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The Application of a New Composite in Large Bone Defects using Fibrillar Collagen and HA/TCP

Published online by Cambridge University Press:  26 February 2011

Masaaki Uratsuji ,
T. W. Bauer  and
S. I. Reger
Masaaki Uratsuji
Affiliation:
Department of Musculoskeletal ResearchThe Cleveland Clinic Foundation, 9500 Euclid Ave., Cleveland, OH 44106
T. W. Bauer
Affiliation:
Department of PathologyThe Cleveland Clinic Foundation, 9500 Euclid Ave., Cleveland, OH 44106
S. I. Reger
Affiliation:
Department of Musculoskeletal ResearchThe Cleveland Clinic Foundation, 9500 Euclid Ave., Cleveland, OH 44106
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Extract

The handling property and short term biological response to a new composite of fibrillar collagen (FC) and porous calcium phosphate (HA/TCP) were studied. A 4 mm by 20 mm defect was created in the femora of rabbits. The rabbits were divided into four treatment groups and sacrificed from each group at 4, 8 and 12 weeks. In each group, the defect was treated as follows: in Group I with autogenous bone marrow; in Group II with FC and HA/TCP; and in Group III with FC and HA/TCP with bone marrow in volume ratio of 3:1. In the fourth group, the defect was unfilled. The femora were excised and studied by microradiography or histology or both. The FC could improve the handling property of the HA/TCP granules. Although the composite of FC and HA/TCP was not osteoinductive, the defects in Groups II and III showed good healing at 12 weeks without signs of inflammation. The results showed the composite of FC and HA/TCP to be an effective filler for large bone defects especially when mixed with autogenous bone marrow.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 110: Symposium M – Biomedical Materials and Devices , 1987 , 199
Copyright
Copyright © Materials Research Society 1988

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