title: Cervical open-door laminoplasty technique with simple sutures and bone grafts: a single institutional study with 30 consecutive cases.
abstract: BACKGROUND
  Expansive open-door laminoplasty is widely accepted as a reliable procedure for cervical myelopathy. However, one acknowledged complication is spring-back complication or closure of the door which may result in restenosis of cervical canal and neurologic deterioration. The study aimed for addressing our cervical open-door laminoplasty technique with sutures and bone grafts and subsequently the follow-up outcomes.
  
  
  METHODS
  Thirty consecutive patients who underwent open-door laminoplasty with the novel technique were included and followed for minimum 5 years from Jan 2006 to Dec 2007. Anteroposterior diameter (APD) of the vertebral canal of C4 was measured in lateral cervical radiographs. Neurologic scenarios were noted using the Japanese Orthopaedic Association (JOA) scores.
  
  
  RESULTS
  Twenty-five males (83.3%) and five (16.7%) females with an average follow-up of 68 months were enrolled. The preoperative APD was 13.22 mm (±1.15), whereas the postoperative APD increased to 31.23 mm (±2.43) with an expansion ratio of 136.23% (P < 0.05). The JOA score increased from 8.5 preoperatively to 13.45 postoperatively with a recovery rate of 58.2% (P < 0.05). The elevated laminas were maintained open during the follow-up period.
  
  
  CONCLUSIONS
  Our technique with sutures and bone graft for laminoplasty is a simple and efficient method for maintaining the decompression of cervical canal and neurologic improvement.
authors: Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China. lixinkui@fmmu.edu.cn.
authors: Xin-Kui
authors: XK
authors: Li
authors: Aero Space Medical School, Fourth Military Medical University, Xi'an, China. 18191760323@189.cn.
authors: Xu
authors: X
authors: Liu
authors: Aero Space Medical School, Fourth Military Medical University, Xi'an, China. 3052010128@student.fmmu.edu.cn.
authors: Lu
authors: L
authors: Che
authors: Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China. nansetian@163.com.
authors: Chi-Jiao
authors: CJ
authors: Ma
authors: Department of Orthopaedics and Traumatology, University of Hong Kong, Pokfulam, Hong Kong, SAR, China. dsamartzis@msn.com.
authors: Dino
authors: D
authors: Samartzis
authors: Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China. hqwang@fmmu.edu.cn.
authors: Hai-Qiang
authors: HQ
authors: Wang
mesh_terms: D000328:Adult; D000368:Aged; D016025:Bone Transplantation; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D065406:Laminoplasty / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D013536:Suture Techniques; D016896:Treatment Outcome
references: J Spinal Disord. 1999 Oct;12(5):386-91
references: 10549701
references: Br J Neurosurg. 1999 Aug;13(4):405-8
references: 10616569
references: Spine (Phila Pa 1976). 2001 Sep 1;26(17):1890-4; discussion 1895
references: 11568701
references: Keio J Med. 2001 Sep;50(3):142-51
references: 11594036
references: Spine J. 2001 Jan-Feb;1(1):26-30
references: 14588365
references: J Neurosurg Spine. 2004 Sep;1(2):168-74
references: 15347002
references: Spine (Phila Pa 1976). 1981 Jul-Aug;6(4):354-64
references: 6792717
references: Spine (Phila Pa 1976). 1983 Oct;8(7):693-9
references: 6420895
references: Spine (Phila Pa 1976). 1985 Oct;10(8):729-36
references: 3909451
references: Spine (Phila Pa 1976). 1988 Jul;13(7):870-6
references: 3143157
references: Spine (Phila Pa 1976). 1994 Mar 1;19(5):507-10
references: 8184342
references: Int Orthop. 1995;19(2):116-21
references: 7649681
references: Spine (Phila Pa 1976). 1996 Feb 15;21(4):474-83; discussion 484
references: 8658252
references: J Neurosurg. 1997 Jan;86(1):64-8
references: 8988083
references: Spinal Cord. 1997 Oct;35(10):674-9
references: 9347596
references: J Bone Joint Surg Br. 1998 Nov;80(6):1005-8
references: 9853493
references: Clin Orthop Relat Res. 1999 Feb;(359):35-48
references: 10078127
references: Spine (Phila Pa 1976). 1999 Jul 1;24(13):1363-70
references: 10404580
references: J Mt Sinai Hosp N Y. 1956 May-Jun;23(3):283-92
references: 13320096
references: Neurosurgery. 2005 Oct;57(4 Suppl):348-56; discussion 348-56
references: 16234684
references: J Neurosurg Spine. 2005 Sep;3(3):198-204
references: 16235702
references: Biometrics. 2006 Dec;62(4):1190-6
references: 17156294
references: Spine (Phila Pa 1976). 2006 Dec 15;31(26):2998-3005
references: 17172996
references: J Spinal Disord Tech. 2007 Oct;20(7):492-8
references: 17912125
references: J Spinal Disord Tech. 2008 Aug;21(6):387-92
references: 18679091
references: Spine J. 2011 Sep;11(9):832-8
references: 21890423
references: Comput Aided Surg. 2013;18(5-6):201-4
references: 23895435