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Fig. 1 | BMC Veterinary Research

Fig. 1

From: Comparison of tibial anatomical-mechanical axis angles and patellar positions between tibial plateau levelling osteotomy (TPLO) and modified cranial closing wedge osteotomy (AMA-based CCWO) for the treatment of cranial cruciate ligament disease in large dogs with tibial plateau slopes greater than 30° and clinically normal Labradors retrievers

Fig. 1

Measurements made in the AMA-based CCWO group. Mediolateral radiographs of the contralateral stifle (a, b) and postoperative mediolateral radiographs (c, d) illustrating the measurements made in the AMA-based CCWO group. a Measurement with the stifle joint angle at 90° according to Mostafa et al. [36] allows determination of the GVIcls (D/PJSL) and the craniocaudal position of the patella relative to the AA (b), and measurement of the AMA-based CCWO stifle postoperatively with the stifle joint angle at 90° (c) allows the calculation of the GVIpo (Dpo/PJSL). The GVIcls-GVIpo reflects a decrease in the distance between the distal pole of the patella and the tibial plateau. GVI, Guenego-Verwaerde index; cls, contralateral side; po, postoperative; A, cranial extent of the medial tibial plateau; PTW, proximal tibial width; AB = 2xPTW; DTW, distal tibial width; FCL, femoral condylar length; FW, femoral width; AA, anatomical axis; MA, mechanical axis; D, distance between the point at the intersection of the MA and the tibial plateau and the line perpendicular to the distal aspect of the patellar joint surface length (PJSL) according to Guenego et al. [16, 21]

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BMC Veterinary Research

ISSN: 1746-6148

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