颅骨环锯术 cephalotrypesis
颅骨环锯 cranial trephine
桡骨环状韧带 anular ligament of radius ; [解剖] Ligamentum anulare radii
纤维软骨环 [解剖] Anulus fibrocartilagineus ; [解剖] fibrocartilaginous ring
镫骨环状韧带 [解剖] annular ligament of stapes
桡骨环韧带 ligamentum annulare radii
软骨环 cartilaginous ring
复合骨环 Composite ring
颅骨环钻术 trephination of skull
结果：复合骨环组在抗屈曲、抗伸展、抗侧弯和抗纵向位移方面与自体髂骨块组间存在显著性差异。
Results:There were significant difference in the strength to resist bending, extending, lateral bending, axial torsion and axial displacement of the fusion unit between the two groups.
结论部分设计的苯并吡喃4酮衍生物具有比四环素更好的趋骨性。
Conclusion Some of the benzopyran-4-one derivatives synthesized have better bone affinities compared with tetracycline.
固定方法有：前环骨折采用钢板固定；后环骨折分离采用骶骨棒，四孔方形钢板，松质骨螺钉固定。
The methods include posterior ring internal fixation by using sacral bars, four-hole square plates or cancellous screws with anterior ring fixed by plates.
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