Published in:
01-05-2015 | Hip Arthroplasty
Short-stem hip arthroplasty in osteonecrosis of the femoral head
Authors:
Thilo Floerkemeier, Stefan Budde, Jens Gronewold, Kerstin Radtke, Max Ettinger, Henning Windhagen, Gabriela von Lewinski
Published in:
Archives of Orthopaedic and Trauma Surgery
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Issue 5/2015
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Abstract
Introduction
Osteonecrosis of the femoral head (ONFH) is a locally destructive and complex disorder. Without treatment, infraction of the femoral head is likely. There is also a lack of consensus in the literature about the most appropriate arthroplasty method in patients with progressive ONFH. During the last decade, the number of short-stem prostheses has increased. Some short-stem designs have a metaphyseal anchorage. It is questionable whether ONFH represents a risk factor for failure after implantation of short stems. The aim of this study was to review existing literature regarding the outcome of short-stem arthroplasty in ONFH and to present the pros and cons of short-stem hip arthroplasty in osteonecrosis of the femoral head.
Materials and methods
This review summarises existing studies on short-stem hip arthroplasty in osteonecrosis of the femoral head.
Results
Few studies have analysed the clinical and radiological outcome of short-stem THA in patients with ONFH. Only a handful of studies present clinical and radiological outcome after implantation of a short-stem arthroplasty in patients with the underlying diagnosis of osteonecrosis of the femoral head.
Conclusion
The short- to medium-term results show predominantly good outcomes. However, due to differences in the design of short stems and their fixation, it is hard to draw a general conclusion. Short stems with primary diaphyseal fixation do not reveal a high increased risk of failed osseointegration or loosening. For designs with a primary metaphyseal anchorage, an MRI should be conducted to exclude that the ostenecrosis exceeds the femoral neck.