Wessling Martin, Gebert Carsten, Marei Mohamed, Dudda Marcel, Streitbuerger Arne, Aach Mirko, Jeys Lee, Frieler Sven, Koller Daniela, Hanusrichter Yannik
Department of Tumor Orthopedics and Revision Arthroplasty, Orthopedic Hospital Volmarstein, 58300 Wetter, Germany.
Center for Musculoskeletal Surgery, University Hospital of Essen, 45147 Essen, Germany.
J Clin Med. 2025 Jan 30;14(3):922. doi: 10.3390/jcm14030922.
The growing incidence of acetabular revisions has highlighted the importance of achieving reliable fixation to the remaining bone. Proximal transiliac fixation (TIF) of pelvic implants is becoming an increasingly common approach for managing extensive bone defects. This study seeks to provide guidance on TIF implantation by analyzing the optimal screw placement in partial pelvic replacements for acetabular defects. : Between 2014 and 2024, a cohort of 96 consecutive patients (65 females and 31 males) who underwent customized partial pelvic replacement (PPR) with transiliac fixation (TIF) were examined. The angle and entry point of the ideal TIF were determined using preoperative three-dimensional planning and compared with potential influencing factors. : All PPRs were successfully implanted, with an average TIF length of 77 mm. The mean anteroposterior angle for TIF was 18° medially and 27° dorsally. : Analysis of the entry point showed concentration around the second radius and between the eleven o'clock and one o'clock positions. The AP angle is notably affected by gender and height. Considering the precision of human judgment, a recommendation for TIF placement would be 20° medial and 30° dorsal deviation, with the entry point around the twelve o'clock position and the second ring from the center of the cup.
髋臼翻修发生率的不断上升凸显了实现与剩余骨可靠固定的重要性。骨盆植入物的近端经髂骨固定（TIF）正成为处理广泛骨缺损的一种越来越常见的方法。本研究旨在通过分析髋臼缺损部分骨盆置换中最佳螺钉置入位置，为TIF植入提供指导。：在2014年至2024年期间，对96例连续接受定制化部分骨盆置换（PPR）并采用经髂骨固定（TIF）的患者（65例女性和31例男性）进行了检查。使用术前三维规划确定理想TIF的角度和入点，并与潜在影响因素进行比较。：所有PPR均成功植入，TIF平均长度为77mm。TIF的平均前后角度在内侧为18°，在背侧为27°。：入点分析显示集中在第二半径周围以及11点和1点位置之间。前后角度明显受性别和身高影响。考虑到人类判断的精度，TIF置入的建议为内侧偏离20°、背侧偏离30°，入点在12点位置左右且距髋臼杯中心第二环处。
