Page 80 - A Practical Guide to Equine Radiography

VetBooks.ir CHAPTER 7

Metacarpus and metatarsus

Indications Radiographic protocol
Indications for performing radiographs of the A standard radiographic examination of the
metacarpus and metatarsus include: metacarpus/metatarsus usually includes four
projections:
• Lameness localized to this region by diagnos-
tic analgesia (high four-point nerve block, • Lateromedial (LM)
lateral palmar block, high two-point block, • Dorsopalmar (DPa)
deep branch of the lateral plantar nerve, sub- • Dorso 45º lateral-palmaromedial oblique
carpal or subtarsal nerve blocks) (D45L-PaMO) and dorso 45º medial-pal-
• Signs of trauma, such as wounds and marolateral oblique (D45M-PaLO).
swellings
• Bony swellings Additional projections for the distal metacarpus
• Pain on palpation. (already explained in Chapter 6):

• Flexed dorsopalmar (flexed DPa)
Equipment • Dorsodistal-palmaroproximal oblique
For a complete study of the metacarpus and (DDi-PaPrO).
metatarsus the following equipment is required:
Note: when radiographs of the metatarsus are
• Portable X-ray machine obtained, the term palmar should be changed
• Plate holder to plantar.
• Radiation safety equipment: lead gowns,
lead gloves and thyroid protectors.

Preparation
If necessary, brush or wash the area to reduce
artefacts caused by dirt. Sedation of the patient
is advised.

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