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High incidence of stem loosening in association with periprosthetic femur fractures in previously well-fixed cementless grit-blasted tapered-wedge stems

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Author(s)
Seung-Jae LimKyung-Jae LeeByung-Woo MinJoo-Hyoun SongSang-Yeon SoYoun-Soo Park
Keimyung Author(s)
Min, Byung WooLee, Kyung Jae
Department
Dept. of Orthopedic Surgery (정형외과학)
Journal Title
International Orthopaedics
Issued Date
2015
Volume
39
Issue
9
Keyword
Total hip arthroplastyPeriprosthetic femurfracturesCementless grit-blasted tapered-wedge stemLoosening
Abstract
Purpose Periprosthetic femur fracture is a potentially worrisome
phenomenon for cementless stem fixation. The aim of
this study was to document the incidence of stem loosening
following periprosthetic femur fracture in previously wellfixed
cementless grit-blasted tapered-wedge stems.
Methods We identified 36 periprosthetic femur fractures of
either Vancouver B1 or B2 following hip arthroplasties using
cementless grit-blasted tapered-wedge titanium stems at three
participating institutions (GB group). The control group
consisted of 21 periprosthetic femur fractures of either Vancouver
B1 or B2 following hip arthroplasties using cementless
proximal porous-coated stems at the same institutions during
the same period of study (PC group). All femoral stems had
been in a well-fixed state before occurrence of fracture. All
patients were treated surgically and femoral stem stability was
assessed using preoperative radiographs and confirmed by
intraoperative scrutinization.
Results Seven (19.4 %) of 36 fractures were Vancouver B1
and 29 (80.6 %) were Vancouver B2 in the GB group, whereas
18 (85.7 %) of 21 fractures were Vancouver B1 and 3 (14.3 %)
were Vancouver B2 in the PC group (P < 0.0001). The odds
ratio for stem loosening was 24.86 (95 % CI, 5.69–108.63) in
the GB group versus the PC group.
Conclusions Hip arthroplasty using cementless grit-blasted
tapered-wedge titanium stems showed higher incidence of
stem loosening in association with periprosthetic femur fracture
than hip arthroplasty conducted using proximal porouscoated
stems. A high index of suspicion of stem loosening
might be necessary in periprosthetic femur fracture following
hip arthroplasty using this type of stems.
Keimyung Author(s)(Kor)
민병우
이경재
Publisher
School of Medicine
Citation
Seung-Jae Lim et al. (2015). High incidence of stem loosening in association with periprosthetic femur fractures in previously well-fixed cementless grit-blasted tapered-wedge stems. International Orthopaedics, 39(9), 1689–1693. doi: 10.1007/s00264-014-2586-5
Type
Article
ISSN
0341-2695
Source
http://lps3.link.springer.com.proxy.dsmc.or.kr/article/10.1007%2Fs00264-014-2586-5
DOI
10.1007/s00264-014-2586-5
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/32974
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학)
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