The Anatomical Relationship Between the Cervical Nerve Roots, Intervertebral Discs and Bony Cervical Landmark for Posterior Endoscopic Cervical Foraminotomy and Discectomy: A Cadaveric Study
Issued Date
2023-01-01
Resource Type
ISSN
21925682
eISSN
21925690
Scopus ID
2-s2.0-85177454848
Journal Title
Global Spine Journal
Rights Holder(s)
SCOPUS
Bibliographic Citation
Global Spine Journal (2023)
Suggested Citation
Keorochana G., Tantrakansakun C., Suriyonplengsaeng C., Jaipanya P., Lertudomphonwanit T., Leelapattana P., Chanplakorn P., Kraiwattanapong C. The Anatomical Relationship Between the Cervical Nerve Roots, Intervertebral Discs and Bony Cervical Landmark for Posterior Endoscopic Cervical Foraminotomy and Discectomy: A Cadaveric Study. Global Spine Journal (2023). doi:10.1177/21925682231217251 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/91226
Title
The Anatomical Relationship Between the Cervical Nerve Roots, Intervertebral Discs and Bony Cervical Landmark for Posterior Endoscopic Cervical Foraminotomy and Discectomy: A Cadaveric Study
Author's Affiliation
Other Contributor(s)
Abstract
Study Design: Cadaveric anatomical studies. Objective: This study aims to investigate the anatomical relationship between bony landmark “V point”, dural sac, nerve roots, and intervertebral disc for improving operative outcomes and decreasing post-operative complications in posterior endoscopic cervical foraminotomy or discectomy (PECF or PECD). Method: 10 soft adult cadavers were studied. We measured the distance of the V point to the lateral margin of dural sac, V point to the inferior border of intervertebral disc, and the inferior border of cervical nerve root to the inferior border of intervertebral disc. Then we calculated the mean of distance from V point to the inferior border of cervical nerve root. Result: The mean distance from the V point to the lateral margin of dural sac from C3/4 to C7/T1 ranged from 3.1 ± 1.38 mm to 3.37 ± 1.46 mm. The mean distances from V point to the inferior border of intervertebral disc from C3/4 to C7/T1 were.19 ± 1.16 mm at C3/4,.45 ± 1.23 mm at C4/5,.43 ± 1.01 at C5/6, −.43 ± 1.86 mm at C6/7 and −1.5 ± 1.2 mm at C7/T1. The mean distance between V point and the inferior border of cervical nerve root from C3/4 to C7/T1 showed all positive value, ranging from.06 ± 1.18 mm to 4.45 ± 2.57 mm, increasing caudally. Conclusion: In performing PECF or PECD, a 3-4 mm radius of bone removal should be enough for exposure and neural decompression at C3/4 to C5/6. At C6/7 and C7/T1 a more extensive bone cut of more than 4 mm is recommended, especially in cranial direction.