PMID- 31053937
OWN - NLM
STAT- MEDLINE
DCOM- 20200813
LR  - 20210208
IS  - 1432-0932 (Electronic)
IS  - 0940-6719 (Linking)
VI  - 28
IP  - 10
DP  - 2019 Oct
TI  - A new method for calculating the desired laminoplasty opening size based on the 
      target sagittal canal diameter before single-door cervical laminoplasty.
PG  - 2302-2310
LID - 10.1007/s00586-019-05992-5 [doi]
AB  - PURPOSE: To build a mathematical model which could calculate the desired 
      laminoplasty opening size (LOS) based on the target sagittal canal diameter (SCD) 
      before single-door cervical laminoplasty (SDCL) when taking the effects of 
      surgery drill into consideration. METHODS: The model was based on geometric 
      analysis on deformation of spinal canal; the formula was derived and 
      characterized as: y (mm) = 2 [Formula: see text] x sin(beta/2) = c - d (y is the 
      size of LOS, [Formula: see text] the size of transverse canal diameter, beta the 
      size of laminoplasty opening size, c the size of mini-plate and d the diameter of 
      the drill bit used during the surgery operation). The parameters of pre- and 
      postoperative computed tomography scans of 20 patients who had undergone SDCL 
      were measured by the picture archiving and communication system (PACS) software 
      and a new instrument named as Lei's ruler, respectively. RESULTS: The effects of 
      surgery SDCL were very significant; for each patient, the SCD was enlarged 
      dramatically after the surgery (P < 0.01). The differences between the data 
      obtained by PACS and Lei's ruler were no statistically significant (P > 0.05). 
      According to the derived formula, the 95% confidence intervals of SCD after the 
      surgery were within the range of 14 mm and 14.5 mm. CONCLUSION: Applying the 
      mathematical model and derived formula, the desired LOS could be calculated 
      according to the target SCD which could help the surgeon select an optimum 
      mini-plate before SDCL. At the same time, a new measuring device named Lei's 
      ruler is designed for the convenience of the derived formula. These slides can be 
      retrieved under Electronic Supplementary Material.
FAU - Yang, Xiao-Jiang
AU  - Yang XJ
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Sang, Hong-Xun
AU  - Sang HX
AD  - Department of Orthopaedics, Shenzhen Hospital, Southern Medical University, No. 
      1333, Xinhu Road, Bao'an District, Shenzhen City, 518100, China.
FAU - Liu, Chen-Xin
AU  - Liu CX
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Ma, Zhen-Sheng
AU  - Ma ZS
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Meng, Bing
AU  - Meng B
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Li, Tian-Qing
AU  - Li TQ
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Jiang, Ming-Chun
AU  - Jiang MC
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Liu, Xiao-Zhong
AU  - Liu XZ
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Lei, Wei
AU  - Lei W
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China.
FAU - Zhang, Yang
AU  - Zhang Y
AD  - Department of Orthopaedic Surgery, Xijing Hospital, The Air Force Medical 
      University, No. 127 Changlexi Road, Xincheng District, Xi'an, 710032, Shaanxi, 
      China. zhangyang@fmmu.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20190503
PL  - Germany
TA  - Eur Spine J
JT  - European spine journal : official publication of the European Spine Society, the 
      European Spinal Deformity Society, and the European Section of the Cervical Spine 
      Research Society
JID - 9301980
SB  - IM
MH  - Adult
MH  - Aged
MH  - Cervical Vertebrae/*surgery
MH  - Female
MH  - Humans
MH  - Laminoplasty/*methods
MH  - Male
MH  - Middle Aged
MH  - *Models, Theoretical
OTO - NOTNLM
OT  - Cervical spine
OT  - Laminoplasty opening size
OT  - Sagittal canal diameter
OT  - Single-door cervical laminoplasty
EDAT- 2019/05/06 06:00
MHDA- 2020/08/14 06:00
CRDT- 2019/05/05 06:00
PHST- 2018/10/29 00:00 [received]
PHST- 2019/04/24 00:00 [accepted]
PHST- 2019/03/10 00:00 [revised]
PHST- 2019/05/06 06:00 [pubmed]
PHST- 2020/08/14 06:00 [medline]
PHST- 2019/05/05 06:00 [entrez]
AID - 10.1007/s00586-019-05992-5 [pii]
AID - 10.1007/s00586-019-05992-5 [doi]
PST - ppublish
SO  - Eur Spine J. 2019 Oct;28(10):2302-2310. doi: 10.1007/s00586-019-05992-5. Epub 
      2019 May 3.