1. Matsunaga S, Sakou T, Hayashi K, et al. Trauma-induced myelopathy in patients with ossification of the posterior longitudinal ligament. J Neurosurg 2002 97(2 Suppl):172-5.
2. Abe H, Tsuru M, Ito T, et al. Anterior decompression for ossification of the posterior longitudinal ligament of the cervical spine. J Neurosurg 1981 55:108-16.
3. Kojima T, Waga S, Kubo Y, et al. Anterior cervical vertebrectomy and interbody fusion for multi-level spondylosis and ossification of the posterior longitudinal ligament. Neurosurgery 1989 24:864-72.
4. Iwasaki M, Kawaguchi Y, Kimura T, et al. Long-term results of expansive laminoplasty for ossification of the posterior longitudinal ligament of the cervical spine: more than 10 years follow up. J Neurosurg 2002 96(2 Suppl):180-9.
5. Iwasaki M, Okuda S, Miyauchi A, et al. Surgical strategy for cervical myelopathy due to ossification of the posterior longitudinal ligament: Part 1: Clinical results and limitations of laminoplasty. Spine (Phila Pa 1976) 2007 32:647-53.
6. Tani T, Ushida T, Ishida K, et al. Relative safety of anterior microsurgical decompression versus laminoplasty for cervical myelopathy with a massive ossified posterior longitudinal ligament. Spine (Phila Pa 1976) 2002 27:2491-8.
7. Chiba K, Yamamoto I, Hirabayashi H, et al. Multicenter study investigating the postoperative progression of ossification of the posterior longitudinal ligament in the cervical spine: a new computer-assisted measurement. J Neurosurg Spine 2005 3:17-23.
8. Hirabayashi K, Miyakawa J, Satomi K, et al. Operative results and postoperative progression of ossification among patients with ossification of cervical posterior longitudinal ligament. Spine (Phila Pa 1976) 1981 6:354-64.
9. Lee SH, Kim KT, Lee JH, et al. 540° Cervical realignment procedure for extensive cervical OPLL with kyphotic deformity. Spine (Phila Pa 1976) 2016 41:1876-83.
11. Tsuyama N. Ossification of the posterior longitudinal ligament of the spine. Clin Orthop Relat Res 1984 (184):71-84.
12. Tetreault L, Nakashima H, Kato S, et al. A systematic review of classification systems for cervical ossification of the posterior longitudinal ligament. Global Spine J 2019 9:85-103.
13. Fujiyoshi T, Yamazaki M, Kawabe J, et al. A new concept for making decisions regarding the surgical approach for cervical ossification of the posterior longitudinal ligament: the K-line. Spine (Phila Pa 1976) 2008 33:E990-3.
14. Nagashima H, Nanjo Y, Tanida A, et al. Influence of spinous process spacers on surgical outcome of laminoplasty for OPLL. Orthopedics 2013 36:e494-500.
15. Ito K, Yukawa Y, Ito K, et al. Dynamic changes in the spinal cord cross-sectional area in patients with myelopathy due to cervical ossification of posterior longitudinal ligament. Spine J 2015 15:461-6.
16. Matsuyama Y, Kawakami N, Yanase M, et al. Cervical myelopathy due to OPLL: clinical evaluation by MRI and intraoperative spinal sonography. J Spinal Disord Tech 2004 17:401-4.
17. Epstein NE, Hollingsworth R. Anterior cervical micro-dural repair of cerebrospinal fluid fistula after surgery for ossification of the posterior longitudinal ligament. Technical note. Surg Neurol 1999 52:511-4.
18. Hida K, Iwasaki Y, Koyanagi I, et al. Bone window computed tomography for detection of dural defect associated with cervical ossified posterior longitudinal ligament. Neurol Med Chir (Tokyo) 1997 37:173-5.
19. Mizuno J, Nakagawa H, Matsuo N, et al. Dural ossification associated with cervical ossification of the posterior longitudinal ligament: frequency of dural ossification and comparison of neuroimaging modalities in ability to identify the disease. J Neurosurg Spine 2005 2:425-30.
21. Epstein NE. Identification of ossification of the posterior longitudinal ligament extending through the dura on preoperative computed tomographic examinations of the cervical spine. Spine (Phila Pa 1976) 2001 26:182-6.
24. Sumi M, Osamu K, Satoru S, et al. Radiological analysis of cervical spondylotic myelopathy. Rinsho Seikei Geka 1998 33:1277. -86. (Japanese).
27. Kawaguchi Y, Seki S, Hori T, et al. Characteristics of ossified lesions in the upper cervical spine associated with ossification of the posterior longitudinal ligament in the lower cervical spine. J Bone Joint Surg Am 2008 90:748-53.
28. Hirai T, Kawabata S, Enomoto M, et al. Presence of anterior compression of the spinal cord after laminoplasty inhibits upper extremity motor recovery in patients with cervical spondylotic myelopathy. Spine (Phila Pa 1976) 2012 37:377-84.
29. Hirai T, Okawa A, Arai Y, et al. Middle-term results of a prospective comparative study of anterior decompression with fusion and posterior decompression with laminoplasty for the treatment of cervical spondylotic myelopathy. Spine (Phila Pa 1976) 2011 36:1940-7.
30. Subramaniam V, Chamberlain RH, Theodore N, et al. Biomechanical effects of laminoplasty versus laminectomy: stenosis and stability. Spine (Phila Pa 1976) 2009 34:E573-8.
31. Taniyama T, Hirai T, Yamada T, et al. Modified K-line in magnetic resonance imaging predicts insufficient decompression of cervical laminoplasty. Spine (Phila Pa 1976) 2013 38:496-501.
32. Taniyama T, Hirai T, Yoshii T, et al. Modified K-line in magnetic resonance imaging predicts clinical outcome in patients with nonlordotic alignment after laminoplasty for cervical spondylotic myelopathy. Spine (Phila Pa 1976) 2014 39:E1261-8.
33. Vialle R, Levassor N, Rillardon L, et al. Radiographic analysis of the sagittal alignment and balance of the spine in asymptomatic subjects. J Bone Joint Surg Am 2005 87:260-7.
34. Smith JS, Singh M, Klineberg E, et al. Surgical treatment of pathological loss of lumbar lordosis (flatback) in patients with normal sagittal vertical axis achieves similar clinical improvement as surgical treatment of elevated sagittal vertical axis: clinical article. J Neurosurg Spine 2014 21:160-70.
36. Hyun SJ, Kim KJ, Jahng TA, et al. Relationship between T1 slope and cervical alignment following multilevel posterior cervical fusion surgery: impact of T1 slope minus cervical lordosis. Spine (Phila Pa 1976) 2016 41:E396-402.
37. Glassman SD, Berven S, Bridwell K, et al. Correlation of radiographic parameters and clinical symptoms in adult scoliosis. Spine (Phila Pa 1976) 2005 30:682-8.
38. Glassman SD, Bridwell K, Dimar JR, et al. The impact of positive sagittal balance in adult spinal deformity. Spine (Phila Pa 1976) 2005 30:2024-9.
39. Kim YJ, Bridwell KH, Lenke LG, et al. Results of lumbar pedicle subtraction osteotomies for fixed sagittal imbalance: a minimum 5-year follow-up study. Spine (Phila Pa 1976) 2007 32:2189-97.
40. Lafage V, Ames C, Schwab F, et al. Changes in thoracic kyphosis negatively impact sagittal alignment after lumbar pedicle subtraction osteotomy: a comprehensive radiographic analysis. Spine (Phila Pa 1976) 2012 37:E180-7.
41. Lowe T, Berven SH, Schwab FJ, et al. The SRS classification for adult spinal deformity: building on the King/Moe and Lenke classification systems. Spine (Phila Pa 1976) 2006 31(19 Suppl):S119-25.
42. Smith JS, Bess S, Shaffrey CI, et al. Dynamic changes of the pelvis and spine are key to predicting postoperative sagittal alignment after pedicle subtraction osteotomy: a critical analysis of preoperative planning techniques. Spine (Phila Pa 1976) 2012 37:845-53.
43. Smith JS, Klineberg E, Schwab F, et al. Change in classification grade by the SRS-Schwab Adult Spinal Deformity Classification predicts impact on health-related quality of life measures: prospective analysis of operative and nonoperative treatment. Spine (Phila Pa 1976) 2013 38:1663-71.
45. Oshima Y, Takeshita K, Taniguchi Y, et al. Effect of preoperative sagittal balance on cervical laminoplasty outcomes. Spine (Phila Pa 1976) 2016 41:E1265-70.
47. Weng C, Wang J, Tuchman A, et al. Influence of T1 slope on the cervical sagittal balance in degenerative cervical spine: an analysis using kinematic MRI. Spine (Phila Pa 1976) 2016 41:185-90.
48. Lee SH, Kim KT, Seo EM, et al. The influence of thoracic inlet alignment on the craniocervical sagittal balance in asymptomatic adults. J Spinal Disord Tech 2012 25:E41-7.
49. Lee SH, Son ES, Seo EM, et al. Factors determining cervical spine sagittal balance in asymptomatic adults: correlation with spinopelvic balance and thoracic inlet alignment. Spine J 2015 15:705-12.
50. Knott PT, Mardjetko SM, Techy F. The use of the T1 sagittal angle in predicting overall sagittal balance of the spine. Spine J 2010 10:994-8.
51. Dalbayrak S, Yaman O, Firidin MN, et al. The contribution of cervical dynamic magnetic resonance imaging to the surgical treatment of cervical spondylotic myelopathy. Turk Neurosurg 2015 25:36-42.
52. Gotkine M, Abraham A, Drory VE, et al. Dynamic MRI testing of the cervical spine has prognostic significance in patients with progressive upper-limb distal weakness and atrophy. J Neurol Sci 2014 345:168-71.
54. Kawaguchi Y, Kanamori M, Ishihara H, et al. Progression of ossification of the posterior longitudinal ligament following en bloc cervical laminoplasty. J Bone Joint Surg Am 2001 83:1798-802.
55. Fargen KM, Cox JB, Hoh DJ. Does ossification of the posterior longitudinal ligament progress after laminoplasty? Radiographic and clinical evidence of ossification of the posterior longitudinal ligament lesion growth and the risk factors for late neurologic deterioration. J Neurosurg Spine 2012 17:512-24.
56. Fujimori T, Iwasaki M, Nagamoto Y, et al. Three-dimensional measurement of growth of ossification of the posterior longitudinal ligament. J Neurosurg Spine 2012 16:289-95.
57. Fujiyoshi T, Yamazaki M, Okawa A, et al. Static versus dynamic factors for the development of myelopathy in patients with cervical ossification of the posterior longitudinal ligament. J Clin Neurosci 2010 17:320-4.
58. Lee DH, Joo YS, Hwang CJ, et al. A novel technique to correct kyphosis in cervical myelopathy due to continuous-type ossification of the posterior longitudinal ligament. J Neurosurg Spine 2017 26:325-30.