Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Material properties of trabecular bone structures.

K Birnbaum1, R Sindelar, J R Gaertner

  • 1Orthopaedic Department, Technical University Aachen, Pauwelsstr. 30, D-52074 Aachen, Germany. drbirnbaum@web.de

Surgical and Radiologic Anatomy : SRA
|April 20, 2002
PubMed
Summary

This study found that femoral head allograft mechanical stability varies significantly. Preoperative planning should use the lowest compressive strength due to unpredictable variations and no correlation with sample position.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Operative Orthopadie und Traumatologie·2026
Same author

[General principles of biopsy technique and approaches in soft tissue and bone sarcomas].

Operative Orthopadie und Traumatologie·2026
Same author

[Tumour-related extra-articular knee joint resection].

Operative Orthopadie und Traumatologie·2026
Same author

Uncovering the Physiologic Basis of Improved Oxygenation during Prone Positioning in Preterm Infants.

Pediatric pulmonology·2025
Same author

Diagnosis of periprosthetic loosening of total hip and knee arthroplasty using <sup>68</sup>Gallium-Zoledronate PET/CT.

Archives of orthopaedic and trauma surgery·2024
Same author

Novel forms of ventilation in neonates: Neurally adjusted ventilatory assist and proportional assist ventilation.

Seminars in perinatology·2024

Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Mechanical Engineering

Background:

  • Human allograft, specifically femoral head spongiosa, is utilized for bone defect restoration.
  • Understanding the mechanical stability of this allograft is crucial for successful surgical outcomes.

Purpose of the Study:

  • To experimentally investigate the mechanical stability of femoral head allograft.
  • To determine the influence of allograft caliber and extent on its mechanical properties.
  • To correlate trabecular structure orientation with mechanical performance.

Main Methods:

  • Morphometric studies and mechanical compression tests (DIN 50106) were performed on 36 human femoral head spongiosa cylinders.
  • Specimens were compressed at a constant velocity to determine maximum compression strength, yield point, and Young's modulus.

Related Experiment Videos

  • Additional parallelepipedic specimens were analyzed for morphometric properties and mechanical loading in various directions.

    • Main Results:

    • Significant variation in mechanical stability and compressive strength was observed among femoral head allografts.
    • No position dependency of sample strength was found, and optical appearance did not correlate with strength.
    • A strong relationship exists between mechanical strength and the direction of the trabecular structure.

    Conclusions:

    • Preoperative planning for femoral head allograft transplantation should conservatively rely on the lowest determined compressive strength.
    • Utilizing theoretical areas of higher strength is hazardous due to unpredictable variations and lack of correlation with sampling location.
    • Allograft preparation should align with the primary compressive group of the trabecular structure for optimal mechanical integration.