MIS Unicondylar Knee Arthroplasty with the Extramedullary Technique

  • Giles R. Scuderi


Minimally invasive surgery (MIS) unicondylar knee arthroplasty has gained popularity over the recent years following the introduction of the limited approach by Repicci and Eberle.1 Their limited approach was essentially a freehand technique that used limited instrumentation. Over the years there have been modifications in the surgical instruments in order to perform the procedure accurately and reproducibly through a MIS approach. The Miller Galante Unicondylar prosthesis (Zimmer, Warsaw, IN) introduced intramedullary instrumentation and most recently extramedullary instrumentation.2 The smaller and reliable modified instruments clearly help in bone preparation and component position producing clinical results that are comparable with a conventional procedure.3,4 Improved instrumentation allows the surgeon to operate through a minimally invasive arthrotomy, without everting the patella, and permits more accurate bone resection. It is the refinements in instrumentation that have contributed to successful clinical results.


Femoral Component Distal Femur Proximal Tibia Minimally Invasive Surgery Medial Collateral Ligament 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Repicci JA, Eberle RW. Minimally invasive surgical technique for unicondylar knee replacement. J South Orthop Assoc 1999; 8: 20–27PubMedGoogle Scholar
  2. 2.
    Zimmer monograph. The Zimmer unicompartmental high flex knee: intramedullary, spacer block option and extramedullary minimally invasive surgical techniques, 2004Google Scholar
  3. 3.
    Barnes CL, Scott RD. Unicondylar replacement. In: Scuderi GR, Tria AJ, eds Surgical Techniques in Total Knee Arthroplasty. Springer, New York, 2002, 106–111CrossRefGoogle Scholar
  4. 4.
    Scuderi GR. Instrumentation for unicondylar knee replacement. In: Scuderi GR, Tria AJ, eds MIS of the Hip and the Knee: A Clinical Perspective. Springer, New York, 2004, 87–104CrossRefGoogle Scholar
  5. 5.
    Berger RA, Nedeff DD, Barden RM, et al. Unicompartmental knee arthroplasty: clinical experience at 6- to 10- year follow-up. Clin Orthop 1999;367: 50–60PubMedGoogle Scholar
  6. 6.
    Cartier P, Sanouiller JL, Grelsamer RP. Unicompartmental knee arthroplasty: 10-year minimum follow-up period. J Arthroplasty 1996;11: 782–788CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Insall Scott Kelly Institute for Orthopaedics and Sports Medicine, Attending Orthopedic Surgeon, Assistant Clinical Professor of Orthopedic SurgeryNorth Shore-LIJ Health System, Albert Einstein College of MedicineNew YorkUSA

Personalised recommendations