Mechanical forces as predictors of healing during tibial lengthening by distraction osteogenesis.
Mechanical forces as predictors of healing during tibial lengthening by distraction osteogenesis.
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机械力作为牵引成骨延长胫骨期间愈合的预测因子。
DOI：
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发表时间：
1994
影响因子：
4.2
通讯作者：
J. H. Harp
中科院分区：
文献类型：
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作者：
J. Aronson;J. H. Harp
在21只成年犬左侧胫骨延长15%的过程中，每周使用三个安装在Ilizarov外固定器环之间的在线测力传感器测量直接轴向载荷。负荷随时间线性增加，在牵引结束时（第4周）达到最大值。干骺端延长部位（平均155 N）产生的载荷显著高于骨干部位（平均111 N）。通过将测得的载荷除以每个牵引成骨部位的计算机断层扫描测得的横截面积来计算应力;干骺端和骨干组在每个时间点表现出相等的应力，在牵引结束时最大值为47 N/cm 2。发生了6例过早巩固，证明牵引第2周时载荷显著大于200 N。3例骨不连在牵引第3周时测得的载荷显著较低（平均值为60 N或26 N/cm 2）。
Direct axial loads were measured weekly during a 15% left tibial lengthening in 21 skeletally mature dogs using three in-line load cells mounted between the rings of an Ilizarov external fixator. The loads increased linearly over time to a maximum at the end of distraction (Week 4). The metaphyseal lengthening sites (mean, 155 N) generated significantly higher loads than diaphyseal sites (mean, 111 N). Stress was calculated by dividing measured load by the computed tomographic-measured cross-sectional area of each distraction osteogenesis site; the metaphyseal and diaphyseal groups demonstrated equal stress at each time point with a maximum of 47 N/cm2 at the end of distraction. Six premature consolidations occurred that demonstrated loads significantly greater than 200 N by Week 2 of distraction. Three nonunions occurred that had significantly lower loads measured by Week 3 of distraction (mean, 60 N or 26 N/cm2).
通过单平面或两平面外固定稳定胫骨截骨的早期愈合。
DOI：
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发表时间：
1987
期刊：
The Journal of bone and joint surgery. American volume
影响因子：
--
作者：
Williams,EA;Rand,JA;An,KN;Chao,EY;Kelly,PJ
通讯作者：
Kelly,PJ