Alloclassic®Zweymüller®Stem - 12 Pages

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Alloclassic®Zweymüller®Stem

Catalog excerpts

Alloclassic® Zweymüller® Stem

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Disclaimer This document is intended exclusively for experts in the field, i. e. physicians in particular, and is expressly not for the information of laypersons. The information on the products and/or procedures contained in this document is of a general nature and does not represent medical advice or recommendations. Since this information does not constitute any diagnostic or therapeutic statement with regard to any individual medical case, individual examination and advising of the respective patient are absolutely necessary and are not replaced by this document in whole or in part. The...

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Since 1979, over 420,000 hips have been replaced using the original Alloclassic Zweymüller Stem, making this prosthesis the most implanted uncemented stem in Europe. There are over 200 clinical publications proving the success of the various design features attributed to this implant, including its biocompatible material resulting in excellent primary and secondary fixation. The easy surgical technique and the broad product range provide the best conditions for enabling the surgeon to provide optimum care for his patients. The Alloclassic Zweymüller SL Stem is the only original product of...

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Alloclassic Zweymüller SL Stem Product Portfolio SL Stem, Step Less SLL Stem, Step Less Long 14 sizes ranging from 01 to 12 9 sizes ranging from 3 to 11 SL O Stem, Step Less Offset Sizes 14 sizes ranging from 01 to 12

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SL HAC Stem, Step Less HA Coated1 SLA Stem, Step Less Asia2 12 sizes ranging from 01 to 12 6 sizes ranging from 01 to 4 available only in certain countries available only in Japan

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1979 The Concept Was Born • The Original Alloclassic Zweymuller SL Stem was manufactured by Sulzer Medizinaltechnikand first implanted by Prof. Zweymuller in Vienna on 5 October 1979. • The stem was available in 4 sizes and was made from the Ti6Al4V forged alloy Protasul-64WF. • The philosophy of this implant was that of an uncemented design together with a distal fixation concept. • This stem was characterized by its tapered design and rectangular cross section. • The design included proximal macrostructures and distal longitudinal grooves, proximal thinning as well as a collar. • The...

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1986 The Design Was Finalized • All sizes formed part of a continuous taper and were harmonized using better increments and the Step Less concept was developed. Thus, the name SL Stem was introduced. • The hyperbolic curvature was patented based on the stem’s excellent anatomical fit. • The easily accessible extraction hole was developed and patented. • The range of sizes for this prosthesis was again further increased to include 14 standard sizes from sizes 01 to 12. • The SLA (Step Less Asia) was developed for the Asian market. This was soon followed with the introduction of the SLL...

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A world-class implant requires evidence depicting its success. Since the inception of the concept of the Alloclassic Zweymuller SL Stem, over 200 publications have been dedicated towards proving the historical success of this implant. These publications instill further confidence as to the future expected for this proven concept of this highly successful implant. Below are some examples of the clinical papers published on this stem.

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Osseointegration of the Alloclassic Zweymüller SL Stem in Elderly Patients Results of 80-Year-Old Patients, and Older, with the Alloclassic Zweymüller SL Stem 1 The use of cement is particularly worrisome in older patients, and can lead to an increased rate of death, fat embolism, confusion, deep vein thrombosis, pulmonary embolism, disseminated intravascular coagulation, bone damage, difficulty with revision, higher cost, longer hospital stays, and a higher rate of infection. The following case study evaluates the clinical results and bone adaptation changes in 56 consecutive patients...

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Clinical Success Despite Difficult Preoperative and Postoperative Conditions Case Study 3 Results from a follow-up over a period of 12.8 years: Alloclassic Zweymüller SL Stem which was implanted in a varus position on account of a previously deployed implant. Preoperative Preoperative X ray of a right hip with posttraumatic femoral head, aseptic osteonecrosis in a 57 years old, healthy and active (Devane grade 4) female patient, 6 years after internal fixation of a Garden I femoral neck fracture. Postoperative, 1 Year Total hip arthroplasty in February 1989 with use of an Alloclassic...

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Postoperative, 10 Years Anterior-posterior X ray at 10 years, with signs of stable osseointegration of both components and positive bone remodeling with disappearance of the previous bone changes. The corresponding Harris Hip Score was 100 points. Postoperative, 12.8 Years (most recent X ray, 22 October 2001) AP X ray at 12.8 years, unchanged. Average linear PE wear estimated at 0.6 mm (about 0.05 mm per year). The lady was 70 years old, with very slight occasional pain in the right buttock (HHS, 96 points) and still an active life (Devane grade 3).

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© 2005 by Zimmer GmbH Printed in Switzerland Subject to change without notice Contact your Zimmer representative or visit us at www.zimmer.com

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