Objective: To investigate the effectiveness of Endobutton plate coracoclavicular fixation combined with fracture site high-strength suture Nice knot cerclage fixation in the treatment of distal clavicle fracture with coracoclavicular ligament injury.
Methods: The clinical data of 33 cases of distal clavicular fracture with coracoclavicular ligament injury treated by Endobutton coracoclavicular plate fixation between January 2017 and December 2020 were analyzed retrospectively. According to the fixation methods of fracture site, they were divided into two groups: the high-strength suture Nice knot fixation group (study group, 16 cases) and the transacromial Kirschner wire fixation group (control group, 17 cases). There was no significant difference between the two groups in common data such as age, gender, injury side, cause of injury, Craig type, combined injury, time from injury to operation, and preoperative visual analogue scale (VAS) score and Constant-Murley score ( P>0.05). Postoperative fracture healing and complications were observed, and the increase rate of coracoclavicular space on the affected side was calculated at last follow-up. VAS score was used to evaluate shoulder pain before operation, at 1 week, 1 month, 3 months after operation, and at last follow-up. The shoulder function was evaluated according to Constant-Murley shoulder score before operation, at 1 month, 3 months after operation, and at last follow-up.
Results: The operations were successfully completed in both groups without severe complications such as vascular nerve injury and coracoid fracture. In the control group, 1 case (5.9%) had slight pin tract infection and 1 case (5.9%) had Kirschner wire displacement; there was no obvious complication in the study group. The patients in both groups were followed up 9-36 months (mean, 22.9 months). The fracture healing time of the study group and the control group were (12.56±0.73) weeks and (13.59±0.87) weeks, respectively, and the difference was significant ( t=-3.661, P=0.001). At last follow-up, the increase rates of coracoclavicular space on the affected side of the study group and the control group were 8.88%±1.19% and 8.55%±1.07%, respectively, showing no significant difference ( t=0.837, P=0.409). The postoperative VAS score and Constant-Murley score of the two groups significantly improved when compared with those before operation, and the two scores gradually improved with the extension of time after operation ( P<0.05). Except that the VAS score at 1 week and 1 month after operation and the Constant-Murley score at 1 month after operation in the study group were significantly better than those in the control group ( P<0.05), there was no significant difference between the two groups at other time points after operation ( P>0.05).
Conclusion: For oblique fracture or combined with butterfly fracture in the distal clavicle fracture with coracoclavicular ligament injury, the fracture site high-strength suture Nice knot fixation is a good supplement to the Endobutton plate coracoclavicular fixation. It can stabilize the fracture end, reduce the complications of Kirschner wire fixation, and is more conducive to fracture healing. The effectiveness is satisfactory.
目的: 探讨Endobutton钢板喙锁固定联合骨折端高强度缝线Nice结环扎固定治疗合并喙锁韧带损伤的锁骨远端骨折疗效。.
方法: 回顾性分析2017年1月—2020年12月采用Endobutton钢板喙锁固定治疗的33例伴喙锁韧带损伤锁骨远端骨折患者临床资料，根据骨折端固定方式分为高强度缝线Nice结固定组（研究组，16例）和经肩峰克氏针固定组（对照组，17例）。两组患者年龄、性别、损伤侧别、致伤原因、Craig分型、合并伤、受伤至手术时间及术前疼痛视觉模拟评分（VAS）、Constant-Murley评分等一般资料比较差异均无统计学意义（ P>0.05）。术后了解骨折愈合及并发症发生情况，末次随访时计算患侧喙锁间距增加率；采用VAS评分评估术前，术后1周、1个月、3个月及末次随访时患侧肩部疼痛程度；术前，术后1、3个月及末次随访时根据Constant-Murley肩关节评分标准评价肩关节功能。.
结果: 两组患者均顺利完成手术，术中无血管神经损伤、喙突骨折等严重并发症发生。术后对照组1例（5.9%）出现轻微钉道感染，1例（5.9%）出现克氏针移位；研究组无明显并发症发生。两组患者均获随访，随访时间9～36个月，平均22.9个月。研究组和对照组患者骨折均愈合，愈合时间分别为（12.56±0.73）周和（13.59±0.87）周，差异有统计学意义（ t=−3.661， P=0.001）。末次随访时研究组与对照组患侧喙锁间距增加率分别为8.88%±1.19%和8.55%±1.07%，差异无统计学意义（ t=0.837， P=0.409）。两组术后VAS评分及Constant-Murley评分均较术前显著改善，术后随时间延长两评分亦逐渐改善，差异有统计学意义（ P<0.05）。除术后1周及1个月 VAS评分以及术后1个月Constant-Murley评分研究组显著优于对照组（ P<0.05）外，术后其余时间点两组间两评分比较差异均无统计学意义（ P>0.05）。.
结论: 在合并喙锁韧带损伤的锁骨远端骨折中，对于斜形骨折或合并蝶形骨块的骨折类型，骨折端高强度缝线Nice结固定是Endobutton钢板喙锁固定的良好补充，能稳定骨折端、减少克氏针固定并发症的发生，更有利于骨折愈合，术后疗效满意。.
Keywords: Distal clavicle fracture; Endobutton plate; Kirschner wire; Nice knot; coracoclavicular fixation.