Aesculap Orthopaedics Excia. Hip Stem

Transcription

1 Aesculap Orthopaedics Excia Hip Stem

2 Excia specifically addresses three aspects of a modern hip stem. The prosthesis design, implantation technique, and implant surface form the foundation for success in primary hip replacement surgery. Excia is implanted using a newly designed rasp that works for both the cementless stem, which is coated with a calcium phosphate layer, and the cemented stem with a distal centralizer. Another distinguishing feature of Excia is the narrow 8/10 mm trunnion, which increases the range of motion by up to 15% greater than the standard 12/14 mm trunnion. The lateral offset of the Excia stem increases with stem size, further enhancing the stability of the joint. Excia was also developed for computer navigation and supports less invasive surgical techniques, thus making it well-equipped for the future of hip replacement surgery. 2

3 Distinguished by design technique surfaces 3

4 Excia design Design The Excia straight stem is designed for implant longevity with or without bone cement. 140 The narrow 8/10 mm trunnion allows a wide range of motion: up to 140 (32 mm heads) compared to 130 with a standard 12/14 mm trunnion. Design options Cementless design Stem design with distal fit and proximal flanges for mechanical stability. Proximal fixation with the Plasmapore µ-cap calcium phosphate surface. Cemented design Wingless stem design preserves bone near the trochanter. Flanges ensure a good proximal fit within the cement mantle. Central stem alignment with the distal centralizer. 4

5 Distinguished by design Two design options for implantation with or without bone cement. 5

6 Excia technique Lateral wing Cementless and cemented Excia stems differ by material, surface, and especially by the lateral wing. Rasps The wing rasp is used in the final step of the cementless implantation only. The stem rasps are so precisely machined that the trial reduction mimics the final implant perfectly. 6

7 Distinguished by technique An instrument set for implantation with or without bone cement. 7

8 Excia surfaces Implant surface The cementless Excia features a proximal rough Plasmapore porous coating. An additional, 20 µm pure and resorbable µ-cap dicalcium phosphate layer is applied electrochemically. Plasmacup The resorbable, porous Plasmapore µ-cap coating; x 800 The Plasmacup acetabular system is also available with the Plasmapore µ-cap coating. 8

9 Distinguished by surfaces Plasmapore µ-cap; x 20 Surface provides the benefits of calcium phosphate, and resorbs within 12 weeks. 9

10 Excia cemented implantation technique Osteotomy 55 The osteotomy angle is 55 degrees. All markings on the instruments and implants are in reference to this plane. 1 2 Opening the medullary canal The medullary canal is opened with a box osteotome, which is inserted posterolaterally and determines the implant antetorsion angle. 10

11 Rasps The medullary canal is prepared with increasing sized rasps until the desired depth and stability are achieved. 4 5 Excia cemented 3 For a cemented implantation the Excia stem and centralizer sizes are selected according to the table below. The distal centralizer size always corresponds to the size of the last rasp used. The required thickness of the cement mantle can be adjusted from 1 to 2 mm, depending on the size of the final implanted stem. Rasp With the appropriate trial heads, the rasp is also used for trial reduction and joint inspection. Cement mantle Rasp Excia Distal thickness size stem size centralizer size 1 mm mm mm

12 4 5 Excia cementless For cementless implantation, a groove for Excia s lateral wing is incised with the wing rasp, which is guided down a slot in the final stem rasp. The Excia stem can be implanted after the trial reduction. The size of the cementless Excia stem corresponds directly to the final stem rasp for a proper press-fit. The stem impactor controls the rotational alignment during implantation. Biomechanical concept The primary stability of the Excia implant is achieved by a precise fit of the distal stem and good rotational stability in the proximal portion. Secondary stability is achieved by a firm bony ingrowth into the proximal Plasmapore µ-cap coating. 12

13 Excia instruments UQ0203 Excia Instruments Tray 1 UQ0203 Excia Instruments Tray 2 JF217R ND004R ND050 ND375 ND401R NF340R NG181 NG182 NG183 NG184 NG185 NG191 NG192 NG193 NG194 NG195 NG301 NG302 NG303 NG304 NG305 NG316 NG317 NG318 NG319 NG320 NG901R NG930R 1/1 SIZE PERF BASKET LID 489 x 257 mm BICONTACT FEMORAL HEAD SAW GUIDE IMPACTION INSTR.F/HIP PROSTHESES/HEADS EXTRACTION INSTRUMENT F/CERAMIC HEADS IMPACTION/EXTRACTION INSTRUMENT INSERTION INSTRUMENT W/BALL-SH.HEXAGON TRIAL PROSTHESIS HEAD L 8/10 28 mm S TRIAL PROSTHESIS HEAD L 8/10 28 mm M TRIAL PROSTHESIS HEAD L 8/10 28 mm L TRIAL PROSTHESIS HEAD L 8/10 28 mm XL TRIAL PROSTHESIS HEAD L 8/10 28 mm XXL TRIAL PROSTHESIS HEAD L 8/10 32 mm S TRIAL PROSTHESIS HEAD L 8/10 32 mm M TRIAL PROSTHESIS HEAD L 8/10 32 mm L TRIAL PROSTHESIS HEAD L 8/10 32 mm XL TRIAL PROSTHESIS HEAD L 8/10 32 mm XXL TRIAL PROSTHESIS HEAD 8/10 28 mm S TRIAL PROSTHESIS HEAD 8/10 28 mm M TRIAL PROSTHESIS HEAD 8/10 28 mm L TRIAL PROSTHESIS HEAD 8/10 28 mm XL TRIAL PROSTHESIS HEAD 8/10 28 mm XXL TRIAL PROSTHESIS HEAD 8/10 32 mm S TRIAL PROSTHESIS HEAD 8/10 32 mm M TRIAL PROSTHESIS HEAD 8/10 32 mm L TRIAL PROSTHESIS HEAD 8/10 32 mm XL TRIAL PROSTHESIS HEAD 8/10 32 mm XXL EXCIA TRAY GENERAL INSTRUMENTS EXCIA INSERTION INSTR.W/BALL-SH.TRIGON JF217R 1/1 SIZE PERF BASKET LID 489X257 mm ND769R EXCIA BOX OSTEOTOME NG903R EXCIA TRAY FORM PROFILERS NG906R EXCIA SAW F/LATERAL WING NG908R EXCIA FORM PROFILER SIZE 8 mm NG909R EXCIA FORM PROFILER SIZE 9 mm NG910R EXCIA FORM PROFILER SIZE 10 mm NG911R EXCIA FORM PROFILER SIZE 11 mm NG912R EXCIA FORM PROFILER SIZE 12 mm NG913R EXCIA FORM PROFILER SIZE 13 mm NG914R EXCIA FORM PROFILER SIZE 14 mm NG915R EXCIA FORM PROFILER SIZE 15 mm NG916R EXCIA FORM PROFILER SIZE 16 mm NG917R EXCIA FORM PROFILER SIZE 17 mm NG918R EXCIA FORM PROFILER SIZE 18 mm NG929R EXCIA FORM PROFILER HANDLE POST.ACCESS JK486 FULL-SIZE LID W/RETENTION PLATE BLUE JN444 FULL-SIZE PERF BOTTOM 187 mm Optional Excia Rasp Handles NG928R EXCIA FORM PROFILER HANDLE LATERAL NG932R EXCIA FORM PROFILER HANDLE LATERAL LEFT NG933R EXCIA FORM PROFILER HANDLE LATERAL RIGHT NG934R EXCIA FORM PROFILER HANDLE ANTERIOR NG935R EXCIA WING PROFILER ANTERIOR SIZES 8-13 NG936R EXCIA WING PROFILER ANTERIOR SIZES

14 Excia implants Excia Cementless ISOTAN F Ti6AI4V ISO Size Excia Std Excia L 8 mm NC408T NC428T 9 mm NC409T NC429T 10 mm NC410T NC430T 11 mm NC411T NC431T 12 mm NC412T NC432T 13 mm NC413T NC433T 14 mm NC414T NC434T 15 mm NC415T NC435T 16 mm NC416T NC436T 17 mm NC417T NC417T 18 mm NC418T NC418T Modular Heads BIOLOX forte Al 2 O 3 ISO mm 32 mm S NJ101 NJ106 M NJ102 NJ107 L NJ103 NJ108 ISODUR F CoCr29Mo ISO mm 28 mm 32 mm S NJ111K NJ131K NJ126K M NJ112K NJ132K NJ127K L NJ113K NJ133K NJ128K XL - NJ134K NJ129K XXL - NJ135K NJ130K 8/10 Excia Cemented 8/10 ISODUR F CoCr29Mo ISO Size 9 mm NJ309K 10 mm NJ310K 11 mm NJ311K 12 mm NJ312K 13 mm NJ313K 14 mm NJ314K 15 mm NJ315K 16 mm NJ316K ISOTAN F 17 mm NJ317K ISODUR F 18 mm NJ318K Distal Centralizer 8 mm NK088 9 mm NK089 BIOLOX forte 10 mm NK mm NK091 PMMA 12 mm NK mm NK093 8/10 14 mm NK mm NK095 ISODUR F 16 mm NK mm NK mm NK098 8/10 Plasmacup Screws 6.5 mm ISOTAN F Ti6AI4V ISO Length 16 mm 20 mm 24 mm 28 mm NA766T NA770T NA774T NA778T Length 32 mm 36 mm 40 mm 44 mm NA782T NA786T NA790T NA794T ISOTAN ISODUR PLASMAPORE are registered trade marks of AESCULAP AG & CO. KG, D Tuttlingen BIOLOX is a registered trade mark of Ceramtec AG, D Plochingen 14

15 Plasmacup SC Bipolar Heads ISOTAN F Ti6AI4V ISO ISODUR C CoCr29Mo ISO Size Plasmapore µ-cap 44 mm NC444T 46 mm NC446T 48 mm NC448T 50 mm NC450T 52 mm NC452T 54 mm NC454T 56 mm NC456T 58 mm NC458T 60 mm NC460T 62 mm NC462T 64 mm NC464T 66 mm NC466T 68 mm NC468T Plasmacup Polyethylene Liners UHMWPE ISO ISOTAN F Size ø 22.2 mm ø 28 mm 41 mm NK021K mm NK022K mm NK023K mm NK024K mm NK025K mm NK026K mm -- NK047K 48 mm -- NK048K 49 mm -- NK049K 50 mm -- NK050K 51 mm -- NK051K 52 mm -- NK052K 53 mm -- NK053K 54 mm -- NK054K 55 mm -- NK055K 56 mm -- NK056K 57 mm -- NK057K 58 mm -- NK058K 59 mm -- NK059K 60 mm -- NK060K ISODUR C Symmetrical Size ø 28 mm ø 32 mm 40 mm 42 mm mm 46 mm NH mm 50 mm NH192 NH mm 54 mm NH193 NH mm 58 mm NH194 NH mm 62 mm NH195 NH mm 66 mm NH196 NH mm Posterior wall ø 28 mm ø 32 mm NH NH NH403 NH404 NH405 NH406 NH413 NH414 NH415 NH416 15

16 All rights reserved. Technical alterations are possible. This leaflet may be used for no other purposes than offering, buying and selling of our products. No part may be copied or reproduced in any form. In the case of misuse we retain the rights to recall our catalogs and price lists and to take legal actions AESCULAP. ALL RIGHTS RESERVED. PRINTED IN THE USA. DOC564 REV. A 2M 12 /07 Aesculap is an equal opportunity employer Aesculap Implant Systems, Inc Corporate Parkway Center Valley, PA Phone: