Publications by authors named "Adolfo Espinoza-Larios"
Background Context: Locking posterior instrumentation in the cervical spine can be attached using 1) pedicle screws, 2) lateral mass screws, or 3) laminar hooks. This order of options is in order of decreasing technical difficulty and decreasing depth of fixation, and is thought to be in order of decreasing stability.
Purpose: We sought to determine whether substantially different biomechanical stability can be achieved in a two-level construct using pedicle screws, lateral mass screws, or laminar hooks.
Study Design: In vitro biomechanical flexibility experiment studying 5 sequential conditions.
Objective: To determine the biomechanical differences among 3 fixation techniques after a simulated hangman's fracture.
Summary Of Background Data: Type II hangman's fractures are often treated surgically with a C2-C3 anterior cervical discectomy, fusion, and plating.
Object: A flexibility experiment using human cadaveric thoracic spine specimens was performed to determine biomechanical differences among thoracolumbar two-screw plate, single-screw plate, and dual-rod systems. A secondary goal was to investigate differences in the ability of the systems to stabilize the spine after a one- or two-level corpectomy.
Methods: The authors evaluated 21 cadaveric spines implanted with a titanium mesh cage and three types of anterior thoracolumbar supplementary instrumentation after one-level thoracic corpectomies.
Object: The authors present a biomechanical analysis of a newly designed bioabsorbable anterior cervical plate (ACP) for the treatment of one-level cervical degenerative disc disease. They studied anterior cervical discectomy and fusion (ACDF) in a human cadaveric model, comparing the stability of the cervical spine after placement of the bioabsorbable fusion plate, a bioabsorbable mesh, and a more traditional metallic ACP.
Methods: Seven human cadaveric specimens underwent a C6-7 fibular graft-assisted ACDF placement.