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Allaith et al: Outcomes and complications reported from a multiuser canine hip replacement registry over a 10-year period
Veterinary Surgery 2, 2023

🔍 Key Findings

From Allaith et al., 2023 – Outcomes from a multiuser canine hip replacement registry

  • 2375 total hip replacements were analyzed across 1852 dogs, making this the largest multiuser canine THR dataset to date.
  • Most common indications for THR were hip dysplasia (51%) and osteoarthritis (34%).
  • Implants used included Kyon (46%), BioMedtrix CFX (22%), Hybrid (11%), BFX (9%), and Helica (4.5%).
  • Veterinary-reported complication rate was 8.5%, while owner-reported was 23%, with moderate agreement (k=0.44).
  • Most common complications: Luxation, femoral fracture, and aseptic loosening.
  • BioMedtrix BFX and Helica implants had a higher risk of complications when used after femoral head and neck excision (P = .031).
  • Postoperative LOAD scores significantly improved vs preoperative (21 → 11; P < .0001), supporting improved mobility.
  • Owner satisfaction was high, with 88% rating outcome as very good or good.

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← Articles

Allaith et al: Outcomes and complications reported from a multiuser canine hip replacement registry over a 10-year period
Veterinary Surgery 2, 2023

🔍 Key Findings

From Allaith et al., 2023 – Outcomes from a multiuser canine hip replacement registry

  • 2375 total hip replacements were analyzed across 1852 dogs, making this the largest multiuser canine THR dataset to date.
  • Most common indications for THR were hip dysplasia (51%) and osteoarthritis (34%).
  • Implants used included Kyon (46%), BioMedtrix CFX (22%), Hybrid (11%), BFX (9%), and Helica (4.5%).
  • Veterinary-reported complication rate was 8.5%, while owner-reported was 23%, with moderate agreement (k=0.44).
  • Most common complications: Luxation, femoral fracture, and aseptic loosening.
  • BioMedtrix BFX and Helica implants had a higher risk of complications when used after femoral head and neck excision (P = .031).
  • Postoperative LOAD scores significantly improved vs preoperative (21 → 11; P < .0001), supporting improved mobility.
  • Owner satisfaction was high, with 88% rating outcome as very good or good.

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Multiple Choice Questions on this study

In Allaith 2023 et al., on THR outcomes, how did the veterinary surgeon–reported complication rate compare to that reported by owners?

A. Surgeons reported 23%, owners 8.5%
B. Surgeons reported 15%, owners 10%
C. Surgeons reported 10%, owners 18%
D. Surgeons reported 8.5%, owners 23%
E. Surgeons reported 5%, owners 12%

Answer: Surgeons reported 8.5%, owners 23%

Explanation: Veterinary-reported complication rate was 8.5% vs 23% by owners, indicating moderate agreement.
In Allaith 2023 et al., on THR outcomes, which implant types were associated with increased complications following femoral head and neck excision?

A. Kyon and BioMedtrix CFX
B. BioMedtrix BFX and Helica
C. Kyon and Helica
D. BioMedtrix Hybrid and Kyon
E. BioMedtrix CFX and BFX

Answer: BioMedtrix BFX and Helica

Explanation: Multivariable analysis showed significantly increased complications using BFX and Helica implants for revision after femoral head and neck excision.
In Allaith 2023 et al., on THR outcomes, which implant system was used most frequently across the 10-year registry period?

A. BioMedtrix BFX
B. Helica
C. BioMedtrix CFX
D. Kyon
E. BioMedtrix Hybrid

Answer: Kyon

Explanation: Kyon implants were used in 46% of THRs, making them the most frequently used implant system in the registry.
In Allaith 2023 et al., on THR outcomes, which of the following was most commonly reported as a major complication?

A. Fracture of the femoral neck
B. Aseptic loosening of the implant
C. Luxation of the prosthetic joint
D. Acetabular cup displacement
E. Implant failure

Answer: Luxation of the prosthetic joint

Explanation: Luxation was the most commonly reported major complication in both veterinary surgeon and owner reports.
In Allaith 2023 et al., on THR outcomes, what statistically significant change was observed in postoperative LOAD scores?

A. They decreased from 21 to 11
B. Pain increased slightly by 10 points
C. There was no significant change
D. They increased from 11 to 21
E. Scores dropped only after 5 years

Answer: They decreased from 21 to 11

Explanation: Postoperative LOAD scores improved significantly from 21 to 11 (P < .0001), showing better mobility.

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