PubMed · 154710
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P Chambat, C Nourrissat, P Poppon, H Dejour. 1978. [Total hip prosthesis with lowering and bony support].. https://pubmed.ncbi.nlm.nih.gov/154710/
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In conclusion, based on our experimental and clinical material and analysis of failures, we recommend wire mesh reinforcement and bone graft for patients with mild to moderate protrusio. If the floor is strong but the pillars deficient, then the Eichler ring alone is the best implant. The combined system of wire mesh and Eichler ring should be used in cases of protrusion with a large deficiency of the acetabular floor and for protrusio with pillar weakness. Furthermore a bone graft should be used to reinforce the acetabular floor in addition to any prosthetic device.
To elucidate the role of mechanical factors in the etiology of osteoarthritis, the detailed geometry of the weight-bearing cartilage layer over the human hip socket is compared with the corresponding pressure distribution. The shape of the pressure distribution is strongly correlated with the shape of the cartilage compression distribution.
Not only the high risk of necrobiotic alterations in the acetabulum fragment, but more important the osteoarthritic signs and pains very few years after tripleosteotomy are cogent arguments against this measure. The bad results of tripleosteotomy are well explained by simple biomechanic causes.