The Journal of Bone and Joint Surgery 82:1252 (2000)
© 2000 The Journal of Bone and Joint Surgery, Inc.
Total Knee Arthroplasty After High Tibial Osteotomy
A Comparison Study in Patients Who Had Bilateral Total Knee Replacement*
John B. Meding, M.D. ,
E. Michael Keating, M.D. ,
Merrill A. Ritter, M.D. and
Philip M. Faris, M.D.
Investigation performed at The Center for Hip and Knee Surgery,
St. Francis Hospitals-Mooresville, Mooresville, Indiana
*Although none of the authors has received or will receive benefits
for personal or professional use from a commercial party related
directly or indirectly to the subject of this article, benefits
have been or will be received but are directed solely to a research
fund, foundation, educational institution, or other nonprofit organization
with which one or more of the authors is associated. Funds were
received in total or partial support of the research or clinical
study presented in this article. The funding source was Biomet Incorporated, Warsaw,
Indiana.
The Center for Hip and Knee Surgery, 1199 Hadley Road, Mooresville,
Indiana 46158.
Background: The outcome of total knee replacement
after high tibial osteotomy remains uncertain. We hypothesized that
the results of total knee replacement with or without a previous
high tibial osteotomy are similar.
Methods: The results of a consecutive series
of thirty-nine bilateral total knee arthroplasties performed with cement
at an average of 8.7 years after unilateral high tibial osteotomy
were reviewed. There were twenty-seven men and twelve women. Preoperatively,
the knee scores according to the system of the Knee Society were
similar for all of the knees; however, valgus alignment and patella
infera were more common in the knees with a previous high tibial
osteotomy. Bilateral total knee replacement was staged in seven
patients and was simultaneous in thirty-two patients. The results
of the total knee arthroplasties were retrospectively reviewed with respect
to the knee and function scores according to the system of the Knee
Society, the radiographic findings, and the complications.
Results: Intraoperatively, no notable differences
were identified in the number of medial, lateral, or lateral patellar
releases required. However, less lateral tibial bone was resected
in the group with a previous high tibial osteotomy (average, 3.3
millimeters) than in the group without a high tibial osteotomy (average,
7.5 millimeters). The average duration of follow-up was 7.5 years
(range, three to sixteen years) in the group with a previous high tibial
osteotomy and 6.8 years (range, two to ten years) in the group without
a high tibial osteotomy. At the time of the final follow-up, the
knee and function scores were similar for the two groups (89.0 and
81.0 points, respectively, for the group with a previous high tibial
osteotomy, and 89.6 and 83.9 points, respectively, for the group without
a high tibial osteotomy). Although more knees were free of pain
in the group without a previous high tibial osteotomy (thirty-six)
than in the group with a previous osteotomy (thirty-three), this
difference was not found to be significant with the numbers available
(p = 0.4810). Knee alignment and stability, femoral and tibial component alignment,
and range of motion also were similar in both groups postoperatively.
One all-polyethylene tibial component was revised in the high tibial osteotomy
group. Two knees in each group required manipulation. There were
no deep infections.
Conclusions: While patients with a previous
high tibial osteotomy may have important differences preoperatively,
including valgus alignment, patella infera, and decreased bone stock
in the proximal part of the tibia, the present study suggests that
the clinical and radiographic results of primary total knee arthroplasty
in knees with and without a previous high tibial osteotomy are not
substantially different. In our relatively small group of patients,
the previous high tibial osteotomy had no adverse effect on the
outcome of the subsequent total knee replacement.

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