Medial compartment disease in a young Large Munsterlander

Medial compartment disease (MCD) is a recently recognized elbow disorder in dogs and refers to extensive cartilage erosions of the medial compartment of the elbow joint. This report describes a case of MCD in a 10- month-old Large Munsterlander that was presented with right frontleg lameness. Based on signalement, history and radiographic examination, there was a strong suspicion of a fragmented coronoid process (FCP) of the right elbow. However, arthroscopic examination revealed extensive cartilage erosions of the medial part of the humeral condyle and the medial coronoid process in addition to a small coronoid fragment (FCP) and a small OCD-Iike lesion. After the arthroscopic treatment, the dog did not improve. Neither did additional treatment with autologous conditioned plasma (Arthrex ACP®) lead to a substantial improvement. Finally, the dog was euthanized because of persistent lameness.