title: The use of a "rim cutter" device and a flanged cup for improving the mantle of the acetabular component of a cemented Exeter total hip arthroplasty.
abstract: A retrospective study was performed to evaluate the cement mantle in two groups of patients treated with the acetabular components of cemented Exeter total hip arthroplasties (THAs). Two groups of 20 patients were compared: Group 1 received non-flanged acetabular cemented cups (Contemporary, Stryker) and Group 2 received flanged acetabular cemented cups (X3 Rim Fit, Stryker). Cups in Group 2 were implanted after using a rim cutter device. Group 2 showed better penetration of cement in zone 1 (10.76 mm compared with 2.93 mm; p = 0.008) and a thicker cement mantle in zone 1 (3.57 mm compared with 2.89 mm; p = 0.04). More cups in Group 2 had a cement mantle thickness less than 3 mm (30 % in Group 1 compared with 70 % in Group 2; p = 0.0039). No other radiological differences were observed. These results favor the use of a rim cutter device and flanged cup to improve the cement mantle for the acetabular components of cemented Exeter THAs. However, the improvements were less than expected. In view of the results of previous studies, further research is therefore needed to assess the value of this approach in improving the acetabular cement mantle.
authors.affiliation: Hip Unit, Department of Orthopedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Jenaro Ángel
authors.initials: JÁ
authors.lastname: Fernández-Valencia
authors.affiliation: Hip Unit, Department of Orthopedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Xavier
authors.initials: X
authors.lastname: Gallart
authors.affiliation: Hip Unit, Department of Orthopedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Guillem
authors.initials: G
authors.lastname: Bori
authors.affiliation: Hip Unit, Department of Orthopedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain. jenarofv@clinic.ub.es.
authors.forename: Juan Miguel
authors.initials: JM
authors.lastname: Rodríguez-Roiz
authors.affiliation: Hip Unit, Department of Orthopedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Andreu
authors.initials: A
authors.lastname: Combalia
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D001843:Bone Cements / Q000627:therapeutic use; D002484:Cementation / Q000009:adverse effects / Q000379:methods; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D010043:Outcome and Process Assessment, Health Care; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology; D011474:Prosthesis Design; D011859:Radiography / Q000379:methods; D012189:Retrospective Studies; D013030:Spain
chemical_list: D001843:Bone Cements
keywords: Cement; Cement mantle; Cup; Rim cutter; Total hip arthroplasty