Migration of the uncemented CLS femoral component.
The migration of uncemented CLS (Cementless Total Hip Replacement System) femoral stems was measured retrospectively from standard anteroposterior pelvic radiographs using a digitizer and software specifically designed for this study. The study population was comprised of 117 patients with 126 uncemented CLS femoral stems. All radiographs were reviewed and the incidence of thigh pain obtained by means of a questionnaire. The mean clinical follow-up was 3 years and the mean follow-up for radiographic review was 2.77 years. The mean femoral stem migration was 2 mm at 2 years and 3.66 mm at 7 years. Radiographic features varied little with no specific predictive features in patients with excessive early migration or those who complained of thigh pain. There was no statistical relationship between the presence of thigh pain and femoral stem migration.
Department of Orthopedic Surgery, Kingston Hospital NHS Trust, Kingston upon Thames, Surrey, United Kingdom.
M S
MS
Davies
B C
BC
Parker
D A
DA
Ward
J
J
Hua
P S
PS
Walker
D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000295:instrumentation; D001843:Bone Cements; D005260:Female; D005269:Femur; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging* / Q000209:etiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012189:Retrospective Studies; D013848:Thigh; D013997:Time Factors
D001843:Bone Cements