BACKGROUND Recently,medical three-dimensional printing technology(3DPT)has demonstrated potential benefits for the treatment of cubitus varus deformity(CVD)by improving accuracy of the osteotomy through the use of an ...BACKGROUND Recently,medical three-dimensional printing technology(3DPT)has demonstrated potential benefits for the treatment of cubitus varus deformity(CVD)by improving accuracy of the osteotomy through the use of an osteotomy guide,with or without a patient-mated plate.Here,we present an interesting CVD case,involving a patient who was treated with corrective biplanar chevron osteotomy using an innovative customized osteotomy guide and a newly designed patient-matched monoblock crosslink plate created with 3DPT.CASE SUMMARY A 32-year-old female presented with a significant CVD from childhood injury.A computer simulation was processed using images from computerized tomography scans of both upper extremities.The biplanar chevron osteotomy was designed to create identical anatomy between the mirror image of the contralateral distal humerus and the osteotomized distal humerus.Next,the customized osteotomy guide and patient-matched monoblock crosslink plate were designed and printed.A simulation osteotomy was created for the real-sized bone model,and the operation was performed using the posterior paratricipital approach with k-wire positioning from the customized osteotomy guide as a predrilled hole for screw fixation to achieve immediate control of the reduction after osteotomy.Our method allowed for successful treatment of the CVD case,significantly improving the patient’s radiographic and clinical outcomes,with satisfactory result.CONCLUSION 3DPT-created patient-matched osteotomy guide and instrumentation provides accurate control during CVD correction.展开更多
The outward angulation of elbow with supinated forearm is cubitus varus deformity. This deformity is often seen as sequelae of malunited supracondylar fracture of humerus in paediatric age group of 5-8 years. The defo...The outward angulation of elbow with supinated forearm is cubitus varus deformity. This deformity is often seen as sequelae of malunited supracondylar fracture of humerus in paediatric age group of 5-8 years. The deformity is usually non-progressive, but in cases of physeal injury or congenital bony bar formation in the medial condyle of humerus, the deformity is progressive and can he grotesque in appearance. Various types of osteotomies are defined for standard non-progressive cubitus varus deformity, while multiple surgeries are required for progressive deformity until skeletal maturity. In this study we described a novel surgical approach and osteotomy of distal humerus in a 5 years old boy having grotesque progressive cubitus varus deformity, achieving good surgical outcome.展开更多
目的:应用影像归档和通信系统(picture archiving and communication system,PACS)和Photoshop系统辅助等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻的疗效分析。方法:回顾性分析自2014年10月至2019年10月采用肱骨远端等腰三角形截...目的:应用影像归档和通信系统(picture archiving and communication system,PACS)和Photoshop系统辅助等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻的疗效分析。方法:回顾性分析自2014年10月至2019年10月采用肱骨远端等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻20例的临床资料,男13例,女7例;年龄3.2~13.5岁,中位数6.65岁;左侧12例,右侧8例。均为肱骨远端骨折畸形愈合后的远期并发症。术前用PACS系统设计截骨,模拟测量顶角位置及底边长度。再将图片导入Photoshop系统,画出术后模拟效果图,指导模拟截骨。结果:20例患儿均获得随访,时间20~24个月,中位数22.5个月。最后一次复查时患肢提携角5°~13°,中位数8.3°。疗效根据Flynn肘关节功能评分标准评价:优16例,良2例,可2例。结论:PACS和Photoshop系统辅助下等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻取得良好的临床疗效。展开更多
文摘BACKGROUND Recently,medical three-dimensional printing technology(3DPT)has demonstrated potential benefits for the treatment of cubitus varus deformity(CVD)by improving accuracy of the osteotomy through the use of an osteotomy guide,with or without a patient-mated plate.Here,we present an interesting CVD case,involving a patient who was treated with corrective biplanar chevron osteotomy using an innovative customized osteotomy guide and a newly designed patient-matched monoblock crosslink plate created with 3DPT.CASE SUMMARY A 32-year-old female presented with a significant CVD from childhood injury.A computer simulation was processed using images from computerized tomography scans of both upper extremities.The biplanar chevron osteotomy was designed to create identical anatomy between the mirror image of the contralateral distal humerus and the osteotomized distal humerus.Next,the customized osteotomy guide and patient-matched monoblock crosslink plate were designed and printed.A simulation osteotomy was created for the real-sized bone model,and the operation was performed using the posterior paratricipital approach with k-wire positioning from the customized osteotomy guide as a predrilled hole for screw fixation to achieve immediate control of the reduction after osteotomy.Our method allowed for successful treatment of the CVD case,significantly improving the patient’s radiographic and clinical outcomes,with satisfactory result.CONCLUSION 3DPT-created patient-matched osteotomy guide and instrumentation provides accurate control during CVD correction.
文摘The outward angulation of elbow with supinated forearm is cubitus varus deformity. This deformity is often seen as sequelae of malunited supracondylar fracture of humerus in paediatric age group of 5-8 years. The deformity is usually non-progressive, but in cases of physeal injury or congenital bony bar formation in the medial condyle of humerus, the deformity is progressive and can he grotesque in appearance. Various types of osteotomies are defined for standard non-progressive cubitus varus deformity, while multiple surgeries are required for progressive deformity until skeletal maturity. In this study we described a novel surgical approach and osteotomy of distal humerus in a 5 years old boy having grotesque progressive cubitus varus deformity, achieving good surgical outcome.
文摘目的:应用影像归档和通信系统(picture archiving and communication system,PACS)和Photoshop系统辅助等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻的疗效分析。方法:回顾性分析自2014年10月至2019年10月采用肱骨远端等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻20例的临床资料,男13例,女7例;年龄3.2~13.5岁,中位数6.65岁;左侧12例,右侧8例。均为肱骨远端骨折畸形愈合后的远期并发症。术前用PACS系统设计截骨,模拟测量顶角位置及底边长度。再将图片导入Photoshop系统,画出术后模拟效果图,指导模拟截骨。结果:20例患儿均获得随访,时间20~24个月,中位数22.5个月。最后一次复查时患肢提携角5°~13°,中位数8.3°。疗效根据Flynn肘关节功能评分标准评价:优16例,良2例,可2例。结论:PACS和Photoshop系统辅助下等腰三角形截骨并克氏针张力扣固定治疗儿童肘内翻取得良好的临床疗效。
