[Haversian remodeling in guided bone regeneration].
OBJECTIVE
To study the relationship between Haversian remodeling and bone regeneration in guided bone regeneration (GBR).


METHODS
10 mm long segmental defects were created in the diaphyses of one radius in 24 rabbits. The defect was covered with silicone membrane shaped as a tube. Rabbits were killed at the 3rd day, 1st, 2nd, 3rd, 4th, 6th, 10th, 12th weeks. Undecalcified section was prepared for histologic examination.


RESULTS
Bone resorption was seen in Haversian canal, connection between osteocytes and osteoblasts in Haversian, and connection of osteoblasts in Haversian and in callus. The process of Haversian remodeling was involved in the process of bone regeneration, just like primary bone healing. The process of Haversian remodeling and regeneration was coupled in topography, time and size.


CONCLUSIONS
Bone repair is related to Haversian remodeling.
Zhang
H
H
Department of Orthopedics, General Hospital of Chinese People's Liberation Army, Beijing 100853.
Lu
S
S
Wang
J
J
D000818:Animals; D001861:Bone Regeneration / Q000502:physiology*; D005260:Female; D017102:Fracture Healing / Q000502:physiology; D006253:Haversian System / Q000166:cytology / Q000502:physiology*; D008297:Male; D011817:Rabbits