Daily and short-term application of joint movement for the prevention of infrapatellar fat pad atrophy due to immobilization

• Takeda Keisuke

  Graduate School of Medical Science, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan Department of Rehabilitation, Kanazawa University Hospital, Japan

• Takeshima Eisuke

  Rehabilitation Office, Tsurugi Hospital, Japan

• Kojima Satoshi

  Graduate School of Rehabilitation, Kinjo University, Japan

• Watanabe Masanori

  Faculty of Rehabilitation Sciences, Nagoya Gakuin University, Japan

• Matsuzaki Taro

  Graduate School of Medical Science, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

• Hoso Masahiro

  Graduate School of Medical Science, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

Abstract

[Purpose] To mobilize the knee joint during cast fixation and to determine whether infrapatellar fat pad changes can be prevented. [Materials and Methods] We randomly allocated Wistar rats into 3 groups as follows: normal group, raised in normal conditions (n=5); contracture group, immobilized with cast fixation (n=5); and prevention group, treated with joint movement during immobilization (n=5). We immobilized the right hindlimb using cast fixation. Joint movement in the prevention group was accomplished by repeatedly pulling the right hindlimb caudally and then returning the leg to the bent position for 10 minutes every day for 2 weeks. We used a metronome to maintain a constant speed, with one set lasting 2 seconds (1-second traction and 1-second return). [Results] The contracture group had adipose cells of various sizes and fibrosis in the infrapatellar fat pad. These changes were also found in milder forms in the prevention group. We found significant differences in the cross section of adipose cells and in knee extension restriction between the groups. [Conclusion] Promoting joint movement may not only have a therapeutic effect on adipose cells but also a preventative effect.

Journal

• Journal of Physical Therapy Science

  Journal of Physical Therapy Science 31 (11), 873-877, 2019

  The Society of Physical Therapy Science

Keywords

• Prevention
• Infrapatellar fat pad
• Joint movement

Details

• CRID: 1390845702326845312
• NII Article ID: 130007751396
• DOI: 10.1589/jpts.31.873
• ISSN: 21875626
• ISSN: 09155287
• Web Site: https://www.jstage.jst.go.jp/article/jpts/31/11/31_jpts-2019-143/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2020287217
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed