caa a22 4500 445833718 CHVBK 20180317145323.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00586-011-1693-x doi (NATIONALLICENCE)springer-10.1007/s00586-011-1693-x Post atlantoaxial fusion for unilateral cleft of atlas posterior arch associated with os odontoideum: case report and technique note [Elektronische Daten] [Jian Yang, Bin Ni, Wangjun Yan, Fengjin Zhou, Jinshui Chen] A case of a 34-year-old female with unilateral cleft of atlas posterior arch associated with os odontoideum is reported. The patient had experienced neck pain for 6months. Fivedays earlier to admission the pain aggravated as a result of mild head trauma from behind. Imaging examinations revealed C1-2 subluxation as well as the deformity. After 3days of skull traction, a sound C1-2 reduction was achieved. Post atlantoaxial fusion using bilateral transarticular screws combined with C1 laminar hook on the intact side and autogenous bone graft was performed. On the sixth month of postoperative follow-up, CT revealed solid fusion was achieved. No related complications were detected within 3years of follow-up. The clinical manifestations and imaging findings were presented. The incidence and etiopathogenesis of hypoplastic posterior arch of the atlas were concisely introduced. Techniques of post atlantoaxial fusion under circumstances of unilateral C1 posterior elements defects were discussed. The authors believe bilateral transarticular screws combined with C1 laminar hook on the intact side and autogenous bone graft can be applicable to atlantoaxial fusion on the premise of preoperative C1-2 reduction and C1 posterior arch remaining>1/2 of its full length. Springer-Verlag, 2011 Atlantoaxial fusion nationallicence Os odontoideum nationallicence Unilateral cleft of atlas posterior arch nationallicence Yang Jian Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut Ni Bin Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut Yan Wangjun Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut Zhou Fengjin Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut Chen Jinshui Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut European Spine Journal Springer-Verlag 20(2011-07-01), 284-288 0940-6719 20<284 2011 20 586 https://doi.org/10.1007/s00586-011-1693-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1693-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Jian Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Ni Bin Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Yan Wangjun Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Zhou Fengjin Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut NATIONALLICENCE 700 1- Chen Jinshui Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Huangpu District, 200003, Shanghai, People's Republic of China aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20(2011-07-01), 284-288 0940-6719 20<284 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer