摘要目的:比较骨-腱椭圆隧道与传统腘绳肌肌腱圆形隧道在治疗重建前交叉韧带(ACL)断裂的效果。方法:本研究为回顾性研究，选取2019年1月至2020年1月北京大学深圳医院运动医学科收治的89例ACL断裂患者，男48例，女41例，年龄(50.28±7.02)岁，年龄范围为18~70岁。根据患者的治疗方式不同分为圆形隧道组( n＝43)和椭圆隧道组( n＝46)。圆形隧道组患者接受传统腘绳肌肌腱圆形隧道重建治疗，椭圆隧道组患者接受椭圆隧道及带骨块的腘绳肌肌腱重建治疗。比较两组患者术前和术后的膝关节稳定性、膝关节功能、疼痛情况及并发症的发生情况。 结果:两组患者术后膝关节稳定性比较，差异无统计学意义( P>0.05)。术后3个月、术后6个月及术后12个月，椭圆隧道组国际膝关节文件编制委员会(IKDC)膝关节标准评分[(80.74±2.18)分、(90.38±2.08)分、(95.01±1.11)分]均高于圆形隧道组[(71.69±2.19)分、(79.36±2.09)分、(85.68±1.18)分]，差异均有统计学意义( P<0.05)。术后3个月、术后6个月及术后12个月，椭圆隧道组的视觉模拟评分法(VAS)评分[(1.02±0.11)分、(0.98±0.11)分、(0.87±0.14)分]均低于圆形隧道组[(2.03±0.19)分、(1.96±0.13)分、(1.62±0.12)分]，差异有统计学意义( P<0.05)。椭圆隧道组并发症发生率[8.7%(4/46)]低于圆形隧道组[30.2%(13/43)]，差异有统计学意义( P<0.05)。 结论:椭圆隧道及带骨块的腘绳肌肌腱重建ACL能更好地改善膝关节功能和稳定性，减少疼痛和并发症的发生。

abstractsObjective:To compare the effect of bone-tendon elliptical tunnel and traditional hamstring tendon circular tunnel in anterior cruciate ligament(ACL)reconstruction.Methods:This study was a retrospective study, 89 patients with ACL fracture, including 48 males and 41 females, the age range ranged from 18 to 70 years old, were selected from the department of Sports Medicine, Peking University Shenzhen Hospital from January 2019 to January 2020.Patients were divided into circular tunnel group( n=43)and elliptical tunnel group( n=46)according to their treatment methods.Patients in the circular tunnel group received conventional hamstring tendon circular tunnel reconstruction, and patients in the elliptical tunnel group received elliptical tunnel and hamstring tendon reconstruction with bone block.The stability, function, pain and complications of knee joint were compared between the two groups before and after operation. Results:There was no significant difference in postoperative knee stability between the two groups( P>0.05).At 3, 6, and 12 months postoperatively, the knee standard scores of International Knee Documentation Committee(IKDC)in elliptic tunnel group[(80.74±2.18)points, (90.38±2.08)points, (95.01±1.11)points]were higher than those in circular tunnel group[(71.69±2.19)points, (79.36±2.09)points, (85.68±1.18)points], the differences were statistically significant( P<0.05).At 3, 6, and 12 months postoperatively, the visual analog scale(VAS)score of elliptical tunnel group[(1.02±0.11)points, (0.98±0.11)points, (0.87±0.14)points]were lower than that of circular tunnel group[(2.03±0.19)points, (1.96±0.13)points, (1.62±0.12)points], the differences were statistically significant( P<0.05).The incidence of complications in elliptical tunnel group[8.7%(4/46)]was lower than that in circular tunnel group[30.2%(13/43)], and the difference was statistically significant( P<0.05). Conclusions:Circular tunnel and hamstring tendon reconstruction with bone block ACL can better improve knee function and stability, and reduce pain and complications.