Resurfacing with chemically modified hyaluronic acid and lubricin for flexor tendon reconstruction

Chunfeng D Zhao, Takahiro Hashimoto, Ramona L. Kirk, Andrew R. Thoreson, Gregory D. Jay, Steven Lawrence Moran, Kai Nan An, Peter C Amadio

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We assessed surface coating with carbodiimide derivatized hyaluronic acid combined with lubricin (cd-HA-Lubricin) as a way to improve extrasynovial tendon surface quality and, consequently, the functional results in flexor tendon reconstruction, using a canine in vivo model. The second and fifth flexor digitorum profundus tendons from 14 dogs were reconstructed with autologs peroneus longus (PL) tendons 6 weeks after a failed primary repair. One digit was treated with cd-HA-Lubricin, and the other was treated with saline as the control. Six weeks following grafting, the digits and graft tendons were functionally and histologically evaluated. Adhesion score, normalized work of flexion, graft friction in zone II, and adhesion breaking strength at the proximal repair site in zone III were all lower in the cd-HA-Lubricin treated group compared to the control group. The strength at the distal tendon/bone interface was decreased in the cd-HA-Lubricin treated grafts compared to the control grafts. Histology showed inferior healing in the cd-HA-Lubricin group at both proximal and distal repair sites. However, cd-HA-Lubricin treatment did not result in any gap or rupture at either the proximal or distal repair sites. These results demonstrate that cd-HA-Lubricin can eliminate graft adhesions and improve digit function, but that treatment may have an adverse effect on tendon healing.

Original languageEnglish (US)
Pages (from-to)969-975
Number of pages7
JournalJournal of Orthopaedic Research
Volume31
Issue number6
DOIs
StatePublished - Jun 2013

Fingerprint

Carbodiimides
Hyaluronic Acid
Tendons
Transplants
Friction
lubricin
Canidae
Rupture
Histology
Dogs
Bone and Bones
Control Groups
Therapeutics

Keywords

  • flexor tendon
  • graft
  • hyaluronic acid
  • lubricin
  • surface modification

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Resurfacing with chemically modified hyaluronic acid and lubricin for flexor tendon reconstruction. / Zhao, Chunfeng D; Hashimoto, Takahiro; Kirk, Ramona L.; Thoreson, Andrew R.; Jay, Gregory D.; Moran, Steven Lawrence; An, Kai Nan; Amadio, Peter C.

In: Journal of Orthopaedic Research, Vol. 31, No. 6, 06.2013, p. 969-975.

Research output: Contribution to journalArticle

Zhao, Chunfeng D ; Hashimoto, Takahiro ; Kirk, Ramona L. ; Thoreson, Andrew R. ; Jay, Gregory D. ; Moran, Steven Lawrence ; An, Kai Nan ; Amadio, Peter C. / Resurfacing with chemically modified hyaluronic acid and lubricin for flexor tendon reconstruction. In: Journal of Orthopaedic Research. 2013 ; Vol. 31, No. 6. pp. 969-975.
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