Texture analysis of trabecular bone around RM-Pressfit cementless acetabulum in a series of 46 patients during a 5 year period - 07/11/19
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Graphical abstract |
Abstract |
Background |
Cementless total hip arthroplasty (THA) is a common procedure producing excellent clinical results. Their long-term survival is nevertheless burdened by loosening of the acetabular part caused by changes in the distribution of strains around the cup. In this context the RM-Pressfit® cup has been developed, resulting in a more harmonious distribution of the strains.
Hypothesis |
Texture analysis of X-ray films can evaluate the evolution of trabecular bone micro-architecture during the five years following THA with a RM-Pressfit® cup.
Material and method |
A monocentric series of 46 hips was reviewed regularly within five years post- surgery. Radiographic evaluation of the operated hip was done on frontal digitized radiographs of the pelvis to follow evolution of bone micro-architecture in the #2 zone of De Lee and Charnley. Texture analysis using fractal algorithms was done at D0, 6 months, 1, 2 and 5 years post-THA. The fractal methods used included the skyscrapers and the dynamic blanket methods with 3 different structuring elements (a cross, a horizontal and a vertical vector).
Results |
The RM-Pressfit® caused significant changes in the distribution of strains around the acetabulum that preserved the bone volume over a 5-year period post-surgery. This corresponds to an improvement of the trabecular micro-architecture around the acetabular cups.
Conclusion |
A statistically significant increase in the four fractal dimensions considered corresponded to an improved trabecular bone micro-architecture revealed by texture analysis, a non-invasive method that can be used on digitized X-ray images.
Level of evidence |
IIIb, Case control study, retrospective design.
El texto completo de este artículo está disponible en PDF.Keywords : Total hip arthroplasty, RM-Pressfit® acetabulum, Bone micro-architecture, Texture analysis
Esquema
Vol 105 - N° 7
P. 1283-1287 - novembre 2019 Regresar al número
Artículo precedente
- Patient satisfaction in different approaches for total hip arthroplasty
- Annick den Daas, Evelien A. Reitsma, Bas A.S. Knobben, Bas L.E.F. Ten Have, Matthijs P. Somford
- Long-term survival of hybrid total hip arthroplasty with the uncemented CLS cup, cemented Müller cobalt-chromium stem, and 28-mm Metasul™ bearings: Retrospective review of 115 hips after a minimum of 17.8 years
- Roger Erivan, Guillaume Villatte, Thibaut Lecointe, Aurélien Mulliez, Stéphane Descamps, Stéphane Boisgard
Bienvenido a EM-consulte, la referencia de los profesionales de la salud.