儿童股骨颈骨折疗效及股骨头坏死相关因素分析

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Abstract Objective To evaluate the correlation factor between fracture reduction quality and femoral head avasculer necrosis and therapeutic effect and evaluate correlation factor of femoral head avasculer necrosis.Methods We retrospective analyzed the clinical record of 24 paediatric femoral neck fractures in our hospital from January 2004 to December 2015.All were closed fractures and performed operation.There were Delbet type Ⅰ in 0 case，type Ⅱ in 7 cases，type Ⅲ in 12 cases，Type Ⅳ in 5 cases.Early operation was involved in 11 cases，and delayed operation in 13 cases，respectively.Close reduction were involved in 16 cases，and open reduction in 8 cases，respectively.To evaluate postoperation function with Ratliff grade.Results No incision infection and nerve injury happened.There were femoral head avasculer necrosis in 4 cases，premature physeal closure in 4 cases，leg length discrepancy in 6 cases，cox vara in 4 cases，nonunion in 3 cases and implant failure in 1 case.According to Ratliff grade，there were excellent in 15 case，good in 6 cases，bad in 3 cases，with excellent and good rate of 87.5％.Conclusion Fracture anatomic reduction and firm fixation can improve the clinical effect of pediatric femoral neck fractures.Fracture reduction quality is relevant to femoral head avasculer necrosis，nounion and therapeutic effect.Femoral head avasculer necrosis is relevant to transepiphysis screws and fracture subtype，while independent to operation timing，joint decompression and reduction methods.

Key words： femoral neck fractures paediatric children femoral head avasculer necrosis fracture fixation

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