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首页> 外文期刊>Veterinary Surgery >Incidence of transcortical tibial fractures with self-tapping and non-self-tapping screws in a canine TPLO model.
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Incidence of transcortical tibial fractures with self-tapping and non-self-tapping screws in a canine TPLO model.

机译：TPLO模型中使用自攻钉和非自攻钉的经皮胫骨骨折发生率。

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Objective: To compare the incidence of radiographically apparent transcortical diaphyseal tibial fractures between self-tapping screws (STS) and non-self-tapping screws (NSTS) in a canine tibial plateau leveling osteotomy (TPLO) model. Study Design: Case series. Animals: Dogs (n=106) that had TPLO. Methods: NSTS (n=107), STS titanium (n=104), or STS stainless steel (n=105) screws were used for TPLO. Effect of STS and NSTS were compared by reviewing postoperative craniocaudal and lateral radiographic projections taken immediately after TPLO. Three screws distal to the tibial osteotomy served as the in vivo model for canine cortical bone. A transcortical fracture was defined as the presence of a saucer-shaped radiolucent defect on the periosteal surface of the trans-cortex surrounding the screw and the presence of radiopaque material (bone) separate from the transcortical periosteal surface. The effect of screw type and STS material (stainless steel or titanium) on the incidence of transcortical fractures was evaluated. Results: STS had a significantly higher (P=.006) incidence of transcortical fractures (18.0%) compared with NSTS (0.8%). The effect of STS material on the incidence of transcortical fractures was not significant (P=.485). No cis-cortical factures were identified. Conclusions: We suspect the increased incidence of transcortical fractures with STS is because of the shorter cutting flutes as compared with those of a tap used with a NSTS.
机译：目的：比较犬胫骨平台平整截骨术（TPLO）模型中自攻螺钉（STS）和非自攻螺钉（NSTS）在放射照相上明显的经皮骨干phy骨胫骨骨折的发生率。研究设计：案例系列。动物：具有TPLO的狗（n = 106）。方法：TPLO使用NSTS（n = 107），STS钛（n = 104）或STS不锈钢（n = 105）螺钉。通过回顾TPLO后立即进行的术后颅尾和侧位影像学检查，比较了STS和NSTS的疗效。胫骨截骨远端的三个螺钉用作犬皮质骨的体内模型。跨皮质骨折的定义是围绕螺钉的跨皮质的骨膜表面上存在碟形的射线可透性缺损，并且存在与皮质下骨膜表面分离的不透射线的材料（骨）。评估了螺钉类型和STS材料（不锈钢或钛）对经皮骨折的影响。结果：与NSTS（0.8％）相比，STS经皮皮质骨折的发生率（18.0％）显着更高（P = .006）。 STS材料对经皮骨折的发生率影响不显着（P = .485）。没有发现顺式皮层断裂。结论：我们怀疑STS经皮骨折的发生率增加是由于与NSTS丝锥相比，切槽较短。

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