Zoledronate가 토끼장골에서 채취한 상악동 골이식부위 치유에 미치는 영향

송준호; 이수운; 박상준

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Zoledronate가 토끼장골에서 채취한 상악동 골이식부위 치유에 미치는 영향
EFFECT OF ZOLEDRONATE TO BONE HEALING PROCESS AFTER ILIAC BONE GRAFT INTO MAXILLARY SINUS IN RABBIT

대한구강악안면외과학회지 2009년 35권 3호 p.158 ~ 163

송준호, 이수운, 박상준,

소속 상세정보

송준호 ( Song Jun-Ho ) - 인제대학교 의과대학 부산백병원 구강악안면외과
이수운 ( Lee Su-Woon ) - 인제대학교 의과대학 부산백병원 치과학교실 구강악안면외과
박상준 ( Park Sang-Jun ) - 인제대학교 의과대학 부산백병원 치과학교실 구강악안면외과

KMID : 0355620090350030158

Abstract

Objective: Recently, we are interested in bisphosphonate related osteonecrosis of the jaw (BRONJ). Most of patients with osteonecrosis have taken medicine bisphosphonate for a long time. But the mechanism of osteonecrosis in BRONJ was not clarified yet. The aim of this study is to evaluate the difference of bone healing effect after bone graft from ilium to maxillary sinus in rabbits between zoledronate-treated and zoledronate-not treated groups.

Method: The subjects was divided into two groups. The experimental group was 9 rabbits, treated with intraperitoneal administration of zoledronate(0.06㎎/㎏) once per week for 3 weeks. In control group, same procedure was applied but administerd saline instead of zoledronate. After 4 weeks, surgical operation under local anesthesia (ketamine 3.0cc, xylazine 1.0cc) was done. At postoperative 1, 2, 4, 8 weeks later, each rabbits were sacrificed and removed the bone grafted area. Gross, radiologic and histopathologic exminations of bone grafted area were performed.

Result: There were no conspicuous differences of radiological findings between experimental and control groups in any experimental weeks. In experimental group, new bone formation appeared earlier than control group at 1 week after operation, and maturation of bony tissue were more conspicuous at 2 and 4 weeks after operation, compared with control group. In 8 weeks after operation, similar microscopic findings were noted in both groups.

Conclusion: In the bisphosphonate-treated rabbits, new bone formation in the bone grafted area appeared earlier and bony maturation was more concpicuous, even though there were no significant differences of gross and radiological findings. These findings suggest that bisphosphonate might be promotive effect in the healing process in early stage after administration.