postoperative recovery h Improved cosmetic result For these reasons, the univation System unites the advantages of unicondylar knee implants with minimally invasive surgical technique and computer aided navigation. h In addition to implant alignment, a well-balanced ligament and joint space situation in extension and flexion is a further essential parameter for good physiological function of the univation concept. Only with well-balanced ligaments can the desired stability and kinematic function be achieved. The OrthoPilot Navigation System takes into account joint space measurements in extension and flexion as well as interactive 3D simulation for planning implant position and resection depths. Ergonomically shaped instruments and precise cutting tools are guided by the navigation system to create excellent bone surfaces for a perfect implant fit. The OrthoPilot supports tibia resections in the anteroposterior and sagittal directions as well as preparation of the femoral bone bed with regard to rotational inclination and varus/valgus-position. The degree of axis correction can be visualized any time via the load axes. 5

6 Minimally invasive and bone sparing UNIVATION one system two knees Only minimal bone resections of the femur and tibia are needed for ensuring secure anchorage. Form and position of the primary fixation elements on the metal components as well as the sturdy yet slim design of the implants make this possible. In vitro tests have shown that the PMMA-nanobond coating increases the time window for cement application by 50% to approx. 9 min. Adhesive tensile strength / MPa Enlarged time window for cement application 40 beschichtet +50% 30 unbeschichtet Processing time / min 6

7 MINIMAL Tibia component h The design of the univation Prosthesis with its innovative cortical anchorage concept combined with the surgical procedure enable implantation via a significantly reduced access. h Very flat, bone-sparing design h Sturdy primary fixation via teeth penetrating into the cortical tibia boundary h Fixation secured against rotation by means of fin running through the center h Good bone coverage through anatomical design and large product range hfemur component h Cylindrical, bone-sparing femur preparation (implant thickness: 4 mm) h Free positioning of implant in medio-lateral plane h Sturdy primary fixation through teeth and fin design An innovative PMMA nanobond-coating enhances safety thanks to an enlarged time window for cement application and improved bonding strength. The danger of hydrolytic debonding at the metal/ PMMA boundary layer is significantly reduced, and crack formation as well as aseptic loosening are reduced thanks to homogenous force distribution. univation Implant PMMA hmeniscus component h Round design for sparing soft tissue h Anti-tilting design with 14 posterior inclined plane h Large contact area between femur and meniscus implants univation Prosthesis PMMAnanobond PMMAnanobond PMMA 14 Source: T. Mumme, R. Marx, R. Müller-Rath, S.Gravius, S. Andereya, D.C. Wirtz,.Silikatisierte/silanisierte Implatatoberflächen zur optimierten hydrolysestabilen Verbundfestigkeit zwischen Knochenzement und Metall, Orthopäde 2008, 37: , Springer Medizin Verlag

8 Restoration of the natural knee function UNIVATION one system two knees Implantation of the unicondylar univation Prosthesis in an early disease stage can prevent the spread of arthrosis to other regions of the joint, and can achieve long-term relief of complaints. 8

9 PERFECTION hthe univation M mobile single radius concept supports restoration of natural knee function by maintaining the large contact area of the articular components during the whole sequence of movement. The beneficial consequence is low polyethylene abrasion, which results in a promising prospect of long-term success. univation M 150 h In addition to mechanical advantages, the highly congruent mobile meniscus component achieves excellent kinematic results, which come very close to the natural condition of the knee. The degrees of freedom of the meniscus are approx. 10 mm in the ML, and approx. 5 mm in the AP direction, depending on implant size. hunivation F h Large contact area: mm 2 allows for reduction of tension peaks to a minimum Lateral 44 Medial Modified according to Pinskerova et al. The anatomical design of the univation F implant is adapted to the bone anatomy. Bone-sparing fixation elements and a minimally invasive surgical technique provide for speedy patient rehabilitation h The patented butterfly design of the medial meniscus component allows for free rotational movement of the femur Lateral view h The natural condylar shape is reproduced by the asymmetric femur implant design. The reduced distal and posterior radii provide for bone-sparing resections. 9

10 Pain-free mobility UNIVATION one system two knees With the univation F and M components, which are finely adapted to one another, Aesculap brings unicondylar knee prostheses to full maturity and development. A comprehensive range of products and instrumentation provides for free choice without compromise 10

11 SYSTEM univation M hthe univation M System comprises a spherical femur component and an anatomically shaped tibia component with cement pockets for optimal fixation. A highly congruent meniscus component in a soft-tissuesparing design ensures controlled translation and completes the floating platform concept of the univation System. The surface finish of the univation components provides for excellent cement bonding through optimized roughness and PMMA-nanobond coating. h h 5 spherical femur components h Mobile meniscus components in 5 sizes and 5 heights (including tibia implant: 7, 8, 9, 10 and 11 mm) univation M and F h 6 anatomically shaped tibia components univation F hthe femur component of the univation F System follows the bone contours with its J-design. The anatomically shaped tibia component with cement pockets and cortical anchorage concept accommodates the meniscus implant via a safe and robust click mechanism. The innovative butterfly design of the PE component for the medial condyle allows for the anatomically required rotational degrees of freedom of the femoral condyle and provides for even distribution of forces. h 5 J-Design femur components h Fixed meniscus components in 6 sizes and 5 heights (including tibia implant: 7, 8, 9, 10 and 11 mm) 11

12 one system two knees Ordering details for univation M Cemented femur components Size F1 F2 F3 F4 F5 RM NO716K NO717K NO718K NO719K NO720K LM NO726K NO727K NO728K NO729K NO730K ISODUR C Cemented tibia components Size T1 T2 T3 T4 T5 T6 RM NO274K NO275K NO276K NO277K NO278K NO279K LM NO280K NO281K NO282K NO283K NO284K NO285K ISODUR F Meniscus components Size F1 F2 F3 F4 F5 7 mm NO711 NO712 NO713 NO714 NO715 8 mm NO721 NO722 NO723 NO724 NO725 9 mm NO731 NO732 NO733 NO734 NO mm NO761 NO762 NO763 NO764 NO mm NO741 NO742 NO743 NO744 NO745 UHMWPE Implant sizes Size F1 F2 F3 F4 F5 A B C D E Size T1 T2 T3 T4 T5 T6 A B C D E Size PE1 PE2 PE3 PE4 PE5 PE6 A B C D E Implant materials: ISODUR C Cobalt-chromium alloy (CoCr29Mo / ISO ) UHMWPE: Ultra-high molecular weight low pressure polyethylene (ISO ) ISODUR F Cobalt-chromium alloy (CoCr29Mo / ISO )

13 hbasic instruments NM501M NM503 hunivation M preparation instruments hunivation F preparation instruments NM505M NM506 hnavigated instruments NM510 13

14 one system two knees Ordering details for univation F Cemented femur components Size F1 F2 F3 F4 F5 RM NL006K NL007K NL008K NL009K NL010K LM NL016K NL017K NL018K NL019K NL020K ISODUR C Cemented tibia components Size T1 T2 T3 T4 T5 T6 RM NL056K NL057K NL058K NL059K NL060K NL061K LM NL066K NL067K NL068K NL069K NL070K NL071K ISODUR F Meniscus components Size T1 T2 T3 T4 T5 T6 7 mm NL470 NL471 NL472 NL473 NL474 NL475 8 mm NL476 NL477 NL478 NL479 NL480 NL481 9 mm NL482 NL483 NL484 NL485 NL486 NL mm NL488 NL489 NL490 NL491 NL492 NL mm NL494 NL495 NL496 NL497 NL498 NL499 UHMWPE Implant sizes Size F1 F2 F3 F4 F5 A B C D E Size T1 T2 T3 T4 T5 T6 A B C D E Size PE1 PE2 PE3 PE4 PE5 A B C D Implant materials: ISODUR C Cobalt-chromium alloy (CoCr29Mo / ISO ) UHMWPE: Ultra-high molecular weight low pressure polyethylene (ISO ) ISODUR F Cobalt-chromium alloy (CoCr29Mo / ISO )

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16 Austrian Sales B. Braun Austria GmbH Aesculap Division Otto Braun-Straße Maria Enzersdorf Austria Phone Fax Swiss Sales B. Braun Medical AG Seesatz 6204 Sempach Switzerland Phone Fax Subject to technical modifications. This brochure is to be used exclusively for the offering, purchase and sale of our products. Reprint, including extracts, is prohibited. We reserve the right to withdraw the catalogs and price lists and to seek redress in the event of misuse. Aesculap AG Am Aesculap-Platz Tuttlingen Germany Phone Fax Brochure No. O /1/2