Plate fixation of anterior pelvic ring fractures is often a vital component when surgically treating unstable pelvis fractures. Certain plate and screw configurations can have premature implant loosening, potentially in part due to insufficient pullout strength in lower density bone. This study sought to define densities about the anterior pelvic ring using a novel computer-based technique. Thirty-three patients who received a computed tomography (CT) of the abdomen/pelvis for reasons other than pelvis fracture in a 1-month time period were included. Three statistically distinct density regions of the anterior pelvis were identified based on the three-dimensional (3D) density map. The densest regions included both the anterior and posterior aspects of the superior pubic ramus, along with the region of bone along the inferior cotyloid fossa. The intermediate density region included the caudal and medial pubic body. The least dense region included the anterior aspect of the inferior pubic ramus (IPR), the posterior pubic body, and the posterior/inferior IPR. This study presents specific quantification of anterior pelvis bone density based on a novel technique using opportunistic CT scans. Clinical Significance: Anterior surgical fixation of unstable pelvic ring injuries may benefit from targeting areas of higher density as described in this novel technique.

中文翻译：

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前骨盆骨密度的量化和可视化以优化螺钉固定：一项新技术

在手术治疗不稳定的骨盆骨折时，前骨盆环骨折的钢板固定通常是一个重要的组成部分。某些钢板和螺钉配置可能会导致种植体过早松动，部分原因可能是低密度骨的拔出强度不足。本研究试图使用一种基于计算机的新型技术来定义骨盆前环的密度。包括 33 名在 1 个月内因骨盆骨折以外的原因接受腹部/骨盆计算机断层扫描 (CT) 的患者。基于三维 (3D) 密度图确定了前骨盆的三个统计上不同的密度区域。最密集的区域包括耻骨上支的前部和后部，以及沿着下臼窝的骨骼区域。中间密度区域包括尾部和内侧耻骨体。密度最低的区域包括耻骨下支 (IPR) 的前部、耻骨体后部和后/下 IPR。本研究基于一种使用机会性 CT 扫描的新技术提出了前骨盆骨密度的具体量化。临床意义：如这项新技术所述，不稳定骨盆环损伤的前路手术固定可能受益于靶向更高密度的区域。本研究基于一种使用机会性 CT 扫描的新技术提出了前骨盆骨密度的具体量化。临床意义：如这项新技术所述，不稳定骨盆环损伤的前路手术固定可能受益于靶向更高密度的区域。本研究基于一种使用机会性 CT 扫描的新技术提出了前骨盆骨密度的具体量化。临床意义：如这项新技术所述，不稳定骨盆环损伤的前路手术固定可能受益于靶向更高密度的区域。