Learning Objectives 1. Determine normal weight of Pomeranian. 2. Understand Ò3 out of 4Ó rating system. 3. Review stifle anatomy. 4. Determine what it means to have a pain response to a cranial drawer test and to dorsal flexion of the tail. 5. Explain Òmedial buttressing.Ó 6. Determine how readily the patella should luxate (if at all) when the stifle is in extension.