Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
Knee. 2020 Oct;27(5):1293-1299. doi: 10.1016/j.knee.2020.06.012. Epub 2020 Jul 27.
The purpose of this study was to investigate postoperative tunnel widening after rectangular tunnel bone-patellar-tendon-bone graft anterior cruciate ligament reconstruction using newer-generation bioabsorbable interference screws.
Forty-six patients who had undergone primary rectangular tunnel bone-patellar-tendon-bone graft anterior cruciate ligament reconstruction using MILAGRO bioabsorbable interference screws (DePuy Synthes, Warsaw, IN, USA) for femoral fixation and for whom computed tomography was performed at two weeks and one year postoperatively were included in this prospective study. To assess the tunnel widening, the cross-sectional area of the femoral tunnel aperture (compared between two weeks and one year postoperatively) was assessed using computed tomography. Cyst formation, postoperative screw breakage, screw migration, and graft migration were also evaluated using computed tomography one year postoperatively.
Mean tunnel widening was 1.9%, and the cross-sectional area of the femoral tunnel aperture was not significantly different between two weeks and one year postoperatively. Postoperative cyst formation, screw breakage, screw migration, and graft migration were not observed in any patient.
After rectangular tunnel bone-patellar-tendon-bone graft anterior cruciate ligament reconstruction using bioabsorbable interference screws for femoral fixation, tunnel widening was not observed via computed tomography analysis at two weeks and one year postoperatively.
本研究旨在探讨使用新一代生物可吸收性干扰螺钉进行矩形隧道髌腱-骨-骨移植物前交叉韧带重建术后隧道增宽的情况。
本前瞻性研究纳入了 46 例接受 MILAGRO 生物可吸收性干扰螺钉（DePuy Synthes，华沙，IN，美国）进行股骨固定的原发性矩形隧道髌腱-骨-骨移植物前交叉韧带重建患者，所有患者术后两周和一年均行 CT 检查。为评估隧道增宽情况，使用 CT 评估股骨隧道开口的横截面积（与术后两周和一年进行比较）。术后一年还使用 CT 评估囊肿形成、螺钉断裂、螺钉迁移和移植物迁移的情况。
平均隧道增宽为 1.9%，术后两周和一年股骨隧道开口的横截面积无显著差异。术后任何患者均未出现囊肿形成、螺钉断裂、螺钉迁移和移植物迁移的情况。
使用生物可吸收性干扰螺钉进行股骨固定的矩形隧道髌腱-骨-骨移植物前交叉韧带重建后，通过术后两周和一年的 CT 分析未观察到隧道增宽。
