Fig. 2From: Essential role of reliable reduction quality in internal fixation of femoral neck fractures in the non-elderly patients—a propensity score matching analysisOn the AP image, the angle between the medial shaft and the central axis of the medial compressive trabeculae should measure between 160 and 180 degrees. Line I = perfect reduction. Area II = good. Area III = satisfying. Area IV = poor reductionBack to article page