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KMID : 0358819890160050725
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Journal of Korean Society of Plastic and Reconstructive Surgeons
1989 Volume.16 No. 5 p.725 ~ p.733
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THE EFFECT OF THE PERIOSTEUM ON THE REGENERATION OF THE SHAVED BONE OF THE RABBIT
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Oh Seok-Hee
Han Ki-Hwan
Kang Jin-Sung
Song Joong-Won
Kwon Kun-Young
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Abstract
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Many orientals have a more prominent malar eminence and mandibular angle than westerners so their faces often look rough and unattracive.
In recent years more people want to have a more attractive and beautiful face due to economic prosperity and westernization. Therefore people receiving bone shavings or osteotomies for cosmetic purposes are increasing. The effects of the periosteum on lay bone grafts were investigated but the effect of the periosteum after bone shaving or osteotomy is little known. The authors investigated the effect of the periosteum on the regeneration of bone in membranous and endochondral bone of rabbits.
Bony defects each measuring about 5.0×5.0×1.5mm were made on the left and right sides of the parietal bones of 15 rabbits and femurs of 15 other rabbits respectively. The periosteum was preserved on the left and removed on the right.
The following results were obtained:
1) The average thickness of the regenerated bones in groups 2 δ4 were thinner than those in groups 1 δ 3 at 4, 8 and 12 weeks postoperatively but the differences of thickness were statistically significant at onl 4weeks postoperatively(P<0.05).
2) The histological findings in groups 2 δ 4 showed lesser regeneration of the shaved bone than those in groups 1 δ 3 at 4, 8 and 12weeks postoperatively.
3) There was no significant increase in the thickness of the regenerated bone after 8 weeks postoperatively in all groups.
4) At 12 weeks postoperatively, the thickness of the regenerated bone in all groups was over 70% of the thickness of the resected bone.
In summary, the authors found that it is important to perform overcorrection and resect the periosteum simultaneously in bone shaving to prevent the unwanted regeneration.
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