[Ceramic-like xenogeneic bone combining with bone marrow].
OBJECTIVE
This experimental study was aim to investigate the osteogenesis of ceramic-like xenogeneic bone (CXB) combining with bone marrow (BM).


METHODS
The CXB combining BM was implanted into the sacrospinalis muscle of rabbits, and CXB implanted alone was used as control. Eighteen Japanese rabbits with long ear were used. The size of CXB was 5 mm x 5 mm x 5 mm, and the implanted materials were taken out at 2, 4, 8, 12, 16 and 24 weeks after implantation. The histological and histochemical characteristics were investigated.


RESULTS
There existed cartilage and new bone in the groups of CXB combining BM in 2 weeks. Later, be cartilage turned out to the bone and in eight weeks the medullary cavity appeared. However, as the time went on, new bone formation increased and typical osteogenesis could be found. While in the groups of CXB alone, no formation of new bone or cartilage was found.


CONCLUSIONS
The implantation of CXB combined with BM could result in new bone formation in the way of osteoconduation, osteoinduction, and providing, osteoblasts or chondroblasts. It could be an ideal bone substitute, and its clinical use in future seemed very hopeful.
Li
Y
Y
Department of Orthopedic Surgery, First University Hospital, West China University of Medical Sciences, Chengdu, Sichuan, P. R. China 610041.
Yang
Z
Z
D000818:Animals; D016026:Bone Marrow Transplantation / Q000379:methods; D018786:Bone Substitutes; D016025:Bone Transplantation / Q000379:methods*; D002516:Ceramics; D005260:Female; D020007:Implants, Experimental; D008297:Male; D010012:Osteogenesis; D011817:Rabbits; D011897:Random Allocation
D018786:Bone Substitutes