Complications and owner assessment of canine total hip replacement: a multicenter internet based survey.
OBJECTIVE
To assess the variables associated with the complications of total hip replacement (THR) and report owner-assessed outcomes, through surgeon-based registration of cases via an online database, informed owner consent, and prospective outcomes assessment using a client-administered clinical metrology instrument.


METHODS
Prospective case series


METHODS
Dogs (n = 170)


METHODS
Entries into the British Veterinary Orthopaedic Association-Canine Hip Registry (BVOA-CHR) between January 2010 and August 2011 were reviewed. Variables evaluated included dog age, body weight, breed, and indication for THR and prosthesis. Associations between each variable and the incidence of complications were assessed using logistic regression. Additionally, an on-line, owner-administered outcomes assessment questionnaire (modified from the Liverpool Osteoarthritis in Dogs (LOAD) questionnaire) was used to collect data from owners.


RESULTS
One hundred and seventy cases met the inclusion criteria. Surgical indications included hip dysplasia and coxofemoral osteoarthritis (n = 150), Legg-Calves-Perthes disease (7), coxofemoral luxation (6), fracture (4), slipped capital physis (2), and femoral head and neck ostectomy revision (1). Surgical implants were from 4 systems. The incidence of surgeon-reported complication was 9.4%. No significant association was identified between weight, age, sex, breed, indication for THR, surgical technique and prosthesis, and the incidence of complications. In 82% of the cases, owners described their satisfaction with the outcome of THR as "very good" and a total of 20% complication rate was reported. There was a statistically significant improvement in owner-assessed questionnaire score before and after THR (P < .001).


CONCLUSIONS
The BVOA-CHR offers a novel framework for the prospective studies on THR and on a national/international scale. Initial complication rates from the BVOA-CHR are similar to previous studies.
Small Animal Teaching Hospital, School of Veterinary Science, University of Liverpool, Neston, UK.
Kate E
KE
Forster
Andrew
A
Wills
Andrew M
AM
Torrington
Andy P
AP
Moores
David
D
Thomson
Gareth
G
Arthurs
Gordon
G
Brown
Hamish R
HR
Denny
Harry W
HW
Scott
Ian
I
MacQueen
James
J
Dunne
Jeremy
J
Onyett
John D
JD
Walker
John
J
Prior
Martin R
MR
Owen
Neil
N
Burton
Richard
R
Whitelock
Sarah
S
Girling
Shane
S
Morrison
Simon
S
Gilbert
Sorrel J
SJ
Langley-Hobbs
Toby J
TJ
Gemmill
John F
JF
Innes
D000818:Animals; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000662:veterinary*; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D005260:Female; D006619:Hip Dysplasia, Canine / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects / Q000662:veterinary; D006801:Humans; D020407:Internet; D008297:Male; D015207:Osteoarthritis, Hip / Q000601:surgery / Q000662:veterinary; D016896:Treatment Outcome