Individualendoprothetik am Kniegelenk

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• 作者：Prof. Dr. A.F. Steinert ; L. Sefrin ; M. Hoberg ; J. Arnholdt ; M. Rudert
• 关键词：Knee arthroplasty ; Knee replacement ; Gonarthrosis ; Patient ; specific ; Pre ; navigation
• 刊名：Der Orthop?de
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：44
• 期：4
• 页码：290-302
• 全文大小：1,016 KB
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• 作者单位：Prof. Dr. A.F. Steinert (1)
  L. Sefrin (1)
  M. Hoberg (1)
  J. Arnholdt (1)
  M. Rudert (1)
  
  1. Orthopädische Klinik, König-Ludwig-Haus, Lehrstuhl für Orthopädie, Julius-Maximilians-Universität, Brettreichstr. 11, 97074, Würzburg, Deutschland
  
• 刊物主题：Orthopedics; Chiropractic Medicine; Conservative Orthopedics; Surgical Orthopedics; Sports Medicine; Traumatic Surgery;
• 出版者：Springer Berlin Heidelberg
• ISSN：1433-0431

文摘

This article describes the rationale and the surgical technique of patient-specific uni-, bi-, or three-compartmental knee arthroplasty using the second generation (G2) of ConforMIS™ technology. The patient-individual implants and instruments are designed and fabricated based on data from a preoperative computed tomography of the lower limb. The disposable patient-specific drill guides and cutting-jigs are manufactured under consideration of the anatomical and biomechanical axes of the knee joint and mediate efficient pre-navigation of the saw-cuts on the femoral and tibial bone without the need for an additional navigation or balancing device. The surgical technique for all types of knee resurfacement comprises the steps of cartilage removal, knee balancing in extension and flexion, sparing bony cuts, final preparation of femur and tibia, trialling, cementing of components and final choice of tibial insert. The use of individualized three-dimensional image-derived resurfacing implants, as well as personalized single-use instrumentation, facilitates the surgeon to perform an almost anatomical knee resurfacement that has the potential to restore almost normal knee kinematics. The limited data on this novel technology is promising, however long-term clinical data is needed for final evaluation of this technology.