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A PET/CT-based Morphometric Study of Spinal Canal in Korean Young Adults: Anteroposterior Diameter from Cervical Vertebra to Sacrum

 Moo Sung Kang  ;  Jeong Yoon Park  ;  Dong Kyu Chin  ;  Kyung Hyun Kim  ;  Sung Uk Kuh  ;  Keun Su Kim  ;  Yong Eun Cho 
 Korean Journal of Spine (대한척추신경외과학회지), Vol.9(3) : 165-169, 2012 
Journal Title
 Korean Journal of Spine  (대한척추신경외과학회지) 
Issue Date
Objective: To establish normative data for spinal canal AP diameter from cervical vertebra to sacrum in the Korean young and to assess the exposed spinal canal after laminectomy which was related with restenosis by post-laminectomy membrane formation. Methods: From PET/CT, axial bone-window CT of 83 young adults (20-29 years) were obtained, and we measured AP diameters of C3, C5, C7, T1, T4, T8, T12, L1, L3, L5 and S1. We also measured exposed AP diameter of C3, C5, C7, T1 and T2 above imaginary line for laminectomy. Results: The shortest mean AP diameter was at C5 (14.5±1.5mm), and the longest was at S1 (17.4±2.3mm). AP diameter increased from C3 (14.6±1.1mm) to T1 (16.1±1.2mm) at cervical spine. In the thoracic spine, the diameter gradually decreased from T1 (16.1±1.2mm) to T8 (14.6±1.3mm) and increased to T12 (16.7±1.2mm). The diameter decreased from L1 (16.7± 1.3mm) to L3 (15.7±1.9mm), and it increased to S1 (17.4±2.3mm) at lumbar spine. Exposed AP diameter above imaginary line for laminectomy was the longest at C3 (4.8±1.2mm) and gradually decreased to T1 (3.3±0.9mm) and T2 (0mm). Conclusions: Spinal AP diameter was the shortest in the mid-cervical area (C5) and increased to the upper thoracic area. From the upper thoracic vertebra, the diameter gradually decreased to the mid-thoracic vertebra (T8) and then increased to the lower thoracic vertebra. Lumbar vertebra also was similar with thoracic vertebra. Below T2, there was no exposed dural sac after laminectomy. This means that restenosis by post-laminectomy membrane formation can occur above T1.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
구성욱(Kuh, Sung Uk) ORCID logo https://orcid.org/0000-0003-2566-3209
김경현(Kim, Kyung Hyun)
김근수(Kim, Keun Su) ORCID logo https://orcid.org/0000-0002-3384-5638
박정윤(Park, Jeong Yoon) ORCID logo https://orcid.org/0000-0002-3728-7784
조용은(Cho, Yong Eun) ORCID logo https://orcid.org/0000-0001-9815-2720
진동규(Chin, Dong Kyu) ORCID logo https://orcid.org/0000-0002-9835-9294
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