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Bioactive cement or ceramic/porous coating vs. Conventional cement to obtain early stability of the acetabular cup Randomised study of 96 hips followed with radiostereometry
Author(s) -
Digas Georgios,
Thanner Jonas,
Anderberg Christian,
Kärrholm Johan
Publication year - 2004
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1016/j.orthres.2003.09.012
Subject(s) - radiodensity , cement , medicine , fixation (population genetics) , dentistry , initial stability , implant , surgery , orthodontics , materials science , composite material , radiography , population , environmental health
Abstract Ninety patients (96 hips) scheduled for THA were stratified to fixation of the acetabular component in three main groups of about equal size. Fluoride cement, porous coated press‐fit cup with ceramic coating or Palacos cum Gentamicin cement were used. All patients received Spectron EF stem. The migration of the cups and the femoral head penetration into the socket were measured with radiostereometric analysis. At 2 years the choice of fixation did not influence the migration or rotation of the cup. Patients with compromised bone quality showed increased three‐dimensional (3D or total) migration. Proximal and 3D penetration rates were increased in cemented compared with the uncemented cups ( p < 0.001), which probably not could be related to the choice of fixation. Appearance of radiolucent lines was almost equal in the two cemented groups. Uncemented cups had less radiolucent lines at 2 years. Fluoride containing cement or uncemented fixation did not improve the early postoperative stability of the socket. © 2004 Orthopaedic Research Society. Published by Elsevier Ltd. All rights reserved.