Cementless Total Hip Replacement in 20 Juveniles Using BFX™ Arthroplasty

Publication date 24th June 2014
Authors Noel Fitzpatrick, Andy Law, Malgorzata Bielecki, Sarah Girling


To describe outcome after a minimum of 1 year for total hip replacement (THR) using BioMedtrix BFX™ biologic fixation implants in skeletally immature dogs (6–10 months of age).

Study design

Case series.


Dogs (n = 20).


Medical records (November 2007–June 2010) of 20 dogs, 6–10 months old that had cementless THR were reviewed. Preoperative, immediate, 6-week and >1-year postoperative radiographs were compared. Clinical examination was performed at 6 weeks and >1 year postoperatively. Owner questionnaire was obtained at final follow-up.


Cementless THR using BFX™ implants was performed because of debilitating coxofemoral pain, resulting from canine hip dysplasia, after unsatisfactory outcome with medical management. Radiographs taken immediately, 6 weeks and at a mean of 29.8 months (range, 12–48 months) postoperatively revealed satisfactory implant positioning and stability. Significant change in measured cranial–caudal femoral stem fill and level (P 


Cementless THR can safely be performed in skeletally immature dogs, providing satisfactory return to normal joint function and implant survivability for at least a mean of 29.8 months.