Lu Hongxu,Li Ming,Liu Xing,et al.The internal fixation of absorbable rods for pelvic triple osteotomy in children Perthes disease.[J].Journal of Clinical Pediatric Surgery,,17():29-33.
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The internal fixation of absorbable rods for pelvic triple osteotomy in children Perthes disease.

Journal of Clinical Pediatric Surgery[ISSN:1671-6353/CN:43-1380/R] volume: 第17卷 Number: 2018 01 Page: 29-33 Column: 论著 Date of publication: 2018-01-28
Author(s):
Lu Hongxu; Li Ming; Liu Xing; Liu Chuankang; Luo Cong; Cao Yujiang; Qu Xiangyang; Weng Liuqi; Zhou Hai; Zheng Chao.
Orthopedic Center of Childrens Hospital of Chongqing Medical University,Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Pediatrics,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders,Chongqing,400014,China.
Keywords:
LeggPerthes Disease;  Triple osteotomy;  Internal fixation;  Absorbable rod;  Child
Document code:
A
Abstract:
ObjectiveTo evaluate the feasibility,efficacy and advantage of triple pelvic osteotomy with absorbable rods fixation for the treatment of Perthes disease.MethodsFrom April 2007 to December 2014,74 cases of Perthes disease(79 hips) were collected in this study.According to Catteralls classification,there were 59 hips of grade Ⅲ and 20 hips of grade Ⅳ.All patients were treated by Pol Le Coeurs triple osteotomy with self-reinforced absorbable (SRPLLA) rods fixation at iliac osteotomy sites.ResultsAll cases were followed up for 14 months to 93 months,with an average of 46 months.According to the criteria of Mckay for the diseases functional prognosis,there were 51 cases with excellent hip function,15 cases with good hip function and 8 cases with fair hip function,the “excellent” and “good” rate reached up to 88.61%.Radiographic images revealed that all osteotomy bones were healed without loosening of fixation,acetabular fragment migration,iliac bone grafts osteolysis or dislocation.The percentage coverage of the femoral head improved from average 75.06% before operation to 95.70% at final follow-up(t=-32.06，P＜0.001).The average epiphyseal height ratio was 65.49% before operation,and it was 80.86% at final review(t=-48.13，P＜0.001).The initial CE angle was 16.22°,which finally increased to 34.47°(t=-44.58，P＜0.001).The average Sharpangle was decreased from 41.46° before surgery to 24.16° after operation(t=51.44，P＜0.001).ConclusionAbsorbable rods instead of kirschner wires or screws used for fixing osteotomy sites in triple pelvic osteotomy is a simple,reliable and effective way to treat cutting pelvis and iliac bone grafts in Perthes disease.The operation did not receive obvious adverse reactions and can surely avoid the secondary removal operation.
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