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首页> 外文期刊>Journal of orthopaedic research >Area, length and mineralization content of new bone at bone-tendon junction predict its repair quality.
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Area, length and mineralization content of new bone at bone-tendon junction predict its repair quality.

机译：骨腱连接处的新骨的面积，长度和矿化含量可预测其修复质量。

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摘要

We investigated the hypothesis that if the area, length, and mineralization of newly formed bone could be used to predict the healing quality of patella-patellar tendon (PPT) junction after partial patellectomy. Twenty-four rabbits underwent partial patellectomy and their PPT complexes of the operated limbs were harvested at weeks 6, 12, and 18 postoperatively. The area, length, and mineralization of newly formed bone at PPT junction healing interface was evaluated radiographically and peripheral quantitative computational tomographically. The healing quality of PPT complexes in terms of its tensile property was determined by biomechanical testing. The results showed that the area, length, and mineral content of newly formed bone, and its tensile strength increased significantly with follow-up time. The area of newly formed bone was strongly correlated with the failure load, ultimate strength and energy at failure (r = 0.75, 0.76, and 0.70, respectively, p < 0.01 for all). The length of newly formed bone was also found to be correlated with failure load, ultimate strength and energy at failure (r = 0.61, 0.54, 0.67, respectively, p < 0.01 for all). In addition, the bone mineral content of newly formed bone but not its bone mineral density was moderately correlated with failure load, ultimate strength and energy at failure (r = 0.44, 0.51, 0.42, respectively, p < 0.05 for all). In conclusion, the area, length, and mineralization of newly formed bone at the PPT junction after partial patellectomy may serve as useful noninvasive indices in assessing the quality of the bone-tendon junction repair.
机译：我们调查了以下假设：如果部分partial骨切除术后，新形成的骨头的面积，长度和矿化可用于预测of骨-pat腱（PPT）交界处的愈合质量。 24只兔子接受了部分tell骨切除术，并在术后第6、12和18周收获了其手术肢体的PPT复合物。通过X射线照相和X线断层摄影术评估了PPT连接愈合界面处新形成的骨头的面积，长度和矿化程度。通过生物力学测试确定了PPT复合物在拉伸性能方面的修复质量。结果表明，随着时间的推移，新形成的骨的面积，长度和矿物质含量及其抗张强度均显着提高。新形成的骨头的面积与破坏载荷，极限强度和破坏时的能量密切相关（r分别为0.75、0.76和0.70，全部p <0.01）。还发现新形成的骨头的长度与破坏载荷，极限强度和破坏时的能量相关（r分别为0.61、0.54、0.67，所有p均<0.01）。此外，新形成的骨骼的骨矿物质含量与破坏负荷，极限强度和破坏能量适度相关（r分别为0.44、0.51、0.42，p均<0.05）。总之，部分pa骨切除术后PPT交界处新形成的骨的面积，长度和矿化可能是评估骨腱连接处修复质量的有用的非侵入性指标。

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