摘要
目的 探讨胫骨延长后骨痂直径与新生骨预后的关系。 方法 1996年 1月～ 2 0 0 1年 12月 ,对 6 8例胫骨延长者测量达所需延长长度时的骨痂直径 ,计算骨痂直径率 (callus diameter ratios,CDR) ;统计拆除外固定架后2～ 4周时新生骨发生骨折例数及畸形角度 ,比较骨折和成角畸形与 CDR的关系。 结果 拆除外固定架前胫骨前屈角度 5度以上畸形 19例 ,其中 11例发生骨折 ;拆除外固定架后胫骨出现 5度以上畸形 6例 ,其中 2例骨折 ;其余 4 3例胫骨延长骨痂正常愈合。计算 CDR值 :CDR值小于 80 % 2 3例 ,其中发生新生骨骨折 13例 ,成角畸形 5度以上者 2 1例 ;CDR在 81%～ 85 %之间 6例 ,成角畸形 5度以上 4例 ;CDR值超过 86 % 39例 ,无畸形或新生骨骨折。 结论 胫骨延长时CDR小于 80 %时 ,容易发生新生骨骨折和畸形 ;CDR大于 85 %时 ,无新生骨骨折和畸形发生 ;两组间具有统计学意义(P<0 .0 5 )。 CDR是判断骨痂能否正常愈合较为理想的检测指标。
Objective To investigate the relationship between the tibia callus diameter ratio(CDR) and prognosis during tibial distraction and the occurrence of late deformity or fracture. Methods We measured tibial lengthening callus diameter and added up the cases of angular deformity and fracture in 68 cases from January 1996 to December 2001, to calculated callus diameter ratios and compare the relationship between the tibia callus diameter during tibial distraction and the occurrence of late callus angular deformity or fracture. Results In 23 cases of CDR<80%, 13 cases had new bone fracture, 21 cases had angular deformity >5 degree. In 6 cases of 81%<CDR<85%, there were 4 cases of angular deformity >5 degree. In the other 39 cases of CDR>85%, there were no fracture and angular deformity. Conclusion When the CDR was >85%, there were no angular deformity and fracture, but when the CDR was <80%, the complications of fracture and angular deformity occur. CDR is a better alarming index for preventing the complications occurring in tibial lengthening.
出处
《中国修复重建外科杂志》
CAS
CSCD
2004年第3期174-176,共3页
Chinese Journal of Reparative and Reconstructive Surgery
关键词
胫骨延长
骨痂直径
新生骨
预后
临床分析
成角畸形
新生骨骨折
Tibial lengthening Callus diameter ratios New bone fracture Angular deformity Alarming index.
