caa a22 4500 445831405 CHVBK 20180317145316.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00586-011-1690-0 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1690-0 Medium-term outcomes of C3-6 laminoplasty for cervical myelopathy: a prospective study with a minimum 5-year follow-up [Elektronische Daten] [Hironobu Sakaura, Noboru Hosono, Yoshihiro Mukai, Motoki Iwasaki, Hideki Yoshikawa] C3-6 laminoplasty preserving muscle insertions into the C7 spinous process is reportedly associated with a significantly decreased frequency of postoperative axial neck pain. However, no prospective study has reported medium-term outcomes of C3-6 laminoplasty. The purpose of this study was to elucidate medium-term outcomes after C3-6 laminoplasty. Subjects comprised 31 patients with cervical myelopathy who underwent C3-6 laminoplasty preserving all bilateral muscles attached to the C2 and C7 spinous processes and were followed for ≥5years. Clinical and radiological data were prospectively collected. Neurological status was assessed using Japanese Orthopaedic Association (JOA) score. Axial neck pain was graded as severe, moderate or mild. Sagittal alignment of the cervical spine and progression of ossification of the posterior longitudinal ligament (OPLL) were assessed by comparing serial lateral radiographs. Mean JOA score improved significantly from 10.6 before surgery to 14.7 at the time of maximum recovery, and slightly declined to 14.3 at final follow-up. In six patients who developed late deterioration, these conditions were unrelated to the cervical spine. As of final follow-up, only one patient (3.2%) had complained of axial neck pain persisting for 5years. Although progression of OPLL was found in 63.6% of patients, none had experienced neurological deterioration due to this progression. At final follow-up, sagittal alignment of the cervical spine was more lordotic than before surgery. Medium-term outcomes of C3-6 laminoplasty were satisfactory. Frequencies of persistent axial neck pain and loss of cervical lordosis after surgery remained significantly decreased for ≥5years postoperatively. Springer-Verlag, 2011 Cervical myelopathy nationallicence Laminoplasty nationallicence Medium-term outcomes nationallicence Postoperative complication nationallicence Second and seventh cervical vertebrae nationallicence Sakaura Hironobu Department of Orthopaedic Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, 660-8511, Amagasaki, Hyogo, Japan aut Hosono Noboru Department of Orthopaedic Surgery, Osaka Kosei-nenkin Hospital, Osaka, Japan aut Mukai Yoshihiro Department of Orthopaedic Surgery, Osaka Kosei-nenkin Hospital, Osaka, Japan aut Iwasaki Motoki Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan aut Yoshikawa Hideki Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan aut European Spine Journal Springer-Verlag 20/6(2011-06-01), 928-933 0940-6719 20:6<928 2011 20 586 https://doi.org/10.1007/s00586-011-1690-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1690-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sakaura Hironobu Department of Orthopaedic Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, 660-8511, Amagasaki, Hyogo, Japan aut NATIONALLICENCE 700 1- Hosono Noboru Department of Orthopaedic Surgery, Osaka Kosei-nenkin Hospital, Osaka, Japan aut NATIONALLICENCE 700 1- Mukai Yoshihiro Department of Orthopaedic Surgery, Osaka Kosei-nenkin Hospital, Osaka, Japan aut NATIONALLICENCE 700 1- Iwasaki Motoki Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan aut NATIONALLICENCE 700 1- Yoshikawa Hideki Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/6(2011-06-01), 928-933 0940-6719 20:6<928 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer