Normal Acromioclavicular Joint Space Size on Radiography
Normal acromioclavicular joint space measures less than 2–4 mm side-to-side difference on AP radiography, aiding detection of AC joint injury.
Trauma
14 entries
A
B
Normal Böhler's Angle Size on Radiography and CT
Normal Böhler's angle measures 25–40° on lateral radiography and CT, serving as a key indicator of calcaneal fracture depression and alignment.
C
Normal Cervical Interspinous Distance Size on Radiography, CT, MRI
Normal cervical interspinous distance should be less than 1.5× the mean interspinous distance — a key radiologic marker for ligamentous injury.
Normal Cervical Wedge Compression Fracture Size on X-Ray & CT
Normal cervical wedge compression fracture threshold: posterior-to-anterior vertebral height difference less than 3 mm on lateral radiography and CT.
Normal Coracoclavicular Distance Size on Radiography
Normal coracoclavicular distance on AP radiography measures 11–13 mm, with a side-to-side difference of less than 5 mm indicating ligamentous integrity.
F
Normal Fibular Angle Size on Radiography
Normal fibular angle on AP and mortise ankle radiographs ranges from 43° to 63°, a key measurement for assessing fibular length and ankle stability.
G
Normal Gissane Critical Angle Size on Radiography
Normal Gissane critical angle on lateral radiograph measures 120–145°, a key calcaneal landmark for detecting intra-articular fractures.
H
Normal Harris Line Measurements: Cervical Radiography, CT, MRI
Normal Harris line measurements include basion-odontoid and basion-posterior axial line distances of less than 12 mm on lateral cervical imaging.
Normal Humeral Angle Size on Radiography
Normal humeral angle on lateral elbow radiography measures 72–95°, a key parameter for detecting distal humeral fractures and malalignment.
P
Normal Powers Index Cervical Size: X-Ray, CT & MRI
The normal Powers Index is less than 1 on lateral imaging; values ≥1 indicate atlantooccipital dislocation on X-ray, CT, or MRI.
Normal Prevertebral Soft Tissue Thickness on Radiography
Normal prevertebral soft tissue thickness values on lateral cervical radiography, from C1 to C7, based on Penning 1981 reference data.
Normal Prevertebral Soft Tissue Thickness on Radiography
Normal prevertebral soft tissue thickness in cervical spine flexion on lateral radiography, with average values from C1 to C7 per Penning 1981.
Normal Prevertebral Soft Tissue Thickness on Radiography
Normal prevertebral soft tissue thickness on lateral cervical radiography ranges from 3.2 mm at C2 to 15.1 mm at C6 in neutral position.
S
Normal Scapholunate Angle Size on Radiography
The normal scapholunate angle on lateral wrist radiography measures 30–60°, a key parameter for diagnosing carpal instability and ligamentous injury.
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