Bielecki M J, Schwandt C S, Scharvogel S
Malgorzata J. Bielecki, Mag.med.vet., Tierklinik Haar, Keferloher Str. 25, 85540 Haar, Germany, Phone: +49 89 46148510, Fax: +49 89 4614851199, E-mail:
Vet Comp Orthop Traumatol. 2014;27(6):470-7. doi: 10.3415/VCOT-14-02-0018. Epub 2014 Oct 20.
The main objectives were to evaluate the impact of femorotibial subluxation on the preoperative measurements for tibial tuberosity advancement (TTA) by defining radiographic landmarks and testing the repeatability for assessing cranial tibial subluxation (CTS). Also, we aimed at developing a formula to calculate the necessary adjustment in measurement of TTA in stifles with CTS.
Forty stifles were used to examine the influence of CTS on preoperative TTA measurements before and after transection of the cranial cruciate ligament. Mediolateral radiographs were obtained and measurements performed by three investigators. The observed variabilities were assessed by inter- and intra-observer differences.
Measurements of CTS and preoperative TTA showed a good to excellent inter- and intra-observer correlation. We found a significant influence of CTS on TTA measurements and developed a formula to calculate the necessary adjustment in measurement of TTA in stifles with CTS.
We found a correlation between the tibial subluxation and the measurements for TTA, with the latter decreasing with increasing subluxation. This has to be taken into account when measuring the advancement in stifles with complete rupture of the cranial cruciate ligament. We provided a formula to calculate the necessary addition to the measured advancement.
主要目的是通过定义影像学标志并测试评估胫骨髁上半脱位（CTS）的可重复性，来评估股胫半脱位对胫骨结节前移术（TTA）术前测量的影响。此外，我们旨在开发一个公式，用于计算患有CTS的膝关节中TTA测量所需的调整值。
使用40个膝关节来检查在切断前交叉韧带前后CTS对术前TTA测量的影响。获取内外侧X线片，并由三名研究人员进行测量。通过观察者间和观察者内差异评估观察到的变异性。
CTS和术前TTA的测量在观察者间和观察者内显示出良好到极好的相关性。我们发现CTS对TTA测量有显著影响，并开发了一个公式来计算患有CTS的膝关节中TTA测量所需的调整值。
我们发现胫骨半脱位与TTA测量之间存在相关性，后者随着半脱位的增加而减小。在测量前交叉韧带完全断裂的膝关节的前移时必须考虑到这一点。我们提供了一个公式来计算测量前移所需的必要增加量。
