title: Results of an uncemented straight femoral shaft prosthesis after 9 years of follow-up.
abstract: The first consecutive 250 implantations of an uncemented, proximally anchored straight femoral shaft prosthesis (BiCONTACT) in 236 patients are included in this prospective follow-up study. Average time of follow-up evaluation was 8.9 years (range, 7.4-10.7 years). At follow-up, 27 patients had died, and 2 could not be located. Seven patients underwent revision-2 for infection, 1 for recurrent dislocation, 2 for component undersizing with rapid subsidence, and 1 for aseptic loosening of a varus-malaligned stem; 1 radiologically well-fixed stem had been revised during acetabular revision. Overall survival was 97.1% after 11 years (confidence limits, 98.7% [upper] and 93.6% [lower]). The average Harris Hip score at time of follow-up was 84.3 points. Radiologically, tiny reactive lines (<2 mm) were present in the distal zones of the femoral shaft, but no radiolucencies could be found in the proximal anchoring zone. The midterm to long-term follow-up results with the evaluated femoral component are encouraging and are comparable to those of modern techniques of cementing in primary total hip arthroplasty.
authors.affiliation: BG Trauma Center, University of Tübingen, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Eingartner
authors.forename: R
authors.initials: R
authors.lastname: Volkmann
authors.forename: E
authors.initials: E
authors.lastname: Winter
authors.forename: F
authors.initials: F
authors.lastname: Maurer
authors.forename: G
authors.initials: G
authors.lastname: Sauer
authors.forename: S
authors.initials: S
authors.lastname: Weller
authors.forename: K
authors.initials: K
authors.lastname: Weise
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods; D001843:Bone Cements; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008875:Middle Aged; D011182:Postoperative Care; D011446:Prospective Studies; D011474:Prosthesis Design; D011475:Prosthesis Failure; D016019:Survival Analysis; D014025:Titanium
chemical_list: D001843:Bone Cements; D014025:Titanium