HOW TO TAKE AND INTERPRET RADIOGRAPHS OF THE YOUNG PERFORMANCE HORSE
Case 4. Lucencies of the lateral trochlear ridge and patella.
Fig. 3. Caudolateral to craniomedial 20° oblique projec- tion. This horse has a large irregular lucency in the proximal- lateral tibial plateau (white circle and arrows). This radiograph will be discussed by the panel as Case 3.
Caudolateral to Craniomedial 20° Oblique Projection of the Stifle Joint (Fig. 3)
(1) Lucencies and sclerosis in the medial femoral condyle (MFC)
(2) Osteophytes on the medial intercon- dylar eminence, proximal medial tibial plateau, or proximal abaxial articular margin of the MFC
(3) Lucencies and sclerosis in the medial tibial plateau
(4) Lucencies and sclerosis in the lateral tibial plateau
(5) Lucencies and sclerosis in the lateral femoral condyle
(6) Sclerosis at the attachment of cranial menisco-tibial ligament
The areas of greatest concern on this view include the medial femoral condyle, the medial tibial pla- teau, the proximal lateral tibial plateau, and the LTR.
Abnormalities best assessed on the caudolateral
to craniomedial 20° oblique projection are listed be- low. If the RA is in bold type, it is the best projection to detect that RA.
(1) Lucencies and sclerosis in the medial femoral condyle
(2) Osteochondral fragments or lucencies in the LTR
(3) Lucencies and sclerosis in the medial tibial plateau
(4) Lucencies and sclerosis in the lateral tibial plateau
Case Prognosis Summary Case 3. Large Irregular Lucency in the Proximal Tibia
Performance Goal
Racing
Western English
Surgery Yes/No/ Maybe
Maybe
performance Maybe performance Maybe
General purpose Maybe
Excellent Prognosis
Prognosis Good
Guarded Prognosis
Prognosis
buyer/ owner
buyer/ owner
buyer owner buyer owner
Poor
Case Prognosis Summary Case 4. Lucencies of the Lateral Trochlear Ridge and Patella
