Comparison of the diagnostic value of ultrasonography and standing radiography for pelvic-femoral disorders in horses.
OBJECTIVE
To assess agreement between ultrasonography (transcutaneous and transrectal) and standing radiography in horses with fractures in the pelvic region and disorders of the coxofemoral joint.


METHODS
Case series.


METHODS
Warmblood horses (n=23) and 2 ponies.


METHODS
Medical records (1999-2008) of equids with pelvic or coxofemoral disorders that had pelvic radiography and ultrasonography were retrieved and results of both techniques compared.


RESULTS
Radiography and ultrasonography each identified equal numbers of fractures of the tuber coxa (n=4), ilial shaft (2), ischium (3), femoral neck (2), and osteoarthritis/osis of the coxofemoral joint (6). Fractures of the ilial wing (4) were only identified by ultrasonography not by standing radiography. Of 9 acetabular fractures, 3 were identified on radiographs only, 5 were identified with both modalities. One pubic fracture was identified using ultrasonography and radiography. One acetabular and 1 pubic fracture were only diagnosed on necropsy.


CONCLUSIONS
We found reasonable agreement (73%; 24/33) between ultrasonography and standing radiography for diagnosis of pelvic-femoral disorders. Ultrasonography was more useful for ilial wing fractures and radiography for acetabular fractures.


CONCLUSIONS
Ultrasonography is a rapid, safe imaging technique for detecting disorders of the pelvic region with a high diagnostic yield and is a preferred initial approach in horses with severe hindlimb lameness.
Geburek
Florian
F
Equine Clinic, University of Veterinary Medicine Hanover, Foundation, Bischofsholer Damm 15, Hannover, Germany. florian.geburek@tiho-hannover.de
Rötting
Anna K
AK
Stadler
Peter M
PM
D000818:Animals; D001344:Autopsy / Q000662:veterinary; D037901:Euthanasia, Animal; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging / Q000662:veterinary*; D050723:Fractures, Bone / Q000175:diagnosis / Q000662:veterinary*; D006734:Horse Diseases / Q000000981:diagnostic imaging*; D006736:Horses / Q000293:injuries*; D007794:Lameness, Animal / Q000209:etiology; D010003:Osteoarthritis / Q000175:diagnosis / Q000662:veterinary*; D010384:Pelvic Bones / Q000000981:diagnostic imaging / Q000293:injuries*; D011859:Radiography; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014463:Ultrasonography