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Visual Indicators of Posteriority

Visual Indicators of Posteriority - VISUAL INDICATORS 0F...

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Unformatted text preview: VISUAL INDICATORS 0F “POSTERIORITY” l. VISUAL POSTERIORITY (STAIRSTEPPING) * Superior segment posterior to segment below. , j 2. LOSS OF NORMAL CURVE (STACKING) Flattening of curve (most inferior segment is conddered posterior). ' 3.- SEVERE WEDGING ‘ . Severe wedgingn-open wedge to posterior aspect of disc (as seen above T6 or T7.. .may be caused be swelling in post. aspect disc... ' with rest of spine, severe wedging is associa- 3- ‘ ted with the anterior aspect of the disc). {4. HOURGLASSING , -. Elip se effect with lateral tipping. '- , =5. SCHMORL’S NODES * Fractures of end plate; imagination of nuclear material into body of vertebra. , Us. THIN DISC Compare to disc above and below. ‘7. EXOSTOSISIOSTEOPHYTIC CHANGE Lipping and spurring. 8. FORAMINAL ENCROACHMENT Look for one foramen that is more narrow. _ , 9. EBURNATION Conversion of bone to ivory-like mass i .e. as in osteoarthritis. Io. DISC CHANGE FROM OHMAL RELATIONSHIP j' Atypical findings. Stairstepping Visual Posteriorig Loss of Normal Curve (Stacking) Severe Wedging Hourglassing Schmorl’s Nodes 5 When the node is at the Wt“ the segment, When the node is at the m _a_ segmen ' t_on of the motion unit, list the “ .212” of the motion unit. OR In this ekample, T2 would be listed, “P.” n Thin Disc :. n‘ _.~. w J.‘ Exostosis/Osteophxtic Change List according to motion unit. Eburnation .. .‘ List according to motion , unit. ...
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