PURPOSE Tension band wiring remains a common treatment for patella fractures, but complication rates are high, with unsatisfactory results. The purpose of this observation study was to evaluate clinical results and complication rates of a novel patella locking plate fixation. METHODS Twenty patients (mean age, 59.2 ± 18 years) with displaced patella fractures were prospectively enrolled. Range of motion, knee scores (Tegner, Lysholm, Kujala), complications, and revision surgeries were assessed six weeks, six months, 12 months, and 24 months after surgery. Results were compared to the situation before trauma in regards to the time of follow-up using a paired sample t test. RESULTS According to the OTA classification, the fractures were classified as follows: one A1, four C1, six C2, and nine C3. Range of motion improved from 121° after six weeks to 140°, 141°, and 143° within the follow-up period. While the Tegner, Lysholm, and Kujala scores were 4.1/97/97, respectively, before trauma, they improved from 2.6/80/89 to 3.6/94/89, 3.7/95/94, and 4.1/97/97 within the follow-up period. Three patients had a complication (15%): one fracture dislocation, one reactive bursitis, and one renewed fracture. Four patients reported discomfort or anterior knee pain especially when kneeling on the implant. CONCLUSIONS The patella locking plate is a safe and effective treatment for patella fractures, including comminuted fractures. Function can be restored within six months after surgery, and the complication rate is low. Nonetheless, the implant can cause discomfort or anterior knee pain especially when kneeling, which can necessitate an implant removal.

中文翻译：

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锁定plating骨移位钢板固定后的结果：一个预期病例系列。

目的张力带布线仍然是for骨骨折的常见治疗方法，但并发症发生率很高，效果不理想。这项观察研究的目的是评估新型results骨锁定板固定的临床结果和并发症发生率。方法前瞻性纳入20例平均年龄59.2±18岁的with骨移位骨折患者。在手术后六周，六个月，十二个月和二十四个月对运动范围，膝关节评分（Tegner，Lysholm，Kujala），并发症和翻修手术进行了评估。使用配对样本t检验将结果与创伤前的情况进行比较。结果根据OTA分类，将骨折分为以下几类：1例A1、4例C1、6例C2和9例C3。运动范围从六个星期后的121°改善到随访期内的140°，141°和143°。尽管Tegner，Lysholm和Kujala得分在受伤前分别为4.1 / 97/97，但在运动前，它们分别从2.6 / 80/89提高到3.6 / 94 / 89、3.7 / 95/94和4.1 / 97/97。随访期。3例并发症（15％）：1例骨折脱位，1例反应性滑囊炎，1例新骨折。四名患者报告不适或膝前疼痛，尤其是跪在植入物上时。结论The骨锁定板是一种安全有效的fracture骨骨折，包括粉碎性骨折的治疗方法。术后六个月内即可恢复功能，并发症发生率低。但是，植入物会引起不适或膝盖前部疼痛，尤其是在跪下时，这可能需要移除植入物。