Cullberg G, Larsson B
Acta Obstet Gynecol Scand. 1979;58(1):87-90. doi: 10.3109/00016347909154921.
Perforations and extraction problems in some 30 700 women wearing a copper intrauterine device (Cu-IUD), either a Cu-7 or Cu-T have been studied. Perforations were very rare. Judging from the literature and the present investigation, in cases of perforation the Cu-7-IUD has a tendency to penetrate the uterine wall and the Cu-T-IUD the cervical wall. Retracted and detached strings were observed somewhat more often in women wearing Cu-7-IUD's. The number of such cases was, however, not large enough to warrant a statistical comparison. The cause of retention, investigative procedures and recommendations in the removal of lodged Cu-IUD's are discussed.
对约30700名佩戴铜宫内节育器（Cu-IUD，即Cu-7或Cu-T）的女性的穿孔及取出问题进行了研究。穿孔非常罕见。从文献和当前研究来看，在穿孔病例中，Cu-7宫内节育器有穿透子宫壁的倾向，而Cu-T宫内节育器有穿透宫颈壁的倾向。在佩戴Cu-7宫内节育器的女性中，发现回缩和脱落的尾丝的情况稍多一些。然而，此类病例数量不足以进行统计学比较。文中讨论了宫内节育器嵌顿的原因、检查程序以及取出嵌顿Cu-IUD的建议。
