Vicenti G, Pesce V, Tartaglia N, Abate A, Mori C M, Moretti B
Department of Neuroscience and Organs of Sense, Orthopaedic Section I, Faculty of Medicine and Surgery, University of Bari, Bari, Italy.
Department of Neuroscience and Organs of Sense, Orthopaedic Section I, Faculty of Medicine and Surgery, University of Bari, Bari, Italy.
Injury. 2014 Dec;45 Suppl 6:S27-35. doi: 10.1016/j.injury.2014.10.019. Epub 2014 Oct 31.
The dynamic locking screw (DLS) in association with minimally invasive plate osteosynthesis (MIPO) in a bridging construct for simple metadiaphyseal long bone fractures enables modulation of the rigidity of the system and facilitates the development of early and triplanar bone callus. Twenty patients affected by distal tibial fracture were treated with MIPO bridging technique and DLS at the proximal side of the fracture. Time of consolidation, quality of the reduction, complications and American Orthopaedic Foot and Ankle Society (AOFAS) score were monitored and the results compared with those from a control group treated with only standard screws on both fracture sides. Student t-test for independent samples was used for the comparison of means between the two groups. Chi-square test was used for the comparison of proportions. A multiple logistic regression model was constructed to assess the possible confounding effects. Performance was considered significant for p<0.05. The mean healing time was 17.6 ± 2.8 weeks in the group treated with standard screws and 13.5 ± 1.8 weeks in the group treated with DLS (t=5.5, p<0.0001). The DLS was associated with early healing and triplanar bone callus.
动力锁定螺钉（DLS）与微创钢板接骨术（MIPO）联合用于简单的干骺端长骨骨折的桥接固定，可调节系统的刚度，并促进早期和三平面骨痂的形成。20例胫骨干骺端骨折患者采用MIPO桥接技术，并在骨折近端使用DLS进行治疗。监测骨折愈合时间、复位质量、并发症及美国矫形足踝协会（AOFAS）评分，并将结果与仅在骨折两侧使用标准螺钉治疗的对照组进行比较。采用独立样本t检验比较两组的均值。采用卡方检验比较比例。构建多元逻辑回归模型以评估可能的混杂效应。当p<0.05时，认为差异具有统计学意义。使用标准螺钉治疗组的平均愈合时间为17.6±2.8周，使用DLS治疗组的平均愈合时间为13.5±1.8周（t=5.5，p<0.0001）。DLS与早期愈合和三平面骨痂形成有关。
