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SCAFFOLD GUIDED BONE TISSUE ENGINEERING IN A RABBIT ANIMAL MODEL



Abstract

Aim: The aim of the current study is to investigate if viscosupplemetation therapy will increase the effect of microfracture technique by acting the quality and quantity of the new cartilage after microfracture.

Material and Method: Full thickness chondral defects were created to intercondylar notch as a nonweightbearing area by using a handle drill bit. Microfracture holes between bridges were performed with a 1mm K wire.

The present study was performed on 30 mature white rabbits (male range, 2800–3500 gr). The right knees were accepted as study and left knees as control group. Group 1 was received intraarticular 0.1ml sodium hyaluronate treatment, rabbits in group 2 were received 0.1 ml Serum Physiologique once a week for three weeks. Biopsy was taken from both knees at the 3rd and 6th week. Histopathological evaluation was performed by a pathologist who is blind to study according to modified Mankin score.

Results: Although the difference of the scores between study and control group was not statistically different at the third week, it was seen different at the sixth week histologically.

Conclusion: Hyaluronic acid may be benefecial in the treatment of chondral lesion addition to arthroscopic microfracture technique.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Email: office@efort.org