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Computer-Assisted Minimally Invasive Curettage and Reinforcement of Femoral Head Osteonecrosis with a Novel, Expandable Blade Tool

  • Tsuyoshi Koyama
  • Nobuhiko Sugano
  • Hidenobu Miki
  • Takashi Nishii
  • Yoshinobu Sato
  • Hideki Yoshikawa
  • Shinichi Tamura
  • Takahiro Ochi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3217)

Abstract

For minimally invasive curettage of femoral head osteonecrosis, we have developed a novel expandable blade tool which can be introduced into the femoral head through the subtrochanteric route under navigation guidance. In this study, we evaluated the effectiveness and feasibility of this tool in comparison with the Cebotome, a conventional bone cutter. A target area in the femoral head of a Sawbone femur model was curetted with each tool through the subtrochanteric route under navigation guidance. The volume of the curetted necrotic lesion was significantly larger and the procedure time was significantly shorter with this tool than with the Cebotome. The compressive strength of the femoral head curetted with this tool and filled with hydroxyapatite blocks was comparable to that of the intact one. This expandable blade tool can be a suggestion for more effective and feasible curettage of necrotic lesions in femoral head osteonecrosis than conventional bone cutters.

Keywords

Compressive Strength Femoral Head Necrotic Lesion Surgical Tool Core Decompression 
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.

References

  1. 1.
    Mont, M.A., et al.: Core decompression versus nonoperative management for osteonecrosis of the hip. Clin. Orthop. 324, 169–178 (1996)CrossRefGoogle Scholar
  2. 2.
    Mont, M.A., et al.: The trapdoor procedure using autogenous cortical and cancellous bone grafts for osteonecrosis of the femoral head. J. Bone Joint Surg. Br. 80(1), 56–62 (1998)CrossRefGoogle Scholar
  3. 3.
    Steinberg, M.E., et al.: Core decompression with bone grafting for osteonecrosis of the femoral head. Clin. Orthop. 386, 71–78 (2001)CrossRefMathSciNetGoogle Scholar
  4. 4.
    Stulberg, B.N., et al.: Osteonecrosis of the femoral head, A prospective randomized treatment protocol. Clin. Orthop. 268, 140–151 (1991)Google Scholar
  5. 5.
    Sugano, N., et al.: Prognostication of nontraumatic avascular necrosis of the femoral head, Significance of location and size of the necrotic lesion. Clin. Orthop. 303, 155–164 (1994)Google Scholar
  6. 6.
    Sugano, N., Atsumi, T., Ohzono, K., Kubo, T., Hotokebuchi, T., Takaoka, K.: The 2001 revised criteria for diagnosis, classification, and staging of idiopathic osteonecrosis of the femoral head. J. Orthop. Sci. 7(5), 601–605 (2002)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Tsuyoshi Koyama
    • 1
  • Nobuhiko Sugano
    • 2
  • Hidenobu Miki
    • 2
  • Takashi Nishii
    • 2
  • Yoshinobu Sato
    • 3
  • Hideki Yoshikawa
    • 2
  • Shinichi Tamura
    • 3
  • Takahiro Ochi
    • 1
  1. 1.Division of Robotic TherapyOsaka University Graduate School of MedicineOsakaJapan
  2. 2.Department of Orthopaedic SurgeryOsaka University Graduate School of MedicineOsakaJapan
  3. 3.Division of Interdisciplinary Image AnalysisOsaka University Graduate School of MedicineOsakaJapan

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