No abstract

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.

General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms and report owner-assessed outcomes.Methods: Entries into the British Veterinary Orthopaedic Association-Canine Hip Registry (BVOA-CHR) between September 2011 and December 2012 were reviewed separately and in conjunction with previous data. An online, owner-administered outcomes assessment questionnaire (modified from the Liverpool Osteoarthritis in Dogs (LOAD) questionnaire) was used to collect outcomes data from owners. Results:The incidence of surgeon and owner reported complications were 8.2% and 4.3% respectively. No significant association was identified between bodyweight, age, sex, breed or indication for THR and the incidence of complications. THR using the BFX cup/stem prosthesis had a significantly greater likelihood of complication compared to when using the CFX cup/stem prosthesis (p=0.002); a complication was 4.48 times more likely to occur when using the BFX cup/stem prosthesis versus the CFX cup/stem prosthesis. THR using the BFX cup/stem prosthesis had a significantly higher likelihood of complication compared to when using a hybrid prosthesis (BFX cup/CFX stem, CFX cup/BFX stem) (p=0.046); a complication was 2.85 times more likely to occur when using the BFX cup/stem prosthesis versus a hybrid prosthesis. In 95% of cases, owners described their satisfaction with the outcome of THR as 'very good' or 'good'. Conclusions:Complication rates from the BVOA-CHR are similar to previous studies. 'Surgeon' and 'clinic' are not variables in our analysis (contractual) but the data suggest that prosthesis type has a relationship with complication rate, with Biomedtrix BFX (circa 2012) having a high short-term complication rate.

This study found the Helica hip endoprosthesis system to be effective in the management of hip dysplasia and osteoarthritis in dogs. Aseptic loosening of the femoral stem remains the most common complication but appears to have been significantly reduced with the introduction of the second-generation stem.

Objective: To report outcomes and complications associated with total hip replacements (THR) using a multiuser canine hip registry (CHR) and owneradministered questionnaire.Study design: Prospective longitudinal clinical study. Animals: Dogs (n = 1852).Methods: Total hip replacement cases submitted to a CHR were reviewed. An online questionnaire including an adapted "Liverpool Osteoarthritis in Dogs" (LOAD) score was e-mailed to owners. Data were analyzed to determine associations between clinical variables and the agreement by veterinary surgeons and owners for complications.Results: A group of 1329 (72%) dogs had unilateral THRs and another group of 523 (28%) dogs had bilateral THRs, resulting in 2375 THRs. Indications included hip dysplasia and osteoarthritis (n = 2028/2375, 85%). Implants were manufactured by Kyon (n = 1087, 46%), BioMedtrix CFX (n = 514, 22%), Bio-Medtrix hybrid (n = 264, 11%), BioMedtrix BFX (n = 221, 9%), and Helica (n = 107, 4.5%). Median veterinary surgeon and owner follow up were 1328 and 900 days respectively. Postoperative LOAD scores (21 ± 9) reported by