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Objectives:
The collared stem was designed to reduce the risk of subsidence. This retrospective multicenter study reports outcome and complications in a cohort of dogs undergoing total hip arthroplasty (THA) with a BFX collared stem.
Methods:
Medical records from four veterinary referral centers were reviewed for dogs undergoing THA using a BFX collared stem. Radiographic follow-up of at least six weeks and an owner questionnaire at time of data collection were required. Radiographic analyses included canal flare index (CFI), canal fill (CF) and stem subsidence. Outcome assessment included lameness grade at last clinical examination and an owner questionnaire at time of data collection. Statistics comprised descriptive and univariate analyses.
Results:
In total, 104 dogs (134 THA) were included. Median age was 3.1 years (range 0.4 - 10.8) and median weight was 27 kg (range 16 - 47.2). Intraoperative fissures occurred in 7 (5.2%) cases. Major postoperative complications (8.2%) included coxofemoral luxation (5.2%), femoral fracture (2.2%) and stem subsidence (0.8%). Two (1.5%) catastrophic long-term complications (infection) resulted in explantation. Median radiographic follow-up was 12 months (range 6 – 270 weeks). Median CFIcor was 1.9 (range 1.5 - 2.4), median CFcor 70% (range 51 - 82) and median CFsag 60% (range 45 - 79). Median stem subsidence was 1.0mm (range -1.8 - 10.8). No lameness was observed in 87/100 (87.0%) cases with clinical follow-up > 3 months. In 122/134 (91.0%) full function was reported by the owners.
Conclusions:
THA using a BFX collared stem resulted in low complication rates and low stem subsidence despite low overall CF.
34th Annual Scientific Meeting proceedings
Stream:
|
Session:
Date/Time: 03-07-2025 (19:15 - 19:30) | Location:
Date/Time: 03-07-2025 (19:15 - 19:30) | Location:
A retrospective multicenter study of outcomes and complications in dogs undergoing total hip arthroplasty using a BFX collared stem
Brandstetter V1, Matis U*2, Schuenemann R*3, Arndt C*2, Pozzi A*4, Natsios P4, Haimel G*1
1Tierarztpraxis am Stadtpark, Vienna, Austria, 2Small Animal Hospital Weilheim, Weilheim, Germany, 3Small Animal Hospital Sattledt, Sattledt, Austria, 4Department of Small Animal Surgery, College of Veterinary Medicine, University of Zurich, Zurich, Switzerland.
Objectives:
The collared stem was designed to reduce the risk of subsidence. This retrospective multicenter study reports outcome and complications in a cohort of dogs undergoing total hip arthroplasty (THA) with a BFX collared stem.
Methods:
Medical records from four veterinary referral centers were reviewed for dogs undergoing THA using a BFX collared stem. Radiographic follow-up of at least six weeks and an owner questionnaire at time of data collection were required. Radiographic analyses included canal flare index (CFI), canal fill (CF) and stem subsidence. Outcome assessment included lameness grade at last clinical examination and an owner questionnaire at time of data collection. Statistics comprised descriptive and univariate analyses.
Results:
In total, 104 dogs (134 THA) were included. Median age was 3.1 years (range 0.4 - 10.8) and median weight was 27 kg (range 16 - 47.2). Intraoperative fissures occurred in 7 (5.2%) cases. Major postoperative complications (8.2%) included coxofemoral luxation (5.2%), femoral fracture (2.2%) and stem subsidence (0.8%). Two (1.5%) catastrophic long-term complications (infection) resulted in explantation. Median radiographic follow-up was 12 months (range 6 – 270 weeks). Median CFIcor was 1.9 (range 1.5 - 2.4), median CFcor 70% (range 51 - 82) and median CFsag 60% (range 45 - 79). Median stem subsidence was 1.0mm (range -1.8 - 10.8). No lameness was observed in 87/100 (87.0%) cases with clinical follow-up > 3 months. In 122/134 (91.0%) full function was reported by the owners.
Conclusions:
THA using a BFX collared stem resulted in low complication rates and low stem subsidence despite low overall CF.
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