2013, Number 2
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Acta Ortop Mex 2013; 27 (2)
Use of trabecular metal in total knee arthroplasty in severely and morbidly obese patients (BMI > 35 kg/m2)
Núñez FA, Argüelles AA, Lozano LL, Popescu D, Maculé F, Suso V-S
Language: Spanish
References: 31
Page: 97-102
PDF size: 89.67 Kb.
ABSTRACT
The use of trabecular metal in the
tibial surface may increase prosthetic survival in
the population with severe or morbid obesity (BMI
> 35 kg/m
2). A prospective, descriptive study was
conducted of patients with a BMI > 35 kg/m
2 who
underwent total knee replacement with a prosthesis
with trabecular metal. Minimal follow-up
was two years. The statistical analysis was done
with Student’s t test; the Knee Society Score and
the Western Ontario and McMaster Universities
Osteoarthritis Index were applied preoperatively
and postoperatively. The χ
2 test was applied to the
BMI values relating them with more or less radiolucent
images. The total number of patients was 39,
but three were excluded for not having the radiographic
follow-up. Mean follow-up was 34 months
(25-43); 35 were females, mean age was 69.4 years
(57-81), mean BMI was 39.43 kg/m2 (35-55). All
patients had grades 3 and 4 tricompartmental arthrosis.
The KSS (R and F) and WOMAC scales,
with a 95% confi dence interval, showed a statistically
significant improvement in the assessment of
preoperative results and at the end of the followup.
Only a few studies measure long-term implant
survival. Most authors define survival as the absence
of the need to revise prosthetic implants. The
end point of survival is the removal or exchange
of prosthetic components. Trabecular metal (TM)
is currently used in orthopedic surgery and its
clinical applications are increasing more and more
with good results.
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