. The principles and practice of roentgenological technique . nal(Easiest arrangement,completely overlap)Extero-internalOblique Condyles should 5. Postero-anterior Difficulties 1. Joint space is oblique 2. Leg and thigh must be horizontal to get joint spaceNotes: With the leg extended, the jointspace is at the level of the lower surface ofthe patella. If examining for bursitis dontoverexpose or overdevelop. Calcification ofpopliteal arteries may be seen in poplitealspace. Joint bodies may be visible abovepatella between it and the femur. Antero-Posterior Posture (Fig. 246) Thigh and leg must b
. The principles and practice of roentgenological technique . nal(Easiest arrangement,completely overlap)Extero-internalOblique Condyles should 5. Postero-anterior Difficulties 1. Joint space is oblique 2. Leg and thigh must be horizontal to get joint spaceNotes: With the leg extended, the jointspace is at the level of the lower surface ofthe patella. If examining for bursitis dontoverexpose or overdevelop. Calcification ofpopliteal arteries may be seen in poplitealspace. Joint bodies may be visible abovepatella between it and the femur. Antero-Posterior Posture (Fig. 246) Thigh and leg must be horizontal Immobilization Fix both legs Tube position Five inch cone, upper edge of cone lJ/2 in-ches (4 cm.) above upper edge of patella Interno-ExternalPosture Trunk on same hip, plate to outer side, kneeextended, other knee extended, abductedand flexed Immobilization Sand bag over leg and middle thigh Tube position Upper edge of 5 cylinder 1^4 aboveupper edge of patella. Patellar shadowis clear of condylar. Central ray goesthrough intercondyloid spines. Fig. 245 Fig. 246 174 KNEE
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectradiogr, bookyear1920
