title: Nineteen year results of THA using modular 9 mm S-ROM femoral component in patients with small femoral canals.
abstract: A retrospective analysis was undertaken of 30 consecutive THA performed in 25 patients with hypoplastic proximal femurs, who had received a 9-mm uncemented modular S-ROM stem. The mean patient age was 42 years (17-69 years), mean height was 152.5 cm (130-170.5 cm), mean weight was 63 kg (39-90 kg), and mean follow-up period was 19 years (range, 12-23 years). Subsidence was seen in 2 hips, with asymptomatic femoral osteolysis present in 11 hips; overall survival of the femoral stem was 93.3%, with two revisions of the femoral component required for aseptic loosening. After a mean follow-up of 19 years, the use of the S-ROM 9 mm femoral stem in the patient with the small femur was associated with a low revision rate due to aseptic loosening of the stem.
authors.affiliation: Holland Orthopaedic and Arthritic Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
authors.forename: Michael
authors.initials: M
authors.lastname: Drexler
authors.forename: Tim
authors.initials: T
authors.lastname: Dwyer
authors.forename: Meir
authors.initials: M
authors.lastname: Marmor
authors.forename: Mansour
authors.initials: M
authors.lastname: Abolghasemian
authors.forename: Rajesh
authors.initials: R
authors.lastname: Chakravertty
authors.forename: Ofir
authors.initials: O
authors.lastname: Chechik
authors.forename: Hugh U
authors.initials: HU
authors.lastname: Cameron
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D055815:Young Adult
keywords: S-ROM; small femur; total hip