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Prevalence of a soft-tissue lesion after small head metal-on-metal total hip replacement: 13-to 19-year follow-up study

Title
Prevalence of a soft-tissue lesion after small head metal-on-metal total hip replacement: 13-to 19-year follow-up study
Author
김영호
Keywords
ASYMPTOMATIC PATIENTS; ARTHROPLASTY; PSEUDOTUMORS; POLYETHYLENE; ORIENTATION; DISLOCATION; PROSTHESES; COMPONENT; BEARINGS; FAILURE
Issue Date
2014-12
Publisher
BRITISH EDITORIAL SOC BONE JOINT SURGERY
Citation
BONE & JOINT JOURNAL, 96B(12), p.1594-1599
Abstract
We investigated the incidence of soft-tissue lesions after small head metal-on-metal total hip replacement (MoM THR). Between December 1993 and May 1999, 149 patients (195 hips) underwent primary cementless MoM THR.During the follow-up period, three patients (five THRs) died and eight patients (14 THRs) were lost to follow-up. We requested that all patients undergo CT evaluation. After exclusion of five patients (six THRs) who had undergone a revision procedure, and 22 (28 THRs) who were unwilling to take part in this study, 111 patients (142 THRs) were evaluated. There were 63 men (88 THRs) and 48 women (54 THRs) with a mean age of 45.7 years (37 to 56) at the time of surgery. The mean follow-up was 15.4 years (13 to 19). A soft-tissue lesion was defined as an abnormal peri-prosthetic collection of fluid, solid lesion or asymmetrical soft-tissue mass.At final follow-up, soft-tissue lesions were found in relation to 28 THRs (19.7%), including 25 solid and three cystic lesions. They were found in 20 men and eight women; 26 lesions were asymptomatic and two were symptomatic. The mean maximal diameter of the soft-tissue lesion was 42.3 mm (17 to 135). The relatively high rate of soft-tissue lesions observed with small head MoM THR remains a concern.
URI
https://online.boneandjoint.org.uk/doi/abs/10.1302/0301-620X.96B12.33705http://hdl.handle.net/20.500.11754/53461
ISSN
2049-4394
DOI
10.1302/0301-620X.96B12.33705
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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