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Online ISSN 1827-1707
Devecchi A., Truong Q. T., Serracchioli R., Ghiggio P.
Ospedale Civile di Ivrea - ASLTO4, Ivrea, Italia
AIM: After a brief overview of the literature about the implant of costrained liner, we examine our experience with this acetabular cup in the elderly affected by femoral neck fracture, showing the advantages of this type of implants.
METHODS: We examined the patients, of an age equal or greater than 80 years old with femoral neck fracture, treated with the cemented constrained acetabular cup Lefevre (Groupe Lepine, Genay, France), in the period between 2003 and 2011. We implanted 458 constrained acetabular cup, in 443 patients. The mean age was 86.2 years (range 80-101). The ratio of males to females was 1 to 4.
RESULTS: The mortality was 38.5% at 1 year, 59.1% at 5 years. The observed complications was the following: 6 dislocations (1.4%), 3 aseptic loosenings (0.7%), 3 infections (0.7%). In our experience this type of implant showed to be safe. The constrained cup reduced the number of dislocations in this particular group of patients, contemporary we didn’t observe a significant number of loosenings. Our hypothesis is that these low demand patients are not able to stress significantly the bone-cement interface.
CONCLUSION: In our opinion a total hip arthroplasty with a constrained liner is an effective alternative to hemiarthroplasty in the elderly with femoral neck fracture.