Denervation of the periosteal origin of the adductor muscles in conjunction with adductor fasciotomy in the surgical treatment of refractory groin pull.

Background: The purpose of this study was to determine whether resection of the nerve that innervates the origin of the adductor muscle group in addition to an adductor fasciotomy will decrease pain and improve function in patients with a chronic "groin pull."

Methods: The authors conducted a retrospective multicenter chart review of 12 patients presenting with refractory groin pull. In two patients, the problem was bilateral.

Trisomy 2 in three cases of canine haemangiopericytoma.

Two female (12 and 14 years old) and one male dog (10 years old) developed haemangiopericytomas. Three copies of chromosome 2 were present in the tumours of all three dogs. Additional alterations were an interstitially deleted chromosome 1, centric fusions 3/34 and 8/15, isochromosome 32 and two unidentified marker chromosomes (M1, M2) in one bitch.