title: Two-year to five-year follow-up of femoral defects in femoral revision treated with the link MP modular stem.
abstract: Femoral deficiency has been shown to adversely affect the results of revision total hip arthroplasty. Tapered titanium modular stems allow distal fixation of the fluted, conical portion of the implant in the setting of proximal bone loss. One hundred two consecutive hips with proximal bone loss underwent revision femoral reconstruction between 1998 and 2002 at 3 centers using the Link MP modular stem. Forty-three hips had Mallory type 3C femoral deficiency. Ninety-seven hips were observed for an average of 45 months (range, 24-72; median, 36 months). Clinically, mean Harris hip score improved from 36 to 84 (range, 54-99). Radiographically, 93 hips were considered stable, with no circumferential lucencies at the distal fixation surface. Three hips migrated and required revision, along with one periprosthetic fracture. Five other hips had nonprogressive migration of 1 to 2 mm.
authors.affiliation: Ranawat Orthopedic Center, Lenox Hill Hospital, New York City, New York 10021, USA.
authors.forename: Jose A
authors.initials: JA
authors.lastname: Rodriguez
authors.forename: Robert
authors.initials: R
authors.lastname: Fada
authors.forename: Steven B
authors.initials: SB
authors.lastname: Murphy
authors.forename: Vijay J
authors.initials: VJ
authors.lastname: Rasquinha
authors.forename: Chitranjan S
authors.initials: CS
authors.lastname: Ranawat
mesh_terms: D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000379:methods; D001672:Biocompatible Materials; D001862:Bone Resorption / Q000209:etiology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D014025:Titanium
chemical_list: D001672:Biocompatible Materials; D014025:Titanium