Analysis of Plate Bone Construct Failure Following Tibial Tuberosity Advancment

作者：McCartney W T^*; Galvin E; Mac Donald B; Comiskey D

来源：International Journal of Applied Research in Veterinary Medicine, 2011, 9(2): 193-197.

• Finite element analysis
• FEA
• tibial tuberosity advancement
• TTA
• cranial cruciate ligament
• CCL
• stifle
• canine

Tuberosity Advancement (TTA) is an operation to repair cranial cruciate ligament rupture in dogs. A review of previously unsuccessful TTA procedures was undertaken in an attempt to characterise the nature of bone failure. The x-rays demonstrated that failure of the advanced tibial tuberosity normally occurred in the gap between the cage/screw and fork/plate. A finite element model of a tibial tuberosity advancement (TA) was constructed and three different tension band plate (TBP) placement strategies were examined. In each of the three case studies, the distance between the cage hole and the top hole of the TBP was varied. The finding suggests that the cage hole may be a stress raiser, particularly when the TBP fork is mounted below the level of the cage hole.

• 出版日期2011