Yon Chang-Jin, Lee Kyung-Jae, Choi Byung-Chan, Suh Ho-Sung, Min Byung-Woo
Department of Orthopaedic Surgery, School of Medicine & Institute for Medical Science, Keimyung University, Daegu 42601, Republic of Korea.
J Clin Med. 2023 Sep 27;12(19):6227. doi: 10.3390/jcm12196227.
Several methods have been introduced to measure the host bone coverage of the acetabular component after total hip arthroplasty (THA). The aims of this study were (1) to validate two-dimensional- and three-dimensional-based host bone coverage measurements by comparing intra-operative measurements, and (2) to determine the minimum host bone coverage for achieving stable cup fixation after THA in hip dysplasia. The clinical outcomes of each patient were evaluated during their final follow-up period using the Harris Hip score (HHS). The coverage of the host bone was analyzed by comparing 2D-based, 3D-based, and intraoperative assessments. The mean HHS was increased significantly from 60.84 ± 14.21 pre-operatively to 93.13 ± 4.59 ( < 0.0001). The host bone coverage ratio measured intraoperatively was 83.67 ± 3.40%, while the ratio measured by 3D CT reconstruction was 82.72 ± 3.59%. There was a strong positive correlation between the intra-operative host bone coverage and the 3D-based one (r = 0.826, < 0.0001). It is recommended that 3D-based measurements are used to evaluate the host bone coverage after THA in patients with hip dysplasia. In addition, achieving a minimum host bone coverage of 75% is recommended for the attainment of stable cup fixation.
已经引入了几种方法来测量全髋关节置换术（THA）后髋臼组件的宿主骨覆盖情况。本研究的目的是：（1）通过比较术中测量值来验证基于二维和三维的宿主骨覆盖测量方法；（2）确定髋关节发育不良患者在THA后实现髋臼杯稳定固定所需的最小宿主骨覆盖量。在最终随访期间，使用Harris髋关节评分（HHS）评估每位患者的临床结局。通过比较基于二维、三维和术中评估来分析宿主骨的覆盖情况。平均HHS从术前的60.84±14.21显著提高到93.13±4.59（<0.0001）。术中测量的宿主骨覆盖率为83.67±3.40%，而通过三维CT重建测量的比率为82.72±3.59%。术中宿主骨覆盖与基于三维的测量之间存在强正相关（r = 0.826，<0.0001）。建议使用基于三维的测量方法来评估髋关节发育不良患者THA后的宿主骨覆盖情况。此外，建议为实现髋臼杯的稳定固定，宿主骨覆盖量至少达到75%。
