Li Ding, He Yuchen, Xu Zhenmu, Chen Yueming, Jiang Kai, Zhou Ding, Liu Qian, Zhu Weihong
Department of Orthopaedics, The Second Xiangya Hospital, Central South University, 139 Middle Renmin Road, Changsha, 410011, Hunan Province, P. R. China.
Department of Orthopaedics, Central Hospital of Shaoyang, Shaoyang, Hunan Province, P. R. China.
BMC Musculoskelet Disord. 2025 Aug 13;26(1):783. doi: 10.1186/s12891-025-09018-8.
Patellar tendon rupture is an uncommon injury that usually requires surgical repair, but no consensus exists regarding the ideal repair technique. Suture anchor repair and the transosseous suture method have be widely used, but the suture anchor technique may cause anchor pull-out, while the transosseous suture method may result in insufficient suture strength. Therefore, we propose and evaluate the efficacy of combined repair technique with two suture anchors and three transosseous sutures for patellar tendon repairs.
We conducted a retrospective cohort study of patients who received surgery for acute patellar tendon rupture at the inferior pole of the patella between January 2016 and December 2020. All patients underwent a standardized integrated knee extensor mechanism combined repair technique by the same surgeon with 2 suture anchors and 3 transosseous sutures. Radiology, complications, and patient-reported outcomes were recorded. Clinical outcomes were measured using range of motion (ROM), patient satisfaction, Visual Analog Scale (VAS) pain scores, Knee Society Function Score (KSS-F), International Knee Documentation Committee (IKDC) score, Lysholm score, and Tegner score.
Totally 40 patients were enrolled with an average age of 33.95 years. Mean follow-up duration was 60 months (range: 36 to 72 months). The risk of complications was 7.5% (3/40). Mean ROM improved from 45.65 ± 10.66 preoperatively to 127.25 ± 3.99 postoperatively (mean ± SD, p < 0.001). Mean postoperative VAS pain score, KSS-F score, IKDC score, Lysholm score and Tegner score significantly improved (p < 0.001). The Caton Deschamps Index (CDI) significantly decreased from 1.74 ± 0.19 preoperatively to 1.11 ± 0.06 postoperatively (p < 0.001). Postoperative MRI revealed evident healing between the patellar tendon and the inferior pole of the patella.
The combined repair technique demonstrated reliable mid-term outcomes with satisfactory functional recovery, radiological healing, and a low complication rate. This technique may serve as a practical and effective option for proximal patellar tendon ruptures.
髌腱断裂是一种罕见的损伤，通常需要手术修复，但对于理想的修复技术尚无共识。缝线锚钉修复和经骨缝合方法已被广泛应用，但缝线锚钉技术可能导致锚钉拔出，而经骨缝合方法可能导致缝合强度不足。因此，我们提出并评估使用两个缝线锚钉和三根经骨缝线的联合修复技术用于髌腱修复的疗效。
我们对2016年1月至2020年12月间在髌骨下极接受急性髌腱断裂手术的患者进行了一项回顾性队列研究。所有患者均由同一位外科医生采用标准化的综合膝关节伸肌机制联合修复技术，使用2个缝线锚钉和3根经骨缝线。记录影像学、并发症及患者报告的结果。使用活动范围（ROM）、患者满意度、视觉模拟量表（VAS）疼痛评分、膝关节协会功能评分（KSS-F）、国际膝关节文献委员会（IKDC）评分、Lysholm评分和Tegner评分来衡量临床结果。
共纳入40例患者，平均年龄33.95岁。平均随访时间为60个月（范围：36至72个月）。并发症风险为7.5%（3/40）。平均ROM从术前的45.65± 10.66改善至术后的127.25± 3.99（均值±标准差，p < 0.001）。术后平均VAS疼痛评分、KSS-F评分、IKDC评分、Lysholm评分和Tegner评分均显著改善（p < 0.001）。Caton Deschamps指数（CDI）从术前的1.74± 0.19显著降至术后的1.11± 0.06（p < 0.001）。术后MRI显示髌腱与髌骨下极之间有明显愈合。
联合修复技术显示出可靠的中期结果，功能恢复良好，影像学愈合满意，并发症发生率低。该技术可能是近端髌腱断裂的一种实用且有效的选择。
