Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Translaminar facet screw placement: an anatomic study

J Lu1, N A Ebraheim, R A Yeasting

  • 1Department of Orthopaedic Surgery, Medical College of Ohio, Toledo, USA.

American Journal of Orthopedics (Belle Mead, N.J.)
|September 10, 1998
PubMed
Summary

This study measured lumbar spine anatomy for translaminar facet screw fixation. Screw path length and angles vary by level, guiding optimal screw placement for spinal fusion.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Solution structure of cytochrome b(5) mutant (E44/48/56A/D60A) and its interaction with cytochrome c.

European journal of biochemistry·2001
Same author

[Changes of nitric oxide synthase in hypoxic pulmonary hypertension and the effect of L-arg and L-NAME on pulmonary circulation].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2001
Same author

Clinical study on reservation of part of stomach for patients with cardiac cancer of the gastric stump.

Chinese medical journal·2001
Same author

Localization of the K(+)-Cl(-) cotransporter, KCC3, in the central and peripheral nervous systems: expression in the choroid plexus, large neurons and white matter tracts.

Neuroscience·2001
Same author

[Construction of a human factor VIII gene-containing plasmid and its expression in Cos-7 cells].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2001
Same author

Inhibition of N-nitrosomethylbenzylamine-induced tumorigenesis in the rat esophagus by dietary freeze-dried strawberries.

Carcinogenesis·2001

Area of Science:

  • Spinal Anatomy
  • Orthopedic Surgery
  • Biomechanical Engineering

Background:

  • Translaminar facet screw fixation is a surgical technique used in spinal fusion.
  • Accurate anatomic measurements are crucial for successful screw placement and patient outcomes.
  • Understanding regional variations in lumbar spine anatomy is essential for surgical planning.

Purpose of the Study:

  • To measure key anatomic parameters in the lumbar spine relevant to translaminar facet screw fixation.
  • To provide data to guide the optimal placement and trajectory of translaminar facet screws from L1 to L5.
  • To determine the ideal screw length, diameter, and angulation for safe and effective fixation.

Main Methods:

  • Anatomic measurements were performed on 30 dried lumbar spines (L1-L5).
  • Parameters measured included screw path length, caudal and lateral angles, and superior/inferior lamina border thickness.
  • Statistical analysis was used to evaluate variations across lumbar levels.

Main Results:

  • Screw path length and lateral angles increased from L1-2 to L5-S1 (41-54 mm, 39-60 degrees).
  • Caudal angles decreased from L1-2 to L5-S1 (60-38 degrees).
  • Lamina thickness varied, with superior borders thinner (1.3-2.0 mm) and inferior borders thicker (6.7-7.8 mm).

Conclusions:

  • Translaminar facet screws of specific lengths (40-60 mm) and diameters (4.5 mm) are recommended.
  • Optimal insertion angles vary by lumbar level, with lateral angles (40-55 degrees) and caudal angles (35-60 degrees) specified.
  • These measurements provide critical guidance for surgeons performing translaminar facet screw fixation in the lumbar spine.

Related Experiment Videos