摘要
自体髂骨游离移植术后的吸收情况报道尚不多,本实验表明40只家兔的髂骨分别移至颅骨面(骨性受区)和颅部皮下(非骨性受区)。经1个月后移植骨减轻20.0%(骨性受区)和21.0%(非骨性受区),3个月后分别减轻67.6%和69.1%,6个月为76.0%和73.6%。
Even though efforts were made by closely adhering to the estabilished rules of bonegrafting, late absorption of bone grafts occures frequently. Sometime the effect of operationis jeopardized. The cause of bone absorption is complicated. it is necessary to carry outfurther research. In this study 80 autogeneous grafts were taken from ilium of 40 rabbits. Ahalf of the grafts were transplanted on to cranium,the rests were implanted into subcutaneoustissue. One month later, bone grafts were absorbed 20.0% (on surface of cranium bone) and21.0%(in subcutaneous sites). Three months after operation absorptions increased to 67.6%and 69.1% respectively. Six months later. absorption reached to 76.0% and 73.6%. There isno statistical difference between two sites where the grafts are transplanted(P>0.05). Abso-rption of bone grafts was also found in 3 dogs. Its ilium autografts wereabsorbed 52.8%(over cranium) and 45.2% (in subcutaneous tissue) 3 months after operation, the formerincreased to 55.3% and the latter 50.1% 6 months later. Microscopic examination revealedabsorption and melting of bone grafts, necrosis and cystis formation were also found insome grafts. We believe that these data may help us to recognize the absorption further after freebone autografting.
