. Röntgen ray diagnosis and therapy . intracapsular and extracapsular fracture of the neck of the femurcannot be drawn, and that in the so-called extracapsular varietythe fracture line generally extends into the intracapsular region,and conversely that in intracapsular fracture the fracture lineoften extends somewhat outside the joint. The principles oftreatment must be modified accordingly. The skiagraphic proof of the presence of impaction implies theomissions of many manipulations, and suggests immediate im-mobilization in the impacted position. The diagnosis of isolated fracture of the tro
. Röntgen ray diagnosis and therapy . intracapsular and extracapsular fracture of the neck of the femurcannot be drawn, and that in the so-called extracapsular varietythe fracture line generally extends into the intracapsular region,and conversely that in intracapsular fracture the fracture lineoften extends somewhat outside the joint. The principles oftreatment must be modified accordingly. The skiagraphic proof of the presence of impaction implies theomissions of many manipulations, and suggests immediate im-mobilization in the impacted position. The diagnosis of isolated fracture of the trochanter majorwill also no longer be confounded with contusion. Fig. 99 shows fracture of the neck of the femur in a girl of 148 THE RONTGEN RAYS fourteen years. It is interesting to note the transverse position ofthe fragment, while the normal femoral neck of the healthy sideshows a longitudinal direction. Fracture of the femoral diaplujsis can be easily diagnosticatedas such without the aid of the Rontgen rays. Still, in view of the. Pig. 99.—Fracture of Femoral Neck. well-known tendency of displacement, recognition of the exact re-lations of the broken fragments is of great practical reposition is accomplished and an immobilizing dressingapplied, it is advisable to ascertain by skiagraphic examinationwhether apposition is perfect. One is often surprised about thisaberration, the fragments still being displaced to one side or an-other. Then there is still enough time to correct after the dress-ing is again removed. (See Chapter XYI on Corrections.) The necessity of always taking two skiagraphs in differentprojection planes is also illustrated hy Figs. 33 and 31. Thefrontal skiagraph, Fig. 33, represents the fracture of a boy of seven PELVIS AND LOWER EXTREMITY 149 years sustained seven weeks before being ekiagraphed. Ii -howsangular deformity only, which would suggesi no other correct-ing procedure than inward pressure. But Fig. 34, taken in tin-dorsal posi
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