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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 52 - 52
1 Mar 2012
Kokkinakis M Kafchitsas K Rajeev A Mortier J Engelhardt M
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The autologous osteochondral grafting represents a treatment option for osteochondral lesions of the weight bearing articular surfaces of femoral condyles and talus. The aim of our study was to evaluate the MRI findings and to determine the correlation between the radiological and the functional outcome in the early follow up.

We performed a retrospective study and followed up 33 patients 1 to 4 years after osteochondral auto-grafting. The grafts were harvested from the anterolateral region on the lateral femoral condyle of the ipsilateral knee using an insider rinsing diamond bone-cutting instrument (DBCS). The grafts were implanted using press fit technique and mosaic plasty.

Sixteen (48%) women and 17 men were included in our follow up with an average age of 38.4 years (age range-16 to 58 yrs). The Lysholm and Foot and Ankle Osteoarthritis Scores were used for the assessment of the functional outcome. MRI scans were performed by all patients.

While the MRI results illustrated graft incorporation, the cartilage contour interruption, irregularity of the subchondral lamina, inhomogeneity and subchondral oedema are typical findings between host and graft tissues. The clinical outcome demonstrated pain relief and improved function. There was no statistically significant correlation between radiological and functional outcome (p>0.05).

The MRI is a well-recognised non-invasive diagnostic tool to assess the integration of osteochondral grafts and to evaluate the articular surface but it has a reduced clinical significance on the early post operative stages. The long-term prognostic value of the unsatisfying MRI results is unknown.