From the Northwestern Memorial Hospital-Department of Orthopedic Surgery (Butler and Stover), Chicago, IL, and Carolinas Medical Center (Dr. Sims), CMC Orthopaedic Surgery, Charlotte, NC.
J Am Acad Orthop Surg. 2021 Feb 1;29(3):e109-e115. doi: 10.5435/JAAOS-D-20-00080.
The quadrilateral plate (QP) is the relatively flat surface of bone in the true pelvis lying directly medial to the acetabulum. This surface is frequently involved in acetabular fractures. Elderly individuals, in particular, commonly sustain anterior column fractures with incomplete or complete posterior hemitransverse fracture lines with associated QP comminution. If QP fracture lines propagate through the superior weight-bearing surface of the acetabulum, the femoral head may displace medially, leading to poor outcomes if not addressed. Fortunately, the collective work of many orthopaedic surgeons has resulted in numerous effective methods for approaching, reducing, and stabilizing the QP and the diverse family of fractures which affect it. A thorough understanding of the QP, its anatomy, radiology, and techniques for fixation, is required to optimize patient outcomes.
四方区板块（QP）是真骨盆中相对平坦的骨表面，位于髋臼的正内侧。这个表面经常涉及髋臼骨折。特别是老年人，经常发生前柱骨折，伴有不完全或完全后半月形横行骨折线，并伴有 QP 粉碎。如果 QP 骨折线穿过髋臼的负重面上方，股骨头可能会向内侧移位，如果不处理，可能会导致不良后果。幸运的是，许多骨科医生的共同努力已经产生了许多有效的方法来处理、减少和稳定 QP 以及影响它的各种骨折。为了优化患者的治疗效果，需要充分了解 QP 的解剖结构、影像学表现和固定技术。
