Boundary lubrication between the tendon and the pulley in the finger

Shigeharu Uchiyama, Peter C Amadio, Jun Ichi Ishikawa, Kai Nan An

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The lubrication mechanism between the human flexor digitorum profundus tendon and the A2 pulley was investigated in vitro. The gliding resistance at the interface between the tendon and the pulley increased significantly after the tendon had been treated with a hyaluronidase solution. Alcian-blue staining of the surface of the tendon before and after it was treated with hyaluronidase suggested the presence of hyaluronate complex. Alcian blue- positive and hyaluronidase-sensitive materials, such as hyaluronate or proteoglycan, in the synovial membrane and the matrix of the tendon, may act as a boundary lubricant, facilitating the gliding and reducing the resistance between the tendon and the pulley. CLINICAL RELEVANCE: The use of intrasynovial tendon donor grafts, which appear to possess a boundary lubricant on their surface, may result in improved gliding of the tendon postoperatively, compared with more traditional grafts, such as the palmaris longus tendon, taken from extrasynovial sources.

Original languageEnglish (US)
Pages (from-to)213-218
Number of pages6
JournalJournal of Bone and Joint Surgery - Series A
Volume79
Issue number2
StatePublished - Feb 1997

Fingerprint

Lubrication
Tendons
Fingers
Hyaluronoglucosaminidase
Lubricants
Alcian Blue
Transplants
Synovial Membrane
Proteoglycans
varespladib methyl
Staining and Labeling

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Boundary lubrication between the tendon and the pulley in the finger. / Uchiyama, Shigeharu; Amadio, Peter C; Ishikawa, Jun Ichi; An, Kai Nan.

In: Journal of Bone and Joint Surgery - Series A, Vol. 79, No. 2, 02.1997, p. 213-218.

Research output: Contribution to journalArticle

Uchiyama, Shigeharu ; Amadio, Peter C ; Ishikawa, Jun Ichi ; An, Kai Nan. / Boundary lubrication between the tendon and the pulley in the finger. In: Journal of Bone and Joint Surgery - Series A. 1997 ; Vol. 79, No. 2. pp. 213-218.
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