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Clinical outcomes of Kyocera Modular Limb Salvage system after resection of bone sarcoma of the distal part of the femur: the Japanese Musculoskeletal Oncology Group study

International Orthopaedics volume 38, pages 825–830 (2014)Cite this article

Abstract

Purpose

The Japanese Musculoskeletal Oncology Group have developed an original prosthesis called the Kyocera Modular Limb Salvage system (KMLS system). This prosthesis has a semi-rotating hinge joint and is particularly designed for people with an Asian body type. The metallic parts of the prosthesis are made entirely of titanium alloy. The purpose of this study is to evaluate the clinical outcomes of treatment using this system following tumour resection of primary bone sarcoma of the distal femur.

Methods

Between 2002 and 2010, 82 patients with primary bone sarcomas of the distal femur were treated. Seventeen patients underwent stem cementation, while 65 patients were treated with cementless prostheses. The mean follow-up period after surgery was 61 months.

Results

Complications were observed in 28 of the 82 patients. Forty-one complications occurred in these 28 patients. Thirteen prostheses (16 %) required revision surgery due to complications, including five cases of stem breakage, three deep infections, three cases of aseptic loosening, one case of displacement of the shaft cap and one case of breakage of the tibial tray. The five-year overall prosthetic survival rate was 80.0 %. Four of the 82 patients underwent subsequent amputation due to local recurrence. The five-year limb salvage rate was 94.5 %. The mean function score according to the scoring system of the Musculoskeletal Tumour Society was 21.8 points (72.5 %).

Conclusions

Although further follow-up is required to determine the performance, this prosthesis is considered to be satisfactory for reconstruction of the distal femur after resection of bone sarcoma.

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Acknowledgments

We thank the following members of the JMOG for their cooperation with collection of clinical data of patients: H. Maehara, H. Kakizaki, T. Minamizaki, K. Numamoto, R. Yokoyama, S. Kakunaga, N. Naka, K. Aono, F. Nakayama, N. Hashimoto, S. Abe, K. Kikuta, K.Oshima, H Futani, H. Obata K. Ihara and T. Goto.

Conflict of interest statement

We declare that we have no conflicts of interest.

Author information

Affiliations

  1. Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan

    Tomoki Nakamura, Akihiko Matsumine, Atsumasa Uchida & Akihiro Sudo

  2. Division of Orthopaedic Surgery, National Cancer Center Hospital, Tokyo, Japan

    Akira Kawai

  3. Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan

    Yoshihiro Nishida

  4. Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine and Dental Science, Okayama, Japan

    Toshiyuki Kunisada

  5. Department of Orthopaedic Surgery, Osaka General Medical Center, Osaka, Japan

    Nobuhito Araki

  6. Department of Orthopaedic Surgery, Aichi Cancer Center, Nagoya, Japan

    Hideshi Sugiura

  7. Department of Orthopaedic Surgery, Nagasaki University Hospital, Nagasaki, Japan

    Masato Tomita

  8. Department of Orthopaedic Surgery, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima, Japan

    Masahiro Yokouchi

  9. Department of Orthopaedic Surgery, Osaka National Hospital, Osaka, Japan

    Takafumi Ueda

Authors
  1. Tomoki Nakamura
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  2. Akihiko Matsumine
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  3. Atsumasa Uchida
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  4. Akira Kawai
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  5. Yoshihiro Nishida
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  6. Toshiyuki Kunisada
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  7. Nobuhito Araki
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  8. Hideshi Sugiura
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  9. Masato Tomita
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  10. Masahiro Yokouchi
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  11. Takafumi Ueda
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  12. Akihiro Sudo
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Corresponding author

Correspondence to Akihiko Matsumine.

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Nakamura, T., Matsumine, A., Uchida, A. et al. Clinical outcomes of Kyocera Modular Limb Salvage system after resection of bone sarcoma of the distal part of the femur: the Japanese Musculoskeletal Oncology Group study. International Orthopaedics (SICOT) 38, 825–830 (2014). https://doi.org/10.1007/s00264-013-2151-7

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  • DOI: https://doi.org/10.1007/s00264-013-2151-7

Keywords

  • Prosthesis
  • Bone sarcoma
  • Distal femur