{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,23]],"date-time":"2026-05-23T09:06:27Z","timestamp":1779527187001,"version":"3.53.1"},"reference-count":60,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,9]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Cervical expansile open-door laminoplasties (EOLPs) have an open side and a hinge side, with the open side being bridged by grafts or miniplates. The authors explored the possibility that the open-door side might have a greater incidence of C5 palsy due to a greater stretch of the ipsilateral C5 nerve root.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>This study was a retrospective review of prospectively collected data over a period of 25 years specifically assessing surgical complications. Included were patients who underwent EOLP for myelopathy, radiculopathy, or mild central cord injuries (American Spinal Injury Association Impairment Scale [AIS] grade D). Exclusion criteria included preexisting C5 weakness; patients with AIS grade A, B, or C injury; and added instrumentation or additional surgical procedures. Patients were monitored postoperatively for C5 palsy or any other complications. A comparison group included patients who underwent cervical laminectomy and fusion (CLF).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>A total of 327 laminoplasties were collected, and 31 patients were excluded because of severe spinal cord injury (AIS grades A\u2013C), 3 for preoperative C5 weakness, and 21 for instrumentation or additional surgical procedures. Thus, 272 patients were analyzed with a mean age of 59.9 years (range 22\u201388 years). Diagnoses at presentation were cervical myelopathy (84.1%), central cord syndrome (7.2%), cervical myeloradiculopathy (3.4%), ossification of the posterior longitudinal ligament (1.9%), and other (3.4%). The most common complications were C5 palsy (n = 7, 2.6%) and wound infection (n = 7, 2.6%). Of the 7 cases of postoperative C5 palsies in this study, 6 occurred on the side of the open door. Of the C5 palsies, 2 were mild, 3 were moderate, and 2 were severe. Two of the 7 C5 palsies had a delayed (&gt; 24 hours) onset. The C5 palsy incidence after CLF was 2.7% with no side preference.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>C5 palsy after cervical decompression for myelopathy is a known occurrence, with a rate of 2.6% in the current study. The authors found that C5 palsies more commonly occur on the open side of the laminoplasty. This could be due to a greater manipulation of the nerve root on the side of the open door or greater stretch of the C5 root on the open-door side. If clinical symptoms and anatomical stenosis are symmetric, the authors recommend creating the laminoplasty hinge on the patient\u2019s dominant side to minimize potential loss of dominant proximal arm function.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2023.6.focus23297","type":"journal-article","created":{"date-parts":[[2023,9,1]],"date-time":"2023-09-01T06:59:14Z","timestamp":1693551554000},"page":"E6","source":"Crossref","is-referenced-by-count":8,"title":["Does hinge sidedness influence laterality of C5 palsy after expansile open-door cervical laminoplasty?"],"prefix":"10.3171","volume":"55","author":[{"given":"David J.","family":"Levi","sequence":"first","affiliation":[{"name":"University of Miami Miller School of Medicine, Miami; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. Damian","family":"Brusko","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allan D.","family":"Levi","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael Y.","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"3 suppl","key":"b1","series-title":"J Neurosurg","first-page":"230","article-title":"Cervical laminoplasty: a critical review","volume":"98","author":"Ratliff JK","year":"2003","unstructured":"Ratliff JK, Cooper PR. Cervical laminoplasty: a critical review. J Neurosurg. 2003;98(3 suppl):230\u2013238."},{"issue":"1","key":"b2","series-title":"Int J Spine Surg","first-page":"6","article-title":"Open door laminoplasty: creation of a new vertebral arch","volume":"11","author":"Lara-Almunia M","year":"2017","unstructured":"Lara-Almunia M, Hernandez-Vicente J. Open door laminoplasty: creation of a new vertebral arch. Int J Spine Surg. 2017;11(1):6."},{"issue":"2 suppl","key":"b3","series-title":"J Neurosurg","first-page":"170","article-title":"Modified open-door laminoplasty for treatment of neurological deficits in younger patients with congenital spinal stenosis: analysis of clinical and radiographic data","volume":"90","author":"Shaffrey CI","year":"1999","unstructured":"Shaffrey CI, Wiggins GC, Piccirilli CB, Young JN, Lovell LR. Modified open-door laminoplasty for treatment of neurological deficits in younger patients with congenital spinal stenosis: analysis of clinical and radiographic data. J Neurosurg. 1999;90(2 suppl):170\u2013177."},{"issue":"1 Supp1 1","key":"b4","series-title":"Neurosurgery","first-page":"S154","article-title":"Open-door expansile cervical laminoplasty","volume":"60","author":"Vitarbo E","year":"2007","unstructured":"Vitarbo E, Sheth RN, Levi AD. Open-door expansile cervical laminoplasty. Neurosurgery. 2007;60(1 Supp1 1):S154\u2013S159."},{"issue":"7","key":"b5","series-title":"Spine (Phila Pa 1976)","first-page":"693","article-title":"Expansive open-door laminoplasty for cervical spinal stenotic myelopathy","volume":"8","author":"Hirabayashi K","year":"1983","unstructured":"Hirabayashi K, Watanabe K, Wakano K, Suzuki N, Satomi K, Ishii Y. Expansive open-door laminoplasty for cervical spinal stenotic myelopathy. Spine (Phila Pa 1976). 1983;8(7):693\u2013699."},{"issue":"3","key":"b6","series-title":"Neurosurgery","first-page":"770","article-title":"Adjacent segment disease: an uncommon complication after cervical expansile laminoplasty: case report","volume":"53","author":"Wang MY","year":"2003","unstructured":"Wang MY, Green BA, Vitarbo E, Levi AD. Adjacent segment disease: an uncommon complication after cervical expansile laminoplasty: case report. Neurosurgery. 2003;53(3):770\u2013773."},{"issue":"6","key":"b7","series-title":"Surg Neurol","first-page":"487","article-title":"Clinical outcomes following cervical laminoplasty for 204 patients with cervical spondylotic myelopathy","volume":"62","author":"Wang MY","year":"2004","unstructured":"Wang MY, Shah S, Green BA. Clinical outcomes following cervical laminoplasty for 204 patients with cervical spondylotic myelopathy. Surg Neurol. 2004;62(6):487\u2013493."},{"issue":"2","key":"b8","series-title":"Neurosurgery","first-page":"264","article-title":"A prospective, randomized trial comparing expansile cervical laminoplasty and cervical laminectomy and fusion for multilevel cervical myelopathy","volume":"70","author":"Manzano GR","year":"2012","unstructured":"Manzano GR, Casella G, Wang MY, Vanni S, Levi AD. A prospective, randomized trial comparing expansile cervical laminoplasty and cervical laminectomy and fusion for multilevel cervical myelopathy. Neurosurgery. 2012;70(2):264\u2013277."},{"issue":"5","key":"b9","series-title":"Spine Surg Relat Res","first-page":"460","article-title":"Comparative utilization of laminoplasty in the United States and Japan","volume":"6","author":"Waddell WH","year":"2022","unstructured":"Waddell WH, Weisenthal BM, Golinvaux N,  Comparative utilization of laminoplasty in the United States and Japan. Spine Surg Relat Res. 2022;6(5):460\u2013463."},{"issue":"10","key":"b10","series-title":"JAMA","first-page":"942","article-title":"Effect of ventral vs dorsal spinal surgery on patient-reported physical functioning in patients with cervical spondylotic myelopathy: a randomized clinical trial","volume":"325","author":"Ghogawala Z","year":"2021","unstructured":"Ghogawala Z, Terrin N, Dunbar MR,  Effect of ventral vs dorsal spinal surgery on patient-reported physical functioning in patients with cervical spondylotic myelopathy: a randomized clinical trial. JAMA. 2021;325(10):942\u2013951."},{"issue":"12","key":"b11","series-title":"Spine (Phila Pa 1976)","first-page":"1330","article-title":"Laminoplasty versus laminectomy and fusion for multilevel cervical myelopathy: an independent matched cohort analysis","volume":"26","author":"Heller JG","year":"2001","unstructured":"Heller JG, Edwards CC II, Murakami H, Rodts GE. Laminoplasty versus laminectomy and fusion for multilevel cervical myelopathy: an independent matched cohort analysis. Spine (Phila Pa 1976). 2001;26(12):1330\u20131336."},{"issue":"1","key":"b12","series-title":"J Neurosurg Spine","first-page":"49","article-title":"Simulated bundled payments for four common surgical approaches to treat degenerative cervical myelopathy: a consideration to break the clinical equipoise","volume":"37","author":"Jain N","year":"2022","unstructured":"Jain N, Sharma M, Wang D, Ugiliweneza B, Drazin D, Boakye M. Simulated bundled payments for four common surgical approaches to treat degenerative cervical myelopathy: a consideration to break the clinical equipoise. J Neurosurg Spine. 2022;37(1):49\u201356."},{"issue":"5","key":"b13","series-title":"Quant Imaging Med Surg","first-page":"1888","article-title":"Modified axial computed tomography classification of cervical ossification of the posterior longitudinal ligament: selecting the optimal operating procedure and enhancing the accuracy of prognosis","volume":"11","author":"Shao T","year":"2021","unstructured":"Shao T, Gu J, Zhu Y,  Modified axial computed tomography classification of cervical ossification of the posterior longitudinal ligament: selecting the optimal operating procedure and enhancing the accuracy of prognosis. Quant Imaging Med Surg. 2021;11(5):1888\u20131898."},{"issue":"4","key":"b14","series-title":"J Neurosurg Spine","first-page":"592","article-title":"Risk factors and preventive measures for C5 palsy after cervical open-door laminoplasty","volume":"32","author":"Nakajima H","year":"2020","unstructured":"Nakajima H, Kuroda H, Watanabe S, Honjoh K, Matsumine A. Risk factors and preventive measures for C5 palsy after cervical open-door laminoplasty. J Neurosurg Spine. 2020;32(4):592\u2013599."},{"issue":"3","key":"b15","series-title":"J Bone Joint Surg Br","first-page":"393","article-title":"C5 palsy after cervical laminoplasty: a iamienter study","volume":"92","author":"Imagama S","year":"2010","unstructured":"Imagama S, Matsuyama Y, Yukawa Y,  C5 palsy after cervical laminoplasty: a iamienter study. J Bone Joint Surg Br. 2010;92(3):393\u2013400."},{"issue":"45","key":"b16","series-title":"Medicine (Baltimore)","first-page":"e8560","article-title":"Incidence of C5 nerve root palsy after cervical surgery: a meta-analysis for last decade","volume":"96","author":"Wang T","year":"2017","unstructured":"Wang T, Wang H, Liu S, Ding WY. Incidence of C5 nerve root palsy after cervical surgery: a meta-analysis for last decade. Medicine (Baltimore). 2017;96(45):e8560."},{"issue":"1","key":"b17","series-title":"Turk Neurosurg","first-page":"110","article-title":"Preoperatively, which parameter allows us to predict the C5 palsy after cervical open-door laminoplasty?","volume":"33","author":"Uzunoglu I","year":"2023","unstructured":"Uzunoglu I, Gurkan G, Cingoz ID,  Preoperatively, which parameter allows us to predict the C5 palsy after cervical open-door laminoplasty? Turk Neurosurg. 2023;33(1):110\u2013117."},{"issue":"11","key":"b18","series-title":"Ann Transl Med","first-page":"634","article-title":"Risk factors for C5 palsy following the posterior spinal process-splitting laminoplasty for cervical ossification of the posterior longitudinal ligament: a case control study","volume":"10","author":"Li N","year":"2022","unstructured":"Li N, Zhao K, An Y, Yan K, Liu B, He D. Risk factors for C5 palsy following the posterior spinal process-splitting laminoplasty for cervical ossification of the posterior longitudinal ligament: a case control study. Ann Transl Med. 2022;10(11):634."},{"issue":"4","key":"b19","series-title":"J Neurosurg Spine","first-page":"457","article-title":"Defining postoperative C5 palsy and recovery: a systematic review","volume":"38","author":"Deshpande N","year":"2022","unstructured":"Deshpande N, Stino AM, Smith BW,  Defining postoperative C5 palsy and recovery: a systematic review. J Neurosurg Spine. 2022;38(4):457\u2013464."},{"issue":"4","key":"b20","series-title":"J Neurosurg Spine","first-page":"365","article-title":"Simple presurgical method of predicting C5 palsy after cervical laminoplasty using C5 nerve root ultrasonography","volume":"29","author":"Takeuchi M","year":"2018","unstructured":"Takeuchi M, Wakao N, Kamiya M, Hirasawa A, Murotani K, Takayasu M. Simple presurgical method of predicting C5 palsy after cervical laminoplasty using C5 nerve root ultrasonography. J Neurosurg Spine. 2018;29(4):365\u2013370."},{"key":"b21","series-title":"World Neurosurg","first-page":"e169","article-title":"Analysis of the risk factors for C5 nerve palsy after cervical posterior open-door laminoplasty for patients with cervical spondylotic myelopathy-from the perspective of cervical sagittal parameters","volume":"165","author":"Zhu L","year":"2022","unstructured":"Zhu L, Miao Y, Mao Y, Zuo KK. Analysis of the risk factors for C5 nerve palsy after cervical posterior open-door laminoplasty for patients with cervical spondylotic myelopathy-from the perspective of cervical sagittal parameters. World Neurosurg. 2022;165:e169\u2013e174."},{"issue":"7","key":"b22","series-title":"J Biomech Eng","first-page":"071006","article-title":"Biomechanical effects on cervical spinal cord and nerve root following laminoplasty for ossification of the posterior longitudinal ligament in the cervical spine: a comparison between open-door and double-door laminoplasty using finite element analysis","volume":"140","author":"Khuyagbaatar B","year":"2018","unstructured":"Khuyagbaatar B, Kim K, Purevsuren T, Lee SH, Kim YH. Biomechanical effects on cervical spinal cord and nerve root following laminoplasty for ossification of the posterior longitudinal ligament in the cervical spine: a comparison between open-door and double-door laminoplasty using finite element analysis. J Biomech Eng. 2018;140(7):071006."},{"issue":"1","key":"b23","series-title":"Spine (Phila Pa 1976)","first-page":"E10","article-title":"Impact of multifidus muscle swelling on C5 palsy after cervical laminoplasty","volume":"45","author":"Usami Y","year":"2020","unstructured":"Usami Y, Nakaya Y, Hayama S, Nakano A, Fujishiro T, Neo M. Impact of multifidus muscle swelling on C5 palsy after cervical laminoplasty. Spine (Phila Pa 1976). 2020;45(1):E10\u2013E17."},{"issue":"7","key":"b24","series-title":"J Am Acad Orthop Surg","first-page":"e142","article-title":"Cervical laminoplasty: indications, surgical considerations, and clinical outcomes","volume":"26","author":"Cho SK","year":"2018","unstructured":"Cho SK, Kim JS, Overley SC, Merrill RK. Cervical laminoplasty: indications, surgical considerations, and clinical outcomes. J Am Acad Orthop Surg. 2018;26(7):e142\u2013e152."},{"issue":"10","key":"b25","series-title":"Spine (Phila Pa 1976)","first-page":"E574","article-title":"Outcomes and related factors of C5 palsy following cervical laminectomy with instrumented fusion compared with laminoplasty","volume":"41","author":"Lee SH","year":"2016","unstructured":"Lee SH, Suk KS, Kang KC,  Outcomes and related factors of C5 palsy following cervical laminectomy with instrumented fusion compared with laminoplasty. Spine (Phila Pa 1976). 2016;41(10):E574\u2013E579."},{"issue":"11","key":"b26","series-title":"Spine (Phila Pa 1976)","first-page":"741","article-title":"Choice of the open side in unilateral open-door laminoplasty for cervical ossification of the posterior longitudinal ligament","volume":"45","author":"Tang Y","year":"2020","unstructured":"Tang Y, Zhou S, Wang Z, Huang W, Jia L, Chen X. Choice of the open side in unilateral open-door laminoplasty for cervical ossification of the posterior longitudinal ligament. Spine (Phila Pa 1976). 2020;45(11):741\u2013746."},{"issue":"11","key":"b27","series-title":"J Bone Joint Surg Br","first-page":"1541","article-title":"Potential risk of thermal damage to cervical nerve roots by a high-speed drill","volume":"91","author":"Hosono N","year":"2009","unstructured":"Hosono N, Miwa T, Mukai Y, Takenaka S, Makino T, Fuji T. Potential risk of thermal damage to cervical nerve roots by a high-speed drill. J Bone Joint Surg Br. 2009;91(11):1541\u20131544."},{"issue":"3","key":"b28","series-title":"J Neurosci Methods","first-page":"165","article-title":"Hyperthermia-induced damage to rat sciatic nerve assessed in vivo with functional methods and with electrophysiology","volume":"45","author":"De Vrind HH","year":"1992","unstructured":"De Vrind HH, Wondergem J, Haveman J. Hyperthermia-induced damage to rat sciatic nerve assessed in vivo with functional methods and with electrophysiology. J Neurosci Methods. 1992;45(3):165\u2013174."},{"issue":"1","key":"b29","series-title":"Neurosurgery","first-page":"119","article-title":"Open-door cervical expansile laminoplasty","volume":"54","author":"Wang MY","year":"2004","unstructured":"Wang MY, Green BA. Open-door cervical expansile laminoplasty. Neurosurgery. 2004;54(1):119\u2013124."},{"issue":"1","key":"b30","series-title":"J Spine Surg","first-page":"290","article-title":"Cervical laminoplasty: indication, technique, complications","volume":"6","author":"Weinberg DS","year":"2020","unstructured":"Weinberg DS, Rhee JM. Cervical laminoplasty: indication, technique, complications. J Spine Surg. 2020;6(1):290\u2013301."},{"issue":"3 suppl","key":"b1","series-title":"J Neurosurg","first-page":"230","article-title":"Cervical laminoplasty: a critical review","volume":"98","author":"Ratliff JK","year":"2003","unstructured":"Ratliff JK, Cooper PR. Cervical laminoplasty: a critical review. J Neurosurg. 2003;98(3 suppl):230\u2013238."},{"issue":"1","key":"b2","series-title":"Int J Spine Surg","first-page":"6","article-title":"Open door laminoplasty: creation of a new vertebral arch","volume":"11","author":"Lara-Almunia M","year":"2017","unstructured":"Lara-Almunia M, Hernandez-Vicente J. Open door laminoplasty: creation of a new vertebral arch. Int J Spine Surg. 2017;11(1):6."},{"issue":"2 suppl","key":"b3","series-title":"J Neurosurg","first-page":"170","article-title":"Modified open-door laminoplasty for treatment of neurological deficits in younger patients with congenital spinal stenosis: analysis of clinical and radiographic data","volume":"90","author":"Shaffrey CI","year":"1999","unstructured":"Shaffrey CI, Wiggins GC, Piccirilli CB, Young JN, Lovell LR. Modified open-door laminoplasty for treatment of neurological deficits in younger patients with congenital spinal stenosis: analysis of clinical and radiographic data. J Neurosurg. 1999;90(2 suppl):170\u2013177."},{"issue":"1 Supp1 1","key":"b4","series-title":"Neurosurgery","first-page":"S154","article-title":"Open-door expansile cervical laminoplasty","volume":"60","author":"Vitarbo E","year":"2007","unstructured":"Vitarbo E, Sheth RN, Levi AD. Open-door expansile cervical laminoplasty. Neurosurgery. 2007;60(1 Supp1 1):S154\u2013S159."},{"issue":"7","key":"b5","series-title":"Spine (Phila Pa 1976)","first-page":"693","article-title":"Expansive open-door laminoplasty for cervical spinal stenotic myelopathy","volume":"8","author":"Hirabayashi K","year":"1983","unstructured":"Hirabayashi K, Watanabe K, Wakano K, Suzuki N, Satomi K, Ishii Y. Expansive open-door laminoplasty for cervical spinal stenotic myelopathy. Spine (Phila Pa 1976). 1983;8(7):693\u2013699."},{"issue":"3","key":"b6","series-title":"Neurosurgery","first-page":"770","article-title":"Adjacent segment disease: an uncommon complication after cervical expansile laminoplasty: case report","volume":"53","author":"Wang MY","year":"2003","unstructured":"Wang MY, Green BA, Vitarbo E, Levi AD. Adjacent segment disease: an uncommon complication after cervical expansile laminoplasty: case report. Neurosurgery. 2003;53(3):770\u2013773."},{"issue":"6","key":"b7","series-title":"Surg Neurol","first-page":"487","article-title":"Clinical outcomes following cervical laminoplasty for 204 patients with cervical spondylotic myelopathy","volume":"62","author":"Wang MY","year":"2004","unstructured":"Wang MY, Shah S, Green BA. Clinical outcomes following cervical laminoplasty for 204 patients with cervical spondylotic myelopathy. Surg Neurol. 2004;62(6):487\u2013493."},{"issue":"2","key":"b8","series-title":"Neurosurgery","first-page":"264","article-title":"A prospective, randomized trial comparing expansile cervical laminoplasty and cervical laminectomy and fusion for multilevel cervical myelopathy","volume":"70","author":"Manzano GR","year":"2012","unstructured":"Manzano GR, Casella G, Wang MY, Vanni S, Levi AD. A prospective, randomized trial comparing expansile cervical laminoplasty and cervical laminectomy and fusion for multilevel cervical myelopathy. Neurosurgery. 2012;70(2):264\u2013277."},{"issue":"5","key":"b9","series-title":"Spine Surg Relat Res","first-page":"460","article-title":"Comparative utilization of laminoplasty in the United States and Japan","volume":"6","author":"Waddell WH","year":"2022","unstructured":"Waddell WH, Weisenthal BM, Golinvaux N,  Comparative utilization of laminoplasty in the United States and Japan. Spine Surg Relat Res. 2022;6(5):460\u2013463."},{"issue":"10","key":"b10","series-title":"JAMA","first-page":"942","article-title":"Effect of ventral vs dorsal spinal surgery on patient-reported physical functioning in patients with cervical spondylotic myelopathy: a randomized clinical trial","volume":"325","author":"Ghogawala Z","year":"2021","unstructured":"Ghogawala Z, Terrin N, Dunbar MR,  Effect of ventral vs dorsal spinal surgery on patient-reported physical functioning in patients with cervical spondylotic myelopathy: a randomized clinical trial. JAMA. 2021;325(10):942\u2013951."},{"issue":"12","key":"b11","series-title":"Spine (Phila Pa 1976)","first-page":"1330","article-title":"Laminoplasty versus laminectomy and fusion for multilevel cervical myelopathy: an independent matched cohort analysis","volume":"26","author":"Heller JG","year":"2001","unstructured":"Heller JG, Edwards CC II, Murakami H, Rodts GE. Laminoplasty versus laminectomy and fusion for multilevel cervical myelopathy: an independent matched cohort analysis. Spine (Phila Pa 1976). 2001;26(12):1330\u20131336."},{"issue":"1","key":"b12","series-title":"J Neurosurg Spine","first-page":"49","article-title":"Simulated bundled payments for four common surgical approaches to treat degenerative cervical myelopathy: a consideration to break the clinical equipoise","volume":"37","author":"Jain N","year":"2022","unstructured":"Jain N, Sharma M, Wang D, Ugiliweneza B, Drazin D, Boakye M. Simulated bundled payments for four common surgical approaches to treat degenerative cervical myelopathy: a consideration to break the clinical equipoise. J Neurosurg Spine. 2022;37(1):49\u201356."},{"issue":"5","key":"b13","series-title":"Quant Imaging Med Surg","first-page":"1888","article-title":"Modified axial computed tomography classification of cervical ossification of the posterior longitudinal ligament: selecting the optimal operating procedure and enhancing the accuracy of prognosis","volume":"11","author":"Shao T","year":"2021","unstructured":"Shao T, Gu J, Zhu Y,  Modified axial computed tomography classification of cervical ossification of the posterior longitudinal ligament: selecting the optimal operating procedure and enhancing the accuracy of prognosis. Quant Imaging Med Surg. 2021;11(5):1888\u20131898."},{"issue":"4","key":"b14","series-title":"J Neurosurg Spine","first-page":"592","article-title":"Risk factors and preventive measures for C5 palsy after cervical open-door laminoplasty","volume":"32","author":"Nakajima H","year":"2020","unstructured":"Nakajima H, Kuroda H, Watanabe S, Honjoh K, Matsumine A. Risk factors and preventive measures for C5 palsy after cervical open-door laminoplasty. J Neurosurg Spine. 2020;32(4):592\u2013599."},{"issue":"3","key":"b15","series-title":"J Bone Joint Surg Br","first-page":"393","article-title":"C5 palsy after cervical laminoplasty: a iamienter study","volume":"92","author":"Imagama S","year":"2010","unstructured":"Imagama S, Matsuyama Y, Yukawa Y,  C5 palsy after cervical laminoplasty: a iamienter study. J Bone Joint Surg Br. 2010;92(3):393\u2013400."},{"issue":"45","key":"b16","series-title":"Medicine (Baltimore)","first-page":"e8560","article-title":"Incidence of C5 nerve root palsy after cervical surgery: a meta-analysis for last decade","volume":"96","author":"Wang T","year":"2017","unstructured":"Wang T, Wang H, Liu S, Ding WY. Incidence of C5 nerve root palsy after cervical surgery: a meta-analysis for last decade. Medicine (Baltimore). 2017;96(45):e8560."},{"issue":"1","key":"b17","series-title":"Turk Neurosurg","first-page":"110","article-title":"Preoperatively, which parameter allows us to predict the C5 palsy after cervical open-door laminoplasty?","volume":"33","author":"Uzunoglu I","year":"2023","unstructured":"Uzunoglu I, Gurkan G, Cingoz ID,  Preoperatively, which parameter allows us to predict the C5 palsy after cervical open-door laminoplasty? Turk Neurosurg. 2023;33(1):110\u2013117."},{"issue":"11","key":"b18","series-title":"Ann Transl Med","first-page":"634","article-title":"Risk factors for C5 palsy following the posterior spinal process-splitting laminoplasty for cervical ossification of the posterior longitudinal ligament: a case control study","volume":"10","author":"Li N","year":"2022","unstructured":"Li N, Zhao K, An Y, Yan K, Liu B, He D. Risk factors for C5 palsy following the posterior spinal process-splitting laminoplasty for cervical ossification of the posterior longitudinal ligament: a case control study. Ann Transl Med. 2022;10(11):634."},{"issue":"4","key":"b19","series-title":"J Neurosurg Spine","first-page":"457","article-title":"Defining postoperative C5 palsy and recovery: a systematic review","volume":"38","author":"Deshpande N","year":"2022","unstructured":"Deshpande N, Stino AM, Smith BW,  Defining postoperative C5 palsy and recovery: a systematic review. 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Analysis of the risk factors for C5 nerve palsy after cervical posterior open-door laminoplasty for patients with cervical spondylotic myelopathy-from the perspective of cervical sagittal parameters. World Neurosurg. 2022;165:e169\u2013e174."},{"issue":"7","key":"b22","series-title":"J Biomech Eng","first-page":"071006","article-title":"Biomechanical effects on cervical spinal cord and nerve root following laminoplasty for ossification of the posterior longitudinal ligament in the cervical spine: a comparison between open-door and double-door laminoplasty using finite element analysis","volume":"140","author":"Khuyagbaatar B","year":"2018","unstructured":"Khuyagbaatar B, Kim K, Purevsuren T, Lee SH, Kim YH. Biomechanical effects on cervical spinal cord and nerve root following laminoplasty for ossification of the posterior longitudinal ligament in the cervical spine: a comparison between open-door and double-door laminoplasty using finite element analysis. 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