Wang Peng,Du Zhijun,Lu Shijiao,et al.The application of 3D printing in individualized surgical plan of developmental dislocation of the hip in children.[J].Journal of Clinical Pediatric Surgery,,17():252-258.
The application of 3D printing in individualized surgical plan of developmental dislocation of the hip in children.
Journal of Clinical Pediatric Surgery[ISSN:1671-6353/CN:43-1380/R]
volume:
第17卷
Number:
2018 04
Page:
252-258
Column:
专题讨论
Date of publication:
2018-04-28
- Keywords:
- 3D Printing; Computed aided surgery; Guided template; Developmental dislocation of hip; Children
- Document code:
- A
- Abstract:
- ObjectiveTo explore the application of 3D printing in surgical plan of developmental dislocation of hip (DDH) in children. Methods18 children of DDH from 2015 Jan to Dec were randomly divided into two groups: 3D printing group and normal group. Simulation model and guided template were made by 3D printing for individualized surgical plan. The variance between digital model and entity were measured via neck shaft angle, anteversion angle, axis of acetabulum, volume and surface of acetabulum. The surgical time, amount of blooding, radiation and hospitalization expense were analyzed. The score of Mackay and Severin criterion were applied to evaluate the affected hip function. P<0.05 was regarded as statistically significant.ResultsNeck shaft angle and anteversion angle in digital model were 153.7°±10.9° and 45.3°±7.3° respectively, which in entity were 157.3°±7.4° and 51.2°±3.7° respectively. Long axis was (47.7±7.79)mm while short axis was(39.7±7.14)mm in digital model. Meanwhile, long axis was (46±8.24)mm with short axis (40.2±6.06)mm in entity. There was no significant difference between the two results. Moreover, the volume and surface of digital model was (6 569±738)mm3 and (1 932±723)mm2 respectively, whereas the entity was(6 233 ± 506)mm3 and (1 751 ± 421)mm2 in volume and surface. During 3D printing group, 4 cases were undergoing combined salter osteotomy, 2 cases combined Pemberton osteotomy, 1 case combined Dega osteotomy and 1 case Chiari osteotomy. In normal group, 5 cases underwent combined salter osteotomy, 3 cases Pemberton osteotomy and 2 cases osteotomy. In normal group, the mean surgical time was 3.4±0.48 h, with mean amount of blooding(355±57)mL and mean radiation(14±2.9)times.meanwhile, in 3D printing group, the mean surgical time was(2.82±0.42)h, mean amount of blooding 2 was (85±40)mL and mean radiation was(5.7±1.0)times, which apparently shorter than the normal group(P<0.01). The cost of 3D printing group was ￥2 768±1 401, Meanwhile, the cost of normal group was ￥26 934±2 893, which was no significant variance (t=0.685,P>0.05). All cases were followedup to 0.6 years. The excellentgood ratio with Mackay criterion in 3D printing group was 87.5% while 90% in normal group, there was no obviously difference between two groups（χ2=0.028，P=0.867）. Meanwhile, the excellentgood ratio with Severin criterion in 3D printing group was 100% while 90% in normal group, there was no significant difference between the two groups either（χ2=0.847，P=0.357）.Conclusion3D printing and computed aided guided template provided a good method for individualized surgical plan of developmental dislocation of hip in children.
Last Update:
2018-04-25