5yo gelding Veterinary Diagnosis Trauma to the suprascapular nerve aka “Sweeney Shoulder” Presented with 5/5 lameness right fore, with subluxation of his right shoulder joint occurring. What is Sweeney Shoulder? When trauma occurs to the suprascapular nerve, innervation to the infraspinatus and supraspinatus muscles of the shoulder becomes compromised. Due to the compromised innervation, these two muscles begin to atrophy – this atrophy is what is commonly termed “Sweeney Shoulder”. The supraspinatus muscle provides lateral support to the shoulder joint as well as playing a role in shoulder joint extension. The infraspinastus muscle acts like a lateral collateral ligament to the shoulder joint as well assisting in shoulder joint flexion.…