Totalendoprothetischer Kniegelenksersatz
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  • 作者:Prof. Dr. Andre F. Steinert ; Boris M. Holzapfel ; Lukas Sefrin…
  • 关键词:Bone malalignment ; Prosthesis fitting ; Precision medicine ; Computer ; aided design ; Osteoarthritis
  • 刊名:Der Orthop?de
  • 出版年:2016
  • 出版时间:April 2016
  • 年:2016
  • 卷:45
  • 期:4
  • 页码:331-340
  • 全文大小:2,030 KB
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  • 作者单位:Prof. Dr. Andre F. Steinert (1)
    Boris M. Holzapfel (1)
    Lukas Sefrin (1)
    Jörg Arnholdt (1)
    Maik Hoberg (1)
    Maximilian 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 concept and surgical technique of patient-specific total knee arthroplasty. Patient-specific implants and instruments are designed and fabricated based on computed tomography (CT) data of the leg. The disposable patient-specific drill guides and cutting-jigs are manufactured taking into consideration the anatomical and biomechanical axes of the knee joint and mediating the efficient pre-navigation of the osseous saw-cuts, without the need for additional navigation or balancing aids. The surgical plan is made on the basis of the CT data. The implantation technique comprises the following steps: distal femoral resection, tibial resection, balancing and femur preparation, tibia preparation, optional patellar resurfacing, trialling of the test components, and implantation of the final components. By using this patient-specific implant system, which includes not only personalized, single-use instruments, but also individualized implants, the surgeon is able to provide endoprosthetic treatment that broadly restores the patient’s own knee anatomy and knee kinematics. Preliminary studies have proven the concept and data on this technology are promising so far; however, like a new implant, they are usually limited. In particular, comparative long-term clinical data are still to come.

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