Ultrasound has the potential to detect degeneration of articular cartilage clinically, even if the information is obtained from an indirect measurement of intrinsic physical characteristics

doi:10.1186/ar2727

Arthritis Research & Therapy

Volume 11
Issue 3

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Kuroki H
Nakagawa Y
Mori K
Kobayashi M
Yasura K
Okamoto Y
Suzuki T
Nishitani K
Nakamura T

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Nakagawa Y
Mori K
Kobayashi M
Yasura K
Okamoto Y
Suzuki T
Nishitani K
Nakamura T
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Letter

Ultrasound has the potential to detect degeneration of articular cartilage clinically, even if the information is obtained from an indirect measurement of intrinsic physical characteristics

Hiroshi Kuroki¹ , Yasuaki Nakagawa² , Koji Mori³ , Masahiko Kobayashi⁴ , Ko Yasura⁴ , Yukihiro Okamoto⁴ , Takashi Suzuki⁴ , Kohei Nishitani⁴ and Takashi Nakamura⁴

¹Division of Motor Function Analysis, Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan

²Department of Orthopaedic Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan

³Department of Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, 755-8611, Japan

⁴Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan

author email corresponding author email

Arthritis Research & Therapy 2009, 11:408doi:10.1186/ar2727


Published:	24 June 2009

See related research by Nakagawa et al., http://arthritis-research.com/content/10/4/R78, and related editorial by Zhang and Huang, http://arthritis-research.com/content/10/6/125

First paragraph (this article has no abstract)

We appreciate the concern shown by Zheng and Huang [1] regarding our earlier article [2]. We presented simple data showing that the ultrasound response of articular cartilage may be related to its International Cartilage Repair Society grading, and concluded that ultrasound evaluation using the signal intensity – dependent on the ultrasound reflection coefficient at the cartilage surface – may be helpful to differentiate International Cartilage Repair Society grades, especially grade 0 from grade 1 cartilage [2].