FIGURE 55.31
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Calculation of tip-apex distance (TAD). Distances from tip of implant to apex of femoral head on anteroposterior
(left)
and lateral
(right)
views are summed (X
AP
+ X
Lat
). TAD of less than 25 mm should be achieved.
出典
1:
Redrawn from Powell J, Dirschl DR: Fractures of the proximal femur. In Baumgaertner MR, Tornetta P, editors: OKU Trauma 3, Rosemont, American Academy of Orthopaedic Surgeons, 2005; and Lindskog DM, Baumgaertner MR: Unstable intertrochanteric hip fractures in the elderly, J Am Acad Orthop Surg 12:179, 2004.