HOW TO TAKE AND INTERPRET RADIOGRAPHS OF THE YOUNG PERFORMANCE HORSE
Fig. 2. Caudal to cranial elevated 20° projection of the stifle joint. This horse has an irregular lucency in the MFC (white circle). This radiograph will be discussed by the panel as Case 2.
Fig. 1. Lateral to medial projection of the stifle joint. This horse has a lucency with fragments in the proximal LTR (white circle). This radiograph will be discussed by the panel as Case 1.
articular surface of the patella, and the cranial prox- imal surface of the tibia. The caudal aspect of thes- tifle joint is often not included on the lateral to medial projection, which is acceptable if it is well projected on other views (Fig. 1). Abnormalities best assessed on the stifle lateral to
medial projection are listed below. If the RA is in bold type, it is the best projection to detect that RA.
(1) Osteochondral fragments or lucencies in the lateral trochlear ridge (LTR)
(2) Osteochondral fragments or lucencies in the medial trochlear ridge
(3) Osteochondral fragments or lucencies in the articular surface of the patella
(4) Osteochondral fragments or lucencies in the proximal tibia
Twenty-Degree Caudoproximal-Craniodistal Projection of the Stifle Joint (Fig. 2)
The areas of greatest concern on the 20° caudo- proximal-craniodistal projection of the juvenile stifle are the medial femoral condyle, the proximal medial tibial plateau, the medial intercondylar em- inence of the tibia including the attachment of the cranial menisco-tibial ligament, the proximal lateral tibial plateau, and the lateral femoral condyle. Abnormalities best assessed on the stifle 20° caudoproximal-craniodistal projection are listed be- low. If the RA is in bold type, it is the best projection to detect that RA.
Case Prognosis Summary Case 1. Lucency With Fragments in Proximal LTR
Performance Goal
Racing
Western English
Surgery Yes/No/ Maybe
Yes
performance Yes performance Yes
General purpose Maybe
Excellent Prognosis
owner/ buyer
owner/ buyer
owner/ buyer
owner/ buyer
396 2013 Vol. 59 AAEP PROCEEDINGS Prognosis Good
Guarded Prognosis
Prognosis Poor
Case Prognosis Summary Case 2. Irregular Lucency in Medial Femoral Condyle
