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Related Experiment Video

Updated: Jan 27, 2026

Treatment of Osteochondral Defects in the Rabbit's Knee Joint by Implantation of Allogeneic Mesenchymal Stem Cells in Fibrin Clots
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A Radiographic Sizing Algorithm for Tibial Plateau Osteochondral Allografts.

David P Trofa1, William C Graham1, Kirk A McCullough2

  • 1Sports Medicine Center, OrthoCarolina Sports Medicine Center, Charlotte, NC, USA.

Cartilage
|March 14, 2019
PubMed
Summary

Developing an accurate sizing algorithm for tibial plateau allografts is crucial for successful osteochondral transplantation. This study proposes a method using recipient radiographs to improve graft selection and prevent oversized implants, enhancing treatment outcomes.

Keywords:
osteochondral allograft transplantationsizing algorithmtibial plateau

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Radiology

Background:

  • Tibial plateau osteochondral allograft transplantation effectively treats chondral damage.
  • Accurate graft sizing is critical for successful transplantation outcomes.
  • Current sizing methods may lead to suboptimal graft selection.

Purpose of the Study:

  • To develop a precise and reproducible algorithm for sizing tibial plateau allografts.
  • To establish a reliable method for determining allograft size based on recipient radiographs.
  • To minimize the risk of oversized graft implantation in tibial plateau reconstruction.

Main Methods:

  • A cadaveric study involving 10 fresh frozen knee specimens.
  • Comparison of radiographic measurements with digital photographs of disarticulated specimens.
  • Calculation of a correlation factor between radiographic and morphologic measurements.

Main Results:

  • No significant difference in coronal plane measurements between radiographs and specimens.
  • Sagittal plane measurements showed specimens were 90% (medial) and 80% (lateral) of radiographic measurements.
  • Radiographs reliably measure tibial plateau width but overestimate length.

Conclusions:

  • This study presents the first sizing algorithm for tibial plateau osteochondral allografts.
  • Anteroposterior radiographs accurately measure tibial plateau width.
  • A correction factor is needed for sagittal plane measurements to avoid oversized grafts and potential failure.