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Treatment the upper cervical instability caused by posttraumatic with Cervifix system and allogeneic freeze-drying,radiation sterilization bone sheet

Treatment the upper cervical instability caused by posttraum...

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第八届全国脊柱脊髓损伤学术会议

作者： Mei rongcheng Yang shuhua Du jingyuan Department of Orthopedics,Union Hospital,Tongji Medical School of Huazhong University of Science & Technology,Wuhan 430022,China

＜正＞Objective To introduce and evaluate the clinical application of Cervifix internal fixation system and allogeneic freeze-drying,radiation sterilization bone sheet in craniocervical fusion surgery for occipitocervical instability *** 27 cases of occipitocervical instability caused by injury underwent craniocervical fusion using Cervifix internal fixation system and allogeneic freeze-drying, radiation sterilization bone *** the cases were followed up for 6 to 42 months to evaluate the results of internal fixation,bone fusion and neurological defect recovery. Results All the cases gained a bone fusion within 6 *** neurological defect recovered to different *** were no loosened screws,displacement or breakage. Neither complication of neurological defect nor CSM leakage related to the application of Cervifix system was *** The Cervifix internal fixation system has the merit of stable and easy *** is a good alternative in craniocervical fusion surgery. allogeneic freeze-drying,radiation sterilization bone sheet is an ideal material in craniocervical fusion surgery for its good biocompatibility,biomechanical characters and osteogenic ability.

关键词： Cervifix system craniocervical fusion bone allograft

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Revision of Outcomes and Complications Following Open Reduction, and Zigzag Osteotomy Combined with Fibular allograft for Developmental Dysplasia of the Hip in Children

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Open Journal of Orthopedics 2016年第7期6卷 184-200页

作者： Nguyen Ngoc Hung Vietnam National Hospital for Pediatrics Hanoi Vietnam

Background: Reports of the efficacy of open reduction and Zigzag Osteotomy combined Fibular allograft (ZOFA) for developmental dysplasia of the hip. The purposes of this study were to evaluate the long-term outcomes and complications after surgery. Methods: We performed a retrospective match-controlled study in which 158 patients had 181 hips with developmental dysplasia of the hip. Radiographs were found of acetabular index, height of dislocation, Tönnis grade, abduction angle in the spica cast, and Severin grade. At final follow-up, deformity of femoral head or neck or acetabulum was evaluated according to the Severin. Avascular necrosis was rated according to Kalamchi. Clinical evaluation was made according to modified McKay criteria. Results: Between 2009 and 2012, 133 girls (84.2%) and 25 boys (15.8%) with developmental dysplasia of the hip underwent open reduction and ZOFA;135 (85.4%) were unilateral, and 23 (14.6%) were bilateral. Patients were divided into 2 groups: group 1 included 54 patients (62 hips) aged 12 months - ≤18 months and group 2 included 84 patients (119 hips), aged >18 months - ≤36 months. According to Tönnis system: type 3 appeared in 127 hips (70.2%), and Type 4 in 54 hip (29.8%). The anterior approach was used to expose inner table of the ilium and ZOFA in all cases. Acetabular index was improved;preoperation was 42.95°, and latest follow-up 17.26°. The Kirschner Wires (KW) were not used to fix the fibular allograft at the pelvic osteotomy site. All of the fibular allografts were completely incorporated in mean time of 14 weeks (range, 12 weeks - 17 weeks) post-surgery. Clinical evaluation according to modified McKay criteria: satisfactory result (excellent and good) was achieved in 141 hips (77.9%). Avascular Necrosis (AVN) happened in 61 hips (33.7%), redislocation in 18 hips (9.9%), coxa vara in 4 hips (2.2%), trendelenburg gait in 4 hips (2.2%), and supracondylar femoral fractures in 2 hips (1.1%). Conclusions: On the basis o

关键词： DDH Redislocation Revision Surgery Hip Dysplasia bone allograft Salter’s Osteotomy Avascular Necrosis

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