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13Intraoperative radiological assessment

Assessment of rotation

Compare the profile of the lesser trochanter with that of the contralateral leg (lesser trochanter shape sign), holding the leg so that the patella faces anteriorly on both sides.

Before positioning the patient, store the profile of the lesser trochanter of the intact opposite leg (patella facing anteriorly) in the image intensifier.

The illustration shows the lesser trochanteric profile of the intact opposite side.