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Endo-Model Acetabular Cups

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  • Cemented implant for rapid postoperative mobilization1
     
  • Uniform cement coating by means of integral spacers
     
  • Wide range of motion and protection of the iliopsoas by means of medioventral recess4
     
  • Peripheral rim gives increased cement compression9
     
  • High UHMWPE quality means low abrasion3, 7, 8

LINK has decades of experience in the use of UHMWPE, and this was particularly valuable in the design of the cemented acetabular cups. The high quality of the polyethylene demonstrably minimizes abrasion suffered by the components, and thereby reduces the risk of osteolysis. Consequently, the incidence of component loosening is very low. In addition to the Standard UHMWPE, we also supply the system in acetabular cups made of X-LINKed UHMWPE. This highly crosslinked polyethylene makes it possible to achieve even lower abrasion levels.2, 7, 8

In addition to the material properties, the external shape of the acetabular cups help to prevent loosening. Radial notches in the surface create a high degree of cement contact and allow air to escape when the implant is pressed into the cement bed.4 Approximately 0.5 mm of play between prosthesis head and acetabular cup allows for “lubrication” by body fluids.10 Furthermore, spacers on the rear surface of the acetabular cup permit a uniform cement coating. This surface design increases the stability of the cup in the acetabulum, thereby largely eliminating the risk of loosening.5 This design is used successfully in the FC, FAL, and IP Polyethylene Acetabular Cups and also in the Lubinus Acetabular Cup.

Another feature of the cemented polyethylene acetabular cups is the high cup rim, which projects beyond the spherical shape. The Endo-Model Acetabular Cup features an integral medioventral recess, which provides a wide range of motion and protects the femoral nerve and psoas tendon, which can be irritated by the cup rim in the case of larger diameters.4 In addition, it has a partial peripheral rim, unlike the IP Acetabular Cup and the Lubinus Acetabular Cup. This rim increases the cement compression, which in turn makes for better stabilization of the cup in the cement coating.9 In combination with the LINK SPII Lubinus Femoral Stem, this system offers an outstanding, anatomically adapted, cemented hip prosthesis.

The LINK Endo-Model Polyethylene Acetabular Cup is a cemented acetabular cup made of UHMWPE. The direct stability of the cup in the cement coating permits rapid postoperative mobilization of the patient. This, in turn, means shorter recovery times and shorter hospitalization for the patient.1

Acetabular Cups cemented - Impl. Instr. & OP

Name: 6091_Cups_cemented_OP-Impl-Instr_en_2019-09_003.pdf
Size: 1 MB

Acetabular Cups cemented - Flyer

Name: 609_cups_cement_flyer_en_2011-06_002.pdf
Size: 559 KB
  1. L. Claes, P. Kirschner, C. Perka und M. Rudert, AE-Manual der Endoprothetik - Hüfte und Hüftrevision, Heidelberg Dordrecht London New York: Springer, 2012.
  2. S. M. Kurtz, „Advances in the processing, sterilization, and crosslinking of ultra-high molecular weight polyethylene for total joint arthroplasty“, Biomaterials 1999; 20:1659-1687.
  3. E. M. Brach del Prever, „UHMWPE for arthroplasty: past ot future?“, J Orthopaed Traumatol 2009;10:1-8.   
  4. H. W. Buchholz (1969), “Das künstliche Hüftgelenk”, Sonderdruck aus Materia Medica Nordmark, Nov. 1969, 21/11: 613-622   
  5. Garellick, Kärrholm, Rogmark, Rolfson, Herberts, ANNUAL REPORT 2014; The Swedish National Hip Arthroplasty Register.; p. 75   
  6. Internal Document - DOC-07919  
  7. Internal Document - DOC-07954
  8. Internal Document - DOC-08062
  9. W. Buchholz, Das künstliche Hüftgelenk, Modell St. Georg, in Der totale Hüftgelenkersatz, Georg Thieme Verlag Stuttgart, 1985
  10. H.W. Buchholz und E. Strichte (enginearing BASF), 1972

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