Normal Elbow Joint

(from Waibl et al.: Atlas of Radiographic Anatomy of the Dog, Parey 2003)

A Humerus B Radius C Ulna 2 medial humeral condyle 4 lateral epicondyle 6 medial epicondyle 13 medial coronoid process 14 lateral coronoid process 16 anconeal process	Mediolateral view
3 medial humeral condyle 7 lateral coronoid process 8 medial coronoid process	Craniocaudal view

Developmental phases of the canine Elbow

Ossification centers of

1. humeral condyle

2. medial epicondyle (anconeal process not yet visible!)

3. proximal radial epiphysis

Primary ED-Lesions (IEWG)

 Ununited Anconeal process (UAP)

 Fragmented medial coronoid process (FCP)

 Osteochondritis (dissecans) medial humeral condyle (OCD)

 Severe Incongruity/step between radius and Ulna (Inc)

For radiographic details please refer to the article by Flückiger. "Radiographic Diagnosis of Elbow Dysplasia in the Dog"