How can you tell the difference between AP and PA view of wrist?

A PA view refers to a film of the wrist in which the x-ray beam passes from the dorsal to the palmar surface of the wrist, with the palmar aspect of the wrist lying fiat on the x-ray film. AP refers to a wrist positioned with the dorsum of the wrist touching the film and the x-ray beam passing palmar to dorsal.

Why does pa look at wrist?

The PA wrist radiograph is requested for myriad reasons including but not limited to trauma, suspected infective processes, injuries the distal radius and ulna, suspected arthropathy or even suspected foreign bodies.

How many views is a wrist X-ray?

The standard wrist views are Posterior-Anterior (PA) and Lateral. In certain circumstances further views are helpful so that the 8 overlapping bones are more easily seen. The wrist comprises the scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate and hamate bones.

Why do we use ulnar deviation for scaphoid views?

Ulnar deviation is necessary as it moves the scaphoid away from the radius and rotates it in the palmer aspect, minimising superimposition and achieving a pure PA projection 2-4.

What is AP view of wrist?

The PA wrist view is part of a three view series of the wrist and carpal bones. Although performed PA the view can often be referred to an AP view.

What does AP View mean?

AP, X-ray: An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.

What is a PA view of the hand?

The Hand PA view is part of a two view series metacarpals, phalanges, carpal bones and distal radial ulnar joint.

What is a scaphoid view?

The posteroanterior ulnar deviation scaphoid view is part of a four view series of the scaphoid, wrist and surrounding carpal bones. Although performed PA, the view can often be referred to as an AP view. The view is performed with the wrist in ulnar deviation to free the scaphoid from bony superimposition.

What are the 4 scaphoid views?

7 The American College of Radiology (ACR) has recommended four views for a suspected scaphoid fracture. 8 These are postero-anterior (PA), lateral, semi- pronated oblique and PA with ulnar deviation and/or cephalad tube angle (Fig. …

What is the best view to witness a scaphoid fracture?

A lateral view with the wrist neutral (87.8%) and a postero-anterior view in ulnar deviation (51.5%) were considered most useful. Of the consultant radiologists, 68.4% suggested four views and 15.8% suggested three views.

What is lateral view of wrist?

The lateral wrist view is part of a three view series of the wrist and carpal bones. It is the orthogonal projection of the PA wrist.

What is the carpal boss view?

The carpal boss is a hypertrophied bony protuberance on the dorsal surfaces of the base of the second or third metacarpals, near the capitate and trapezium. It may be bilateral. It can be symptomatic in some instances 5.

What is PA and AP view in xray?

The erect anteroposterior chest view is an alternative to the PA view when the patient is too unwell to tolerate standing or leaving the bed 1. The AP view examines the lungs, bony thoracic cavity, mediastinum, and great vessels.

Why do we do Pa hand?

PA PROJECTION: HAND XRAY A normal x-ray examination of hand will be demonstrating, fractures, dislocations, or foreign bodies of the phalanges, metacarpals, and all joints of the hand are shown. PA / AP view a Pathologic processes such as osteoporosis and osteoarthritis also may be demonstrated.

What are the Amsterdam wrist rules?

The Amsterdam Wrist Rules is a clinical prediction rule with a high sensitivity and negative predictive value for fractures of the wrist. The Amsterdam Wrist Rules can provide physicians in the Emergency Department with a useful screening tool to select patients with acute wrist trauma for radiography.

What are scaphoid views?

The scaphoid series is comprised of a posteroanterior, oblique, lateral and angled posteroanterior projection. The series examines the carpal bones focussed mainly on the scaphoid. It also examines the radiocarpal and distal radiocarpal joint along with the distal radius and ulna.

Which radiographic projection best demonstrates the scaphoid?

Chapter 5-Upper Limb-Positioning Workbook

Question	Answer
Trauma or infection makes the anterior fat pad more difficult to see on a lateral elbow radiograph?	False
Which projection best demonstrate the scaphoid fat pad?	PA and oblique wrist
Which projection best demonstrates the pronator fat stripe?	lateral wrist

Does carpal boss show up on xray?

Carpal boss is often seen on imaging both in symptomatic and asymptomatic patients. Patients typically present with a local swelling and /or pain. The etiology is still unclear. Radiography and especially CT can analyze the bony morphology, but fail to correlate with the experienced pain.

Is carpal boss the same as carpal tunnel?

While carpal tunnel syndrome is caused by the same repetitive motions irritating the median nerve and causing discomfort in your fingers, carpal boss syndrome stems from bone overgrowth in the wrist where your index or middle fingers meet the carpal bones.

Which radiographic findings are characteristic of a zygomatic fracture?

Patients with suspected facial trauma and/or zygomatic fractures are evaluated primarily with craniofacial X-rays or CT scans. Several different radiographic views are useful to observe specific parts of the skull. The most common views that enable visualization of the zygomatic area are: Occipitomental (OM) or Water’s View

What are the articulations of the zygoma?

Articulations. The zygoma articulates with the greater wing of sphenoid, orbital surface and lateral border of maxilla, zygomatic process of the temporal bone (completing the zygomatic arch), and zygomatic process of the frontal bone.

What are the different radiographic views of the wrist?

acute flexion AP inferosuperior view Coyle’s view external oblique view medial oblique view forearm series AP view lateral view horizontal beam lateral PA view wrist and hand radiography wrist series PA view

Can a zygoma fracture be caused by trauma?

Fractures of the zygoma can occur with a blow to the lateral face. This type of trauma can result in an isolated fracture, such as from the impact of a clenched fist. However, it can also occur in conjunction with other fractures of the face, usually as a result of MVAs or other high-impact injuries.