Table 2.

Lateral Radiograph Results

Quantitative Relationships of Elbow Anatomic Structures to Landmarks and Reference Lines on Elbow Lateral Radiographs
Structure Relationship	Distance ± standard deviation (mm)
Humeral Attachment of UCL to:
Coronoid attachment (anterior bundle)	27.1 ± 3.7
Olecranon attachment (posterior bundle)	23.4 ± 4.0
Anterior humeral line	9.1 ± 2.0
Ulna Attachment of UCL to:
Tip of coronoid	19.3 ± 6.0
Radial axis line	12.5 ± 3.5
Olecranon Attachment of UCL to:
Ulna attachment (transverse bundle)	25.0 ± 3.6
Radial axis line	21.8 ± 5.6
Humeral Attachment of LUCL to:
Supinator crest attachment	45.4 ± 4.3
Anterior humeral line	8.9 ± 2.7
Supinator Crest Attachment of LUCL to:
Radial axis line	14.4 ± 2.2
Annular Ligament Dorsal Attachment to:
Annular ligament volar attachment	11.7 ± 2.1
Tip of coronoid process	23.5 ± 2.4
Radial axis line	15.1 ± 2.4
Annular Ligament Volar Attachment to:
Tip of coronoid process	16.7 ± 4.9
Radial axis line	6.2 ± 3.3
Biceps Insertion to:
Center of radial head	34.1 ± 4.4
Radial axis line	6.5 ± 2.4
Triceps Insertion to:
Tip of olecranon	6.1 ± 1.7
Radial axis line	22.9 ± 5.5