Short-term Clinical Effect Of Fassier-Duval Nail In Treatment Of Children With Osteogenesis Imperfecta Of Lower Extremity Long Bone Fracture Or Deformity

Objective:review analysis of short-term clinical effect and methods of Fassier-Duval extendible intramedullary nail in treatment of children with Osteogenesis Imperfecta of lower extremity long bone fracture or deformity.Methods:from June 2017 to January 2018,the data of 15 children with Osteogenesis Imperfecta treated above include 12 femurs and 3 tibiaes,aged from 5 years and 11 months to 15 years and 1 month old with examples of 6 males and 4 females of them.According to sillence classification,there were 4 cases of type Ⅲ and 6 of type IV with 4 cases of unilateral femur and 4 cases of bilateral femur and 8 of them was performed orthopedic surgery previously.Results:all the 8 cases of treated chidren were following up 3-6 months;child Barthel’s preoperative mean score was 68.5±9.44,the postoperative score was 85.5±8.81,an average increase of 16.5± 6.68,p<0.05;Fassier-Duval extendible intramedullary nail is longer on average 2.86 mm compared with before;8 peices of long bone F-D nails were lengthened with the growth of femur;3 long bone F-D nails had degrees of complications and 4 peices of long bone Fassier-Duval nails were not found lengthened with femur growth at present temporarily.The daily activity function of 9 out of the 10 children,were improved significantly after operation.Conclusion:Fassier-Duval extendible intramedullary nail fixation is an effective intervention for less osteoblastic long bone fracture and long bone bending deformity;nails can extend gradually with the growth of long bone;children’s self-care abilities are enhanced after operation.Moreover,intramedullary extended nails can protect children’s newborn bones.