title: Second-Generation Versus First-Generation Cementless Tapered Wedge Femoral Stems.
abstract: Clinical outcomes of a new second-generation proximally coated, tapered wedge cementless stem were compared with those of its predecessor regarding (1) all-cause implant survivorship; (2) objective and subjective outcomes; (3) complications; and (4) radiographic features. Patients who underwent a primary total hip arthroplasty with the second-generation stem (68 hips) were compared with those who received the first-generation stem (136 hips) at a mean follow-up of 3.5 years. Although the first-generation stem was designed in the traditional manner, the second-generation stem was shortened to accommodate all surgical approaches and designed using a computed tomography scan-based database to enhance fit. The second-generation stem had survivorship, functional, and subjective outcomes similar to those of the first-generation stem.
authors.forename: Todd P
authors.initials: TP
authors.lastname: Pierce
authors.forename: Julio J
authors.initials: JJ
authors.lastname: Jauregui
authors.forename: Bhaveen H
authors.initials: BH
authors.lastname: Kapadia
authors.forename: Randa K
authors.initials: RK
authors.lastname: Elmallah
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Cherian
authors.forename: Steven F
authors.initials: SF
authors.lastname: Harwin
authors.forename: Michael A
authors.initials: MA
authors.lastname: Mont
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D005269:Femur / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery; D011446:Prospective Studies; D011474:Prosthesis Design; D011475:Prosthesis Failure; D016896:Treatment Outcome