Does use of a "rim cutter" improve quality of cementation of the acetabular component of cemented exeter total hip arthroplasty?
A randomized controlled trial was performed to assess the effect of a rim cutter device on cement mantles in modern elective total hip arthroplasty using a flanged acetabular component. Forty patients were randomized to a rim cutter (21) or control (19) group. A statistically significant improvement in cement penetration was demonstrated in zone 1 (10.1 vs 8.6 mm, P = .023), and in cement mantle thickness in zones 2 and 3 (7.8 and 6.7 mm vs 5.7 and 5.4 mm [P < .001 and P = .017]), with a reduced incidence of bottoming out of the socket (1/21 vs 8/19 [P = .007]). Cement mantle thicknesses greater than 8 mm were achieved more consistently in the rim cutter group (30% vs 2%). This technique improves cement penetration and mantle thickness in a reliable manner.
Conroy
Jonathan L
JL
Orthopaedic Research Unit, The Prince Charles Hospital, Queensland, Australia.
Chawda
Mayur
M
Kaushal
Rishi
R
Whitehouse
Sarah L
SL
Crawford
Ross W
RW
English
Hugh
H
D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D001843:Bone Cements; D005260:Female; D006622:Hip Prosthesis / Q000592:standards; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D011787:Quality of Health Care; D011859:Radiography; D016896:Treatment Outcome
D001843:Bone Cements