title: Early failure of a proximally cemented, distally uncemented total hip arthroplasty.
abstract: This investigation prospectively studied a consecutive series of 22 proximally cemented, distal cementless, femoral components with a minimum follow-up time of 24 months. The prosthesis was a titanium, proximally cemented, femoral component with a distal press-fit fluted design. Five hips (23%) developed aseptic mechanical loosening at an average of 46.2 months and required revision. The technique required excessive removal of cancellous bone leading to a suboptimal bone-cement interface. The early failure rates of this prosthesis are unacceptably high for a contemporary hip design. To the best of our knowledge, no clinical studies have reported on the stability and longevity of this new proximal cementing technique incorporated with a distal press-fit femoral design.
authors.affiliation: Northwestern University Medical School, Chicago, Illinois, USA.
authors.forename: Anand
authors.initials: A
authors.lastname: Vora
authors.forename: James C
authors.initials: JC
authors.lastname: Kudrna
authors.forename: Valerie S
authors.initials: VS
authors.lastname: Harder
authors.forename: Behrang
authors.initials: B
authors.lastname: Mazahery
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001672:Biocompatible Materials / Q000627:therapeutic use; D001843:Bone Cements / Q000009:adverse effects*; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011475:Prosthesis Failure; D014025:Titanium / Q000627:therapeutic use
chemical_list: D001672:Biocompatible Materials; D001843:Bone Cements; D014025:Titanium