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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: The impact of the union of lesser trochanter fragments after intramedullary fixation of trochanteric femoral fractures: an X-ray based study

Fig. 1

(a) A 74-year-old male patient with displacement of the lesser trochanter (LT) following intramedullary fixation of intertrochanteric fracture and the ratio of |(A-A1) |/A1 +| (B-B1) |/ B1 is 0.37. A was defined as the vertical distance from the tip of LT to the horizontal line of the acetabular apex on both sides. The horizontal displacement B was defined as the vertical distance from the tip of LT to the edge of a line drawn along the lateral border of the femoral cortex. The vertical and horizontal distance of the healthy side was considered as A1 and B1. L in figure means left side. (b) At 1-year follow-up, the LT-fragment showed nonunion, and the patient presented with excessive lateral migration of the blade and hip varus. L means left side

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