An Anatomic, Radiographic, and Biomechanical Assessment of Extrapedicular Screw Fixation in the Thoracic Spine

Overview

Journal Spine (Phila Pa 1976)

Specialty Orthopedics

Date 1993 Sep 15

PMID 8235850

Citations 22

Authors

M Dvorak

S MacDonald

K R Gurr

S I Bailey

R G Haddad

Affiliations

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Abstract

This study performed a thorough review of the pertinent thoracic spine anatomy to determine the appropriate landmarks for extrapedicular screw placement and indentified the anatomic structures at risk; assessed the safety and accuracy of the newly proposed screw insertion technique; determined the stability and strength of this new screw position through biomechanical testing; and analyzed the stability of this extrapedicular screw location with respect to bone mineral density of the vertebra.

Citing Articles

Feasibility and Safety of the C1 "Zero Angle" Screw: A Novel "In-Out-In" Technique for Atlantoaxial Dislocation.

Chen Z, Huang X, Zou X, Lian P, Liu G, Chen J Orthop Surg. 2024; 17(2):437-445.

PMID: 39628069 PMC: 11787991. DOI: 10.1111/os.14309.

Novel Screw Placement Method for Extremely Small Lumbar Pedicles in Scoliosis.

Hwang C, Lee J, Lee D, Cho J, Lee C, Lee M J Clin Med. 2024; 13(4).

PMID: 38398428 PMC: 10888630. DOI: 10.3390/jcm13041115.

The Child's Age and the Size of the Curvature Do Not Affect the Accuracy of Screw Placement with the Free-Hand Technique in Spinal Deformities in Children and Adolescents.

Grabala P, Helenius I, Kowalski P, Grabala M, Zacha S, Deszczynski J J Clin Med. 2023; 12(12).

PMID: 37373646 PMC: 10299159. DOI: 10.3390/jcm12123954.

Freehand Juxtapedicular Screws Placed in the Apical Concavity of Adult Idiopathic Scoliosis Patients: Technique, Computed Tomography Confirmation, and Radiographic Results.

Schupper A, Lin J, Osorio J, Lee N, Steinberger J, Lombardi J Neurospine. 2023; 19(4):1116-1121.

PMID: 36597645 PMC: 9816604. DOI: 10.14245/ns.2244798.399.

Could screw/hook insertion at the apical vertebrae with rib head dislocation effectively retract the corresponding rib head from spinal canal in dystrophic scoliosis secondary to type 1 neurofibromatosis?.

Li S, Mao S, Ma Y, Shi B, Liu Z, Zhu Z BMC Musculoskelet Disord. 2022; 23(1):285.

PMID: 35337307 PMC: 8953135. DOI: 10.1186/s12891-022-05248-2.