Outcome of permanent tracheostomy for treatment of upper airway obstruction in cats: 21 cases (1990-2007).

Objective: To determine clinical outcome of permanent tracheostomy in cats with upper airway obstruction.

Design: Retrospective case series.

Animals: 21 cats.

Femoral neuropathy in a dog with iliopsoas muscle injury.

Objective: To report femoral nerve dysfunction caused by focal iliopsoas muscle injury and treated by performing tenectomy of the muscle insertion.

Study Design: Case report.

Animals: A 4-year-old, castrated male, English Mastiff.

Scanning electron microscopic examination of third metacarpal/third metatarsal bone failure surfaces in thoroughbred racehorses with condylar fracture.

Objective: To examine the fracture failure surfaces from Thoroughbred horses that had sustained a catastrophic condylar fracture.

Sample Population: Bone specimens from the failure surface were obtained from 12 Thoroughbred racehorses with catastrophic injury and 2 non-racing horses with accidental long bone fracture.

Methods: Bone specimens from the failure surface of each fracture were incubated with gold microspheres to label microcracks before examination at x50 to x60,000 using scanning electron microscopy.