发育性髋关节发育不良儿童股骨头覆盖率三维CT测量及远期评价  

Using CT to measure femoral head coverage of children with dysplasia of the hip after operation and long term follow-up

作　　者：姜梨梨[1] 陈珽[1] 范清[1] 张楷乐[1] 张菁[1] 

机构地区：[1]上海交通大学医学院附属新华医院儿童骨科,上海市200092

出　　处：《临床小儿外科杂志》2014年第3期195-197,共3页Journal of Clinical Pediatric Surgery

摘　　要：目的探讨应用CT技术对发育性髋关节发育不良（developmental dysplasia of the hip，DDH）儿童的股骨头覆盖率进行三维测量的方法及其远期随访的意义。方法通过CT的原始数据结合计算机技术，测量DDH儿童术前、术后髋臼对股骨头的覆盖率。结果手术时年龄3岁或3岁以下的DDH患儿，随访时间超过4年时，股骨头覆盖率明显降低，但与对照组相比无明显差异。手术时年龄大于3岁，随访时间超过4年的DDH患儿股骨头覆盖率较正常对照组高。结论DDH患儿骨盆截骨术和股骨近端内翻截骨术后近期股骨头覆盖率最大，通常高于正常对照组；手术时年龄小于3岁的患儿，远期随访中股骨头覆盖率会有所降低；年龄超过3岁的患儿股骨头覆盖率的变化较小。CT测量股骨头覆盖率具有一定的可行性和可重复性，可用于指导DDH患儿的治疗与随访。Objetive We measured the femoral head coverage rate of children with dysplasia of the hip using CT to study the three-dimensional measuring method and the meaning of its long-term follow-up, nethotis With CT raw data combined with computer technology,we measured the three-dimensional acetabular coverage rate of the femoral head of DDH children both preoperatively and postoperatively. Results To DDH children whose operation age were less than or equal to 3 years old and with a follow-up time more than 4 years, the femoral head coverage rate was significantly decreased over time, but there was no significant differences compared with control group. The femoral head coverage rate of children whose operation age were older than 3 years old and with a follow - up time more than four years was higher than normal control group. Conclusion The femoral head coverage rate of DDH children who have just had pelvic osteotomy and proximal femur varus oste- otomy is the highest, and is usually higher than normal control group. To DDH children whose operation age were less than or equal to 3 years old, their femoral head coverage rate will decrease over time. But to those whose operation age were older than 3 years old,there is no obvious changes of the femoral head coverage rate postoperatively. Measuring femoral head coverage rate with CT is feasible and repeatable, and can be used to guide the treatment and follow-up of DDH children.

关 键 词：髋关节 生长和发育 脱位 股骨头 成像 三维 儿童 

分 类 号：R681.1[医药卫生—骨科学]