title: Good performance of a titanium femoral component in cementless hip arthroplasty in younger patients: 97 arthroplasties followed for 5-11 years.
abstract: We performed 97 uncemented primary total hip arthroplasties in 80 patients having an average age of 50 years. The femoral implant was a titanium stem with a proximal circumferential plasma spray-coating. Three different acetabular components were used: a threaded and partly porous-coated design in 70% of the cases. The average follow-up period was 8 years. 1 stem was revised 9 years after insertion due to a comminuted fracture of the proximal femur, 1 stem was revised 9 years after insertion due to a deep infection. No stem revisions were due to aseptic loosening. 1 femora had areas of distal osteolysis associated with a deep infection, but no signs of proximal loosening. 3 femora had areas of minor proximal osteolysis. 16 acetabular components (14 threaded) had been revised in 13 patients. The average Harris hip score was 91 points at the latest follow-up. We conclude that the uncemented titanium femoral component with a circumferential porous coating performed well in these patients, most of whom were young. As reported previously, aseptic loosening of threaded acetabular components was common.
authors.affiliation: Department of Orthopaedics, Rigshospitalet University Hospital, Copenhagen, Denmark. tineweis@dadlnet.dk
authors.forename: Steffen
authors.initials: S
authors.lastname: Jacobsen
authors.forename: Frank Krieger
authors.initials: FK
authors.lastname: Jensen
authors.forename: Klaus
authors.initials: K
authors.lastname: Poulsen
authors.forename: Jens
authors.initials: J
authors.lastname: Stürup
authors.forename: Jens B
authors.initials: JB
authors.lastname: Retpen
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D001843:Bone Cements; D020099:Coated Materials, Biocompatible; D016001:Confidence Intervals; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000503:physiopathology / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D011474:Prosthesis Design; D011475:Prosthesis Failure; D016059:Range of Motion, Articular / Q000502:physiology*; D020127:Recovery of Function; D012189:Retrospective Studies; D018570:Risk Assessment; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements; D020099:Coated Materials, Biocompatible; D014025:Titanium