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Related Concept Videos

Tissue Transplantation01:24

Tissue Transplantation

Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...

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Related Experiment Video

Updated: Jul 15, 2026

In Vitro Impact Model to Generate Sublethal Chondrocyte Injury in Bovine Cartilage Explants
06:42

In Vitro Impact Model to Generate Sublethal Chondrocyte Injury in Bovine Cartilage Explants

Published on: June 27, 2025

Impaction affects cell viability in osteochondral tissues during transplantation.

Tamara K Pylawka1, Markus Wimmer, Brian J Cole

  • 1Department of Anatomy and Cell Biology, Rush Medical College, Rush Presbyterian St Luke's Medical Center, Chicago, Il 60612, USA.

The Journal of Knee Surgery
|May 10, 2007
PubMed
Summary

Impact loading during osteochondral allograft preparation significantly reduces cartilage cell viability. Careful consideration of forces during transplantation is crucial for preserving cell health in cartilage grafts.

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Real-time Visualization and Analysis of Chondrocyte Injury Due to Mechanical Loading in Fully Intact Murine Cartilage Explants
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Real-time Visualization and Analysis of Chondrocyte Injury Due to Mechanical Loading in Fully Intact Murine Cartilage Explants
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Real-time Visualization and Analysis of Chondrocyte Injury Due to Mechanical Loading in Fully Intact Murine Cartilage Explants

Published on: January 7, 2019

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Cell Biology

Background:

  • Articular cartilage defects are commonly treated with osteochondral allografts.
  • Cell viability is critical for the success of cartilage transplantation.

Purpose of the Study:

  • To assess the impact of preparation forces on the viability of cells within osteochondral allografts.
  • To determine the correlation between applied forces and cell death during graft preparation.

Main Methods:

  • Osteochondral plugs were harvested and reimplanted using a tamping device with a load cell.
  • Cell viability was assessed at 0, 48 hours, and 7 days post-impact.
  • Impact forces, total impulse, and loading rates were measured during plug insertion.

Main Results:

  • Peak insertion forces reached 307 +/- 84 N, with loading rates up to 133 +/- 25 kN/s.
  • Cell death was significantly higher in impacted plugs compared to controls across all time points.
  • Cell viability was notably reduced in the upper zone (60%) and also affected in middle and deep zones (20%).

Conclusions:

  • The forces applied during osteochondral allograft preparation negatively impact chondrocyte viability.
  • Minimizing impact forces during cartilage graft manipulation is essential for maintaining cell survival.
  • These findings highlight the need to optimize surgical techniques to improve allograft outcomes.