Relationship of donor variables and graft dimension on biomechanical performance of femoral ring allograft

Robert Hart, Alan H. Daniels, Timothy Bahney, Jeremy Tesar, Jonathan Rafe Sales, Brian Bay

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Structural femoral ring allograft is commonly used in interbody spinal arthrodesis. Fractures of implanted femoral ring allograft have been reported. Data to guide donor screening and tissue processing by allograft tissue banks for factors that affect graft strength are incomplete. Fresh frozen human femora from 34 cadaveric donors were sectioned into ten 20-mm thick specimens. Bone mineral density (BMD), donor age, and graft dimensions were recorded for each specimen. Three hundred twenty-seven specimens were tested in quasi-static axial compression. Linear regression models compared load to failure with BMD, sex-specific donor age, minimum/maximum cortical wall thickness, and minimum/maximum outer ring diameter. Correlations between minimum and maximum cortical wall thickness and load to failure were significant (r=0.73, p

Original languageEnglish (US)
Pages (from-to)1840-1845
Number of pages6
JournalJournal of Orthopaedic Research
Volume29
Issue number12
DOIs
StatePublished - Dec 2011

Fingerprint

Thigh
Allografts
Transplants
Bone Density
Linear Models
Tissue Banks
Donor Selection
Femoral Fractures
Arthrodesis
Thromboplastin
Femur

Keywords

  • allograft bone
  • biomechanics
  • femoral rings
  • interbody fusion
  • spine fusion

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Relationship of donor variables and graft dimension on biomechanical performance of femoral ring allograft. / Hart, Robert; Daniels, Alan H.; Bahney, Timothy; Tesar, Jeremy; Sales, Jonathan Rafe; Bay, Brian.

In: Journal of Orthopaedic Research, Vol. 29, No. 12, 12.2011, p. 1840-1845.

Research output: Contribution to journalArticle

Hart, Robert ; Daniels, Alan H. ; Bahney, Timothy ; Tesar, Jeremy ; Sales, Jonathan Rafe ; Bay, Brian. / Relationship of donor variables and graft dimension on biomechanical performance of femoral ring allograft. In: Journal of Orthopaedic Research. 2011 ; Vol. 29, No. 12. pp. 1840-1845.
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