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Journal of Hand Surgery (British and European Volume)
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Articles

Development of Polyvinyl Alcohol-Hydrogel (PVA-H) Shields with a High Water Content for Tendon Injury Repair

M. KOBAYASHI
J. TOGUCHIDA
M. OKA

From the Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan

Correspondence: Dr Masanori Kobayashi, Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, Japan.

The main problem in tendon repair is adhesion formation between the tendon and surrounding tissue. To prevent this, we have developed adhesion preventive shields using polyvinyl alcohol hydrogel (PVA-H) with 90% water content. This implant experiment used the deep flexor tendon of the 3rd toe of the domestic fowl. Injured tendons shielded with PVA-H healed within about 3 weeks without adhesion to the surrounding tissues. Neither breakage of the PVA-H shield itself nor infection or degeneration in the surrounding tissue was observed. These results show that tendon is capable of intrinsic repair, and was able to regenerate using synovial nutrition through the PVA-H. The high water content of PVA-H may be clinically useful and applicable to adhesion preventive shields for tendon repair.

Journal of Hand Surgery (British and European Volume), Vol. 26, No. 5, 436-440 (2001)
DOI: 10.1054/jhsb.2001.0581
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 Br Med BullHome page
A. Khanna, M. Friel, N. Gougoulias, U. G. Longo, and N. Maffulli
Prevention of adhesions in surgery of the flexor tendons of the hand: what is the evidence?
Br. Med. Bull., June 1, 2009; 90(1): 85 - 109.
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