The effect of length on the structural properties of an Achilles tendon graft as used in posterior cruciate ligament reconstruction.

Published

Journal Article

BACKGROUND: The clinical outcomes of posterior cruciate ligament reconstruction are varied. No previous studies have investigated the effect of graft length on the structural properties of the graft. HYPOTHESIS: Graft length significantly affects the structural properties of posterior cruciate ligament grafts. STUDY DESIGN: Controlled laboratory study. METHODS: Eight Achilles tendon grafts were tested under tensile loads up to 400 N at 3 different lengths: long (75 mm), medium (48 mm), and short (34 mm). These 3 lengths represent midtunnel fixation, inlay fixation, and fixation near the ligament insertions. RESULTS: Shortening the graft from both long to medium and from medium to short increased the stiffness by approximately 25%. Long and medium grafts displaced significantly more than medium and short grafts, respectively. CONCLUSION: The effective length of a graft, which is determined by where it is fixed, should be considered an important variable in posterior cruciate ligament reconstruction.

Full Text

Duke Authors

Cited Authors

  • DeFrate, LE; van der Ven, A; Gill, TJ; Li, G

Published Date

  • June 2004

Published In

Volume / Issue

  • 32 / 4

Start / End Page

  • 993 - 997

PubMed ID

  • 15150048

Pubmed Central ID

  • 15150048

International Standard Serial Number (ISSN)

  • 0363-5465

Digital Object Identifier (DOI)

  • 10.1177/0363546503261739

Language

  • eng

Conference Location

  • United States