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Sep 12 2011, 6:53 AM EDT
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Change: the position, but did not achieve a true lateral position Soft Tissue SignsAnkle EffusionThis patient presented to the ED following fall. There is extensive soft tissue swelling. There is an ankle effusion with the anterior and posterior recesses visibly distended with fluid. Same image with
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Feb 7 2010, 9:36 PM EST
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Change: Physicians miss injuries to the Achilles tendon in 25% of cases, most often due to preservation of foot plantar flexion by the posterior tibial, peroneal,
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Aug 23 2009, 10:00 AM EDT
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Change: in http://jama.ama-assn.org/cgi/reprint/271/11/827Positioning Tips for Lateral Ankle RadiographySlightly flex the patient's kneeDorsiflex the patient's ankleEmploy a horizontal ray technique if requiredInclude the head of fibula in the series if there is a possibility of Maisonneuve fractureInclude the base of 5th
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Aug 23 2009, 9:59 AM EDT
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Change: Ottawa ankle rules for foot and ankle radiographic series in acute ankle injury patients adapted from Stiell IG, Greenberg GH, McKnight RD, et al.Decision rules for the use of radiography in acuteankle injuries: refinement and prospective validation.JAMA. 1993;269:1127-1132.Positioning Tips for Lateral Ankle RadiographySlightly flex
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Aug 23 2009, 9:36 AM EDT
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Change: above (comment invited!).above.There appear to be three choices:Centre to the ankle joint and collimate to include the base of the 5th metatarsal and the corresponding amount of visualised distal tib/fib will be determined by defaultDon't centre the beam to the
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Aug 23 2009, 9:28 AM EDT
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Change: Fractures of the posterior process of the talus are rare- the posterior process of the talus is somewhat protected by the Achille's tendon.This patient has an unusually large posterior process of the talusLarge posterior process of the talus marked Os trigonum is variable in
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Aug 23 2009, 9:27 AM EDT
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Change: Don't centre the beam to the ankle joint- collimate to include the distal third of the tib/fib proximally and the base of the 5th metatarsal distally and the centre point will look after itself (undesirable)Centre to the ankle joint and collimate to
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Aug 23 2009, 8:42 AM EDT
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Change: Where Should the X-ray Beam be Centred?AnkleHow Lateral is Lateral?adapted from Skeletal Radiography: A Concise Introduction to Projection RadiographyBy Sheila BullThe lateral ankle radiography challenge is largely a matter of deciding how far
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Aug 23 2009, 8:39 AM EDT
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Change: The most commonly seen normal anatomical variant on lateral ankle images is the os trigonum. This should not be confused with a fracture of the posterior process of the talus.This patient has an unusually large posterior process of the talusLarge posterior process of the talus marked Os
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Aug 23 2009, 8:29 AM EDT
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Change: Lower leg radiography is not ankle radiography- a tib/fib image will not pass for dedicated ankle radiographyHow Lateral is Lateral?adapted from Skeletal Radiography: A Concise Introduction to Projection RadiographyBy Sheila BullThe lateral ankle radiography challenge is largely a
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Aug 23 2009, 8:26 AM EDT
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Change: obnormal opacification of Kager's fatpad (grey arrow) Achille's Tendon Rupture This patient has a ruptured Achilles tendon (white arrow). Note the changes in Kager's Fat Pad (black arrow) Normal Kager's fat pad with clearly delineated normal Achilles tendon Complete disruption of the Achilles tendon
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Aug 23 2009, 8:18 AM EDT
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Change: If you correctly position the lateral ankle, the medial and lateral aspects of the talus will be overlapping and the joint will appear in profile.
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Aug 23 2009, 7:50 AM EDT
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Change: The ankle is malpositioned. The fibula is sited in the middle of the tibia suggesting that the toes are raised too far off the IR.The ankle was repsoitioned without the toes raised off the IR to good effect. Positioning Tips for Lateral Ankle RadiographySlightly flex the patient's knee
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Aug 23 2009, 7:23 AM EDT
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Change: Skeletal Radiography: A Concise Introduction to Projection RadiographyBy Sheila BullThe lateral ankle radiography challenge is largely a matter of deciding how far to roll the patient's ankle or, more
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Aug 23 2009, 7:22 AM EDT
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Change: Ankle radiography is often inappropriately undertaken in patients who have sustained a soft tissue injury. The most effective method of avoiding referrals for inappropriate ankle
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Aug 23 2009, 7:07 AM EDT
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Change: The lateral radiography challenge isPositioning largelyTips afor matterLateral ofAnkle decidingRadiographySlightly howflex farthe topatient's rollkneeDorsiflex the patient's ankle or,Employ morea specifically,horizontal howray muchtechnique toif raiserequiredInclude the patient'shead toesof (if
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Aug 23 2009, 6:52 AM EDT
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Change: diagnostic results.How Lateral is Lateral?The lateral radiography challenge is largely a matter of deciding how far to roll the patient's ankle or, more specifically, how much
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Aug 23 2009, 6:51 AM EDT
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Change: The lateral radiography challenge is largely a matter of deciding how far to roll the patient's ankle or, more specifically, how much to raise the patient's toes (if at all). This is not an easy judgement- consideration should be given to the width of the patient's foot. Correcting a
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Aug 23 2009, 6:29 AM EDT
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Change: Soft tissue swelling over the lateral malleolus is relatively common because inversion injuries of the ankle are relatively common. An extreme amount of soft tissue
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Aug 23 2009, 6:24 AM EDT
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Change: Soft tissue swelling over the lateral malleolus is relatively common because inversion injuries of the ankle are relatively common. An extreme amount of soft tissue
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