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Treatment of Osteochondral Defects in the Rabbit's Knee Joint by Implantation of Allogeneic Mesenchymal Stem Cells in Fibrin Clots
Published on: May 21, 2013
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Osteochondral grafting for failed knee osteochondritis dissecans repairs
Kevin R Stone1, Jonathan R Pelsis2, John V Crues3
1The Stone Clinic, San Francisco, CA, USA; Stone Research Foundation, San Francisco, CA, USA.
The Knee
|December 3, 2014
Summary
Osteochondral grafting shows promise for revising failed osteochondritis dissecans (OCD) lesions, improving patient outcomes and cartilage repair. Further research with more patients is needed to confirm efficacy in complex revision cases.
Area of Science:
- Orthopedic surgery
- Regenerative medicine
- Cartilage repair
Background:
- Revision of failed osteochondritis dissecans (OCD) surgical treatments presents significant challenges.
- There is a need for effective solutions for recurrent or unrepaired OCD lesions.
Purpose of the Study:
- To evaluate the efficacy of osteochondral grafting in patients with failed osteochondritis dissecans (OCD) repairs.
- To assess clinical and imaging outcomes following revision surgery for OCD lesions.
Main Methods:
- Seven patients with failed OCD repairs underwent osteochondral grafting.
- Clinical outcomes were assessed using IKDC, WOMAC, and Tegner scores.
- Graft evaluation included Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) grading.
Main Results:
- Significant improvements were observed in IKDC, WOMAC, and Tegner scores post-surgery.
- Complete cartilage fill and integration were achieved in 71.4% of patients.
- Five patients required a median of one additional surgery during the follow-up period.
Conclusions:
- Osteochondral grafting is a potentially viable option for revising failed OCD lesions.
- The procedure demonstrated promising clinical and radiological improvements.
- Larger studies are required to validate the long-term efficacy in challenging revision scenarios.

