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Ruptured Achilles tendon shows faster repair amid plasma irradiation treatment

Promising results of helium plasma jet therapy on rats after surgery widen scope of method's medical applications

Date:
May 21, 2024
Source:
Osaka Metropolitan University
Summary:
Researchers have been focusing on non-thermal atmospheric-pressure plasma as a treatment method that can shorten recovery times, such as for tendon repair. Using a helium plasma jet, they demonstrated that irradiation of ruptured Achilles tendons showed accelerated regeneration and increased strength at an earlier stage than if the injury site was not irradiated.
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What is the largest ligament in the human body? It might surprise some people that it is the Achilles tendon. Even though it is also considered the toughest ligament, the Achilles tendon can rupture, with many such injuries involving sports enthusiasts in their 30s or 40s. Surgery might be required, and a prolonged period of rest, immobilization, and treatment can be difficult to endure.

Seeking to shorten the recovery time, a research team led by Osaka Metropolitan University Graduate School of Medicine's Katsumasa Nakazawa, a graduate student in the Department of Orthopedic Surgery, Associate Professor Hiromitsu Toyoda, and Professor Hiroaki Nakamura, and Graduate School of Engineering Professor Jun-Seok Oh has focused on non-thermal atmospheric-pressure plasma as a treatment method.

This study is the first to show that such plasma irradiation can accelerate tendon repair. The team ruptured then sutured the Achilles tendon of lab rats. For one group of rats, the sutured area was irradiated with a helium plasma jet. The plasma-irradiated group exhibited faster tendon regeneration and increased strength at two, four, and six weeks after surgery compared to the untreated group.

"We have previously discovered that irradiation of non-thermal atmospheric-pressure plasma has the effect of promoting bone regeneration. In this study, we discovered that the technology also promotes tendon regeneration and healing, showing that it has applications for a wide range of fields," Professor Toyoda declared. "Combined with current tendon treatments, it is expected to contribute to more reliable tendon regeneration and shorter treatment time."


Story Source:

Materials provided by Osaka Metropolitan University. Note: Content may be edited for style and length.


Journal Reference:

  1. Katusmasa Nakazawa, Hiromitsu Toyoda, Tomoya Manaka, Kumi Orita, Yoshihiro Hirakawa, Kosuke Saito, Ryosuke Iio, Akiyoshi Shimatani, Yoshitaka Ban, Hana Yao, Ryosuke Otsuki, Yamato Torii, Jun-Seok Oh, Tatsuru Shirafuji, Hiroaki Nakamura. In vivo study on the repair of rat Achilles tendon injury treated with non-thermal atmospheric-pressure helium microplasma jet. PLOS ONE, 2024; 19 (5): e0301216 DOI: 10.1371/journal.pone.0301216

Cite This Page:

Osaka Metropolitan University. "Ruptured Achilles tendon shows faster repair amid plasma irradiation treatment." ScienceDaily. ScienceDaily, 21 May 2024. <www.sciencedaily.com/releases/2024/05/240521124710.htm>.
Osaka Metropolitan University. (2024, May 21). Ruptured Achilles tendon shows faster repair amid plasma irradiation treatment. ScienceDaily. Retrieved June 15, 2024 from www.sciencedaily.com/releases/2024/05/240521124710.htm
Osaka Metropolitan University. "Ruptured Achilles tendon shows faster repair amid plasma irradiation treatment." ScienceDaily. www.sciencedaily.com/releases/2024/05/240521124710.htm (accessed June 15, 2024).

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