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XR Humerus

XRNo contrastMSK
Indications
  • Upper arm pain/trauma
  • Suspected humeral shaft fracture
  • Pathologic lesion/metastasis
  • Postoperative/hardware evaluation
Patient prep
  • Remove radiopaque objects; gown
Contrast
None / non-contrast
Technique
  • AP: erect or supine, arm slightly abducted, hand supinated (epicondyles parallel to IR), CR perpendicular to mid-humerus
  • Lateral: arm internally rotated (epicondyles perpendicular to IR) or transthoracic/cross-table lateral if trauma
  • Include BOTH shoulder and elbow joints
  • SID 40 inches; grid for proximal humerus; kVp ~70-75
Series / Sequences
#Series / SequencePlaneNotes
1APFrontalEpicondyles parallel to IR; include shoulder and elbow joints
2LateralSagittalEpicondyles perpendicular to IR (mediolateral); transthoracic lateral if patient cannot rotate arm (trauma)
Key points
  • Transthoracic lateral (Lawrence) for proximal humerus when arm cannot be moved
  • Always include both joints to assess for associated injury
  • Do not rotate arm if fracture suspected — use horizontal-beam lateral
References
• Lampignano JP, Kendrick LE. Bontrager's Handbook of Radiographic Positioning and Techniques. 11th ed. Elsevier - humerus and shoulder girdle link
• Long BW, Rollins JH, Smith BJ. Merrill's Atlas of Radiographic Positioning and Procedures, Volume 1. Elsevier; upper limb and shoulder girdle chapters.
• Radiopaedia: Humerus series link
Source: Researched — verify against your institution
Reference template — verify and adapt to your scanner, vendor and institution before clinical use. Not a substitute for clinical judgment.