title: Primary cementless total hip arthroplasty using a modular femoral component: a minimum 6-year follow-up.
abstract: We evaluated 59 hips that underwent a primary total hip arthroplasty using an S-ROM modular femoral component at a mean follow-up of 101 months (range, 72-145 months). All cases showed radiographic evidence of bone ingrowth, and there were no femoral revisions for aseptic loosening. The Harris hip score improved from a mean of 40 preoperatively to 89 at final follow-up. Some degree of proximal femoral disuse atrophy from stress shielding occurred in 46 hips (78%), and some degree of femoral osteolysis occurred in 25 hips (42%). Only additional follow-up will reveal whether there is a consequence of both types of proximal femoral bone loss.
authors.affiliation: Division of Orthopaedic Surgery, McGill University, and the Jo Miller Orthopaedic Research Laboratory, Montreal, Quebec, Canada. mtanz@canada.com
authors.forename: M
authors.initials: M
authors.lastname: Tanzer
authors.forename: S
authors.initials: S
authors.lastname: Chan
authors.forename: C E
authors.initials: CE
authors.lastname: Brooks
authors.forename: J D
authors.initials: JD
authors.lastname: Bobyn
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D020099:Coated Materials, Biocompatible; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D011859:Radiography; D016896:Treatment Outcome
chemical_list: D020099:Coated Materials, Biocompatible