Related Experiment Video
Updated: Feb 7, 2026
Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
Published on: August 10, 2017
Traumatic Unilateral L3-4 Jumped Facet Treated with Open Reduction and Short Segment Fusion
Evan Rhea1, Gazanfar Rahmathulla2
1Department of Orthopedic Surgery, University of Florida College of Medicine, Jacksonville, Florida, USA.
Background:
Facet dislocations, or jumped facets, are part of a spectrum of flexion-distraction spine injuries. Bilateral and unilateral facet dislocations are commonly seen in the cervical spine. Traumatic jumped facets in the lumbar spine are rare injuries, and most involve the lumbosacral junction. Lumbar facet subluxations occur commonly in young patients owing to flexion-distraction forces on the lumbar spine at the time of injury combined with ligamentous laxity that exists in young patients.
Case Description:
A 24-year-old man presented with a unilateral right facet dislocation at L3-4 with anterolisthesis and canal stenosis after a motor vehicle accident.
Conclusions:
Following anatomic reduction, unilateral jumped facets can be effectively treated with instrumented stabilization. This report provides evidence for the durability of short segment arthrodesis in select cases of a rare lumbar facet subluxation.
More Related Videos
Related Concept Videos
01:20Amides to Amines: LiAlH4 Reduction
Amide reduction requires two equivalents of the reducing agent, acting as a source of hydride ions. As shown in the figure, the reaction is initiated with a nucleophilic attack by the hydride ion at the carbonyl carbon to form a tetrahedral intermediate.
00:55Nitriles to Amines: LiAlH4 Reduction
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
01:19Acid Halides to Alcohols: LiAlH4 Reduction
The mechanism proceeds in three steps. First, the nucleophilic hydride ion attacks the carbonyl carbon of the acid halide to form a tetrahedral intermediate. Next, the carbonyl group is re-formed, and the halide ion departs as a leaving group, generating an aldehyde. A second nucleophilic attack by the hydride yields an alkoxide ion, which, upon protonation, gives a primary alcohol as...
02:45Nuclear Fusion
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
01:16Hydraulic Jump: Problem Solving
01:29Hydraulic Jump