Applied Anatomic Study On Landmark Of Anterior Decompression And Blood Supply In The Subaxial Cervical Vertebrae

Objective: The primary purposes of the current study are to identify position relation among dural sac, cervical nerve root, vertebral artery and longus colli muscle, uncinate process, foramen transversarium, and provide more scientific landmark for safely efficiently decompressing within limited operating field in cervical anterior decompression, and to improve operating technique, and reduce hemorrhage in operating field operation through illuminating the feature of blood supply in cervical vertebrae.Methods: Some data were observed and measured at C3-C7 of 15 adult cadaveric specimens perfused with red latex: medial border of longus colli muscle-median sagittal plane distance(MLPD), inter-medial border of the longus colli muscle distance(MLD), anterior crus of uncinate process-median sagittal plane distance(AUPD), anterior crus of uncinate process-medial border of longus colli muscle distance(AULD), anterior crus of uncinate process-medial border of foramen transversarium distance(AUTD), inter-anterior crus of uncinate process distance(AUD), dural sac width(DSW), lateral border of dural sac-median sagittal plane distance, posterior crus of uncinate process-median sagittal plane distance(PUPD), inter-posterior crus of uncinate process distance(PUD), and the nearest point of uncinate process and nerve root-posterior crus of uncinate process distance(UNPD). In addintion, the origin, course, distribution and anastomosis of anteroposterior blood supply of C3-C7 were also observed. Then, some data were calculated basing on above data: AULD/MLPD, AUTD/AULD, anterior crus of uncinate process-lateral border of dural sac perpendicular distance/posterior crus of uncinate process-lateral border of dural sac distance(AUDD/PUDD), and the nearest...