title: The S-ROM hydroxyapatite proximally-coated modular femoral stem in revision hip replacement: results of 397 hips at a minimum ten-year follow-up.
abstract: We report on 397 consecutive revision total hip replacements in 371 patients with a mean clinical and radiological follow-up of 12.9 years (10 to 17.7). The mean age at surgery was 69 years (37 to 93). A total of 28 patients (8%) underwent further revision, including 16 (4%) femoral components. In all 223 patients (56%, 233 hips) died without further revision and 20 patients (5%, 20 hips) were lost to follow-up. Of the remaining patients, 209 (221 hips) were available for clinical assessment and 194 (205 hips) for radiological review at mean follow-up of 12.9 years (10 to 17.7). The mean Harris Hip Score improved from 58.7 (11 to 92) points to 80.7 (21 to 100) (p < 0.001) and the mean Merle d'Aubigné and Postel hip scores at final follow-up were 4.9 (2 to 6), 4.5 (2 to 6) and 4.3 (2 to 6), respectively for pain, mobility and function. Radiographs showed no lucencies around 186 (90.7%) femoral stems with stable bony ingrowth seen in 199 stems (97%). The survival of the S-ROM femoral stem at 15 years with revision for any reason as the endpoint was 90.5% (95% confidence interval (CI) 85.7 to 93.8) and with revision for aseptic loosening as the endpoint 99.3% (95% CI 97.2 to 99.8). We have shown excellent long-term survivorship and good clinical outcome of a cementless hydroxyapatite proximally-coated modular femoral stem in revision hip surgery.
authors.affiliation: Mater Clinic, Specialist Orthopaedic Group, Suite 1.08, Level 1, 3-9 Gillies Street, Wollstonecraft, New South Wales, 2088, Australia.
authors.forename: A M
authors.initials: AM
authors.lastname: Imbuldeniya
authors.affiliation: Mater Clinic, Specialist Orthopaedic Group, Suite 1.08, Level 1, 3-9 Gillies Street, Wollstonecraft, New South Wales, 2088, Australia.
authors.forename: W K
authors.initials: WK
authors.lastname: Walter
authors.affiliation: Mater Clinic, Specialist Orthopaedic Group, Suite 1.08, Level 1, 3-9 Gillies Street, Wollstonecraft, New South Wales, 2088, Australia.
authors.forename: B A
authors.initials: BA
authors.lastname: Zicat
authors.affiliation: Mater Clinic, Specialist Orthopaedic Group, Suite 1.08, Level 1, 3-9 Gillies Street, Wollstonecraft, New South Wales, 2088, Australia.
authors.forename: W L
authors.initials: WL
authors.lastname: Walter
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000379:methods; D020099:Coated Materials, Biocompatible; D015331:Cohort Studies; D016001:Confidence Intervals; D017886:Durapatite / Q000494:pharmacology*; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design / Q000379:methods*; D011475:Prosthesis Failure; D016059:Range of Motion, Articular / Q000502:physiology; D012086:Reoperation / Q000379:methods / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite
keywords: Cementless; Clinical outcome; Hip; Modular; Revision; Total hip arthroplasty