Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China.
J Orthop Surg (Hong Kong). 2022 May-Aug;30(2):10225536221101701. doi: 10.1177/10225536221101701.
To investigate the curative effects of improved non-absorbable high-strength fixation under arthroscopy on posterior cruciate ligament (PCL) avulsion fracture. A retrospective analysis was performed on 16 cases of PCL avulsion fracture in 15 patients who underwent high-strength suture fixation under arthroscopy from December 2017 to November 2019. According to the Meyers-McKeever classification, there were 2 cases of type II and 14 cases of type III. The fracture was reduced under arthroscopy, and knotted and fixed under the anterior and medial skin of the knee joint with high-strength sutures and a button plate. Regular follow-up of the knee joint healing and stability, the range of motion and the functional recovery of affected limb was conducted. The last follow-up was completed after the button plate was taken out. The Lysholm score was used to assess the recovery situation. The button plate was taken out 6-9 months (average 7.2 months) after surgery. At the last follow-up, the fractures of the 15 patients were all healed. Moreover, six patients were positive for posterior drawer test within Grade 1 and the others were negative. All patients had no knee extension limitation, and the range of knee flexion reached more than 120°, with an average of (132.4 ± 3.6)°. The average Lysholm score was (93.1 ± 4.7). There were significant differences in knee flexion angle and Lysholm score at different time points after operation, = 0.000. For the treatment of PCL avulsion fracture, the optimized arthroscopic high-strength suture fixation is easy to perform and repeat, and the fixation is strong and solid. The functions of the knee joint experienced good recovery after the surgery.
探讨关节镜下改良不可吸收高强固定治疗后交叉韧带（PCL）撕脱骨折的疗效。回顾性分析 2017 年 12 月至 2019 年 11 月采用关节镜下高强缝线固定治疗的 15 例 PCL 撕脱骨折患者 16 例。根据 Meyers-McKeever 分类，Ⅱ型 2 例，Ⅲ型 14 例。关节镜下复位骨折，在膝关节前内侧皮肤用高强缝线和纽扣钢板打结固定。定期随访膝关节愈合及稳定性、关节活动度及患肢功能恢复情况。取出纽扣钢板后完成最后一次随访。采用 Lysholm 评分评估恢复情况。术后 6-9 个月（平均 7.2 个月）取出纽扣钢板。末次随访时，15 例患者骨折均愈合。此外，6 例患者后抽屉试验阳性 1 级，其余均为阴性。所有患者均无膝关节伸直受限，膝关节屈曲度均超过 120°，平均（132.4±3.6）°。Lysholm 评分平均（93.1±4.7）分。术后不同时间点膝关节屈曲角度和 Lysholm 评分比较差异均有统计学意义， = 0.000。关节镜下优化高强缝线固定治疗 PCL 撕脱骨折，操作简便，可重复，固定牢固。术后膝关节功能恢复良好。
