Long-term outcome of juvenile pubic symphysiodesis and triple pelvic osteotomy in dogs with hip dysplasia.
OBJECTIVE
To compare long-term outcomes of juvenile pubic symphysiodesis (JPS) and triple pelvic osteotomy (TPO) in dogs with hip dysplasia.


METHODS
Prospective clinical trial.


METHODS
18 dogs with hip dysplasia (ie, distraction index > or = 0.5 in at least 1 hip joint and no, mild, or moderate radiographic evidence of degenerative joint disease [DJD]).


METHODS
Dogs between 4 and 5.5 months old at enrollment were assigned to undergo JPS, and dogs between 5 and 12 months old were assigned to undergo TPO. All dogs were reexamined at 2 years of age.


RESULTS
At 2 years of age, there were no significant differences between groups in regard to lameness scores, angle of extension of the hip joints, distraction index, peak vertical force, acetabular angle, radiographic DJD score, or owner-assigned scores of clinical function. Dorsal acetabular rim angle was significantly higher in dogs that underwent JPS than in dogs that underwent TPO. For dogs that underwent TPO, dorsal acetabular rim angle was significantly decreased and acetabular angle was significantly increased at 2 years of age, compared with values obtained prior to surgery.


CONCLUSIONS
Results suggest that JPS and TPO have similar effects on hip joint conformation in dogs with moderate to severe hip dysplasia but that neither procedure eliminates the hip joint laxity characteristic of hip dysplasia or the progression of degenerative changes.
Manley
Paul A
PA
Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA.
Adams
William M
WM
Danielson
Kelson C
KC
Dueland
R Tass
RT
Linn
Kathleen A
KA
D000818:Animals; D001174:Arthrodesis / Q000379:methods / Q000662:veterinary*; D004285:Dogs; D005260:Female; D005500:Follow-Up Studies; D005684:Gait; D006619:Hip Dysplasia, Canine / Q000601:surgery*; D007794:Lameness, Animal / Q000453:epidemiology; D010384:Pelvic Bones / Q000601:surgery*; D011446:Prospective Studies; D011631:Pubic Symphysis / Q000601:surgery*; D016059:Range of Motion, Articular / Q000502:physiology; D016896:Treatment Outcome