Growth plate forces in the adolescent human knee: A radiographic and mechanical study of epiphyseal staples
Growth plate forces in the adolescent human knee: A radiographic and mechanical study of epiphyseal staples
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DOI：
10.1097/00004694-200111000-00023
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发表时间：
2001-11-01
影响因子：
1.7
通讯作者：
Crawford, AH
中科院分区：
文献类型：
--
作者：
Bylski-Austrow, DI;Wall, EJ;Crawford, AH
本研究旨在量化青少年胫骨近端和股骨远端生长板产生的力。用于治疗外翻的斯台普斯的术后变形。与机械测试产生的类似吻合钉变形相关。在20例患者35个膝关节的连续X线片中测量缝钉变形。对新斯台普斯进行力学试验，以确定将斯台普斯弯曲至观察到的位移所需的力。基于最终检查时的变形，胫骨近端和股骨远端生长板施加在关节中心线上的静态等效载荷为0.5 kN/生长骨骺板。估计的相应应力为1 MPa。这些结果表明，成功的下肢半骨骺固定术抑制了纵向，集中施加的压缩力的体重的顺序。
The purpose of this study was to quantify the forces produced by the growth plates of the adolescent human proximal tibia and distal femur. The postoperative deformations of staples used to treat genu valgum. were correlated with similar staple deformations produced by mechanical testing. Staple deformation was measured in sequential radiographs of 35 knees in 20 patients. Mechanical tests were performed on new staples to determine the force necessary to bend the staples to the observed displacements. Based on deformation at final examination, the static equivalent loads exerted at the joint centerline by the growth plates of the proximal tibia and distal femur were 0.5 kN per physis. The estimated corresponding stress was 1 MPa. These results indicated that successful lower limb hemiepiphysiodesis suppressed a longitudinally directed, centrally applied compressive force on the order of body weight.