Page 114 - A Practical Guide to Equine Radiography

VetBooks.ir CHAPTER 10

Shoulder

Indications Preparation
Radiography of the shoulder is not a routine If necessary, brush or wash the area to reduce
procedure, largely because shoulder lameness artefacts caused by dirt. Sedation of the patient
is relatively uncommon. However, quality is advised.
shoulder radiographs are useful for certain
conditions affecting the shoulder, including
fractures, osteochondrosis, osteoarthritis or Radiographic protocol
shoulder dysplasia. A standard radiographic examination of the
Indications for performing radiographs of shoulder usually includes a minimum of two
the shoulder include: radiographs, although this may vary depending
on the suspected disease:
• Lameness localized to the shoulder by diag-
nostic analgesia (scapulohumeral joint block) • Mediolateral (ML)
• Soft tissue and bony swellings • Cranio 45º medial-caudolateral oblique
• Signs of trauma (Cr45M-CdLO).
• Lameness in Shetland ponies that cannot be
attributed to other regions. Additional projections

• Cranioproximal-craniodistal oblique (CrPr-
Equipment CrDiO) or ‘skyline’ view of the proximal
For a complete study of the shoulder the fol- aspect of the humerus.
lowing equipment is required:

• High-output X-ray generator
• Large plates (35 × 43 cm)
• Plate holder: ceiling/wall-mounted
• Grid: should be used to reduce scatter and
improve image quality
• Radiation safety equipment: lead gowns,
lead gloves and thyroid protectors.

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