The Cemented Unipolar Prosthesis for the Management of Displaced Femoral Neck Fractures in the Dependent Osteopenic Elderly.

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Abstract

[Indexed for MEDLINE] 12. Acta Chir Orthop Traumatol Cech. 2017;84(3):208-210. Cementless Total Hip Arthroplasty in Primary Myelofibrosis - a Case Report. [Article in English] Brodt S(1), Eigendorff E, Matziolis G. Author information: (1)Klinik für Orthopädie, Friedrich-Schiller Universität Jena, Campus Eisenberg, Eisenberg, Germany. There is a great deal of data available, in part contradictory, on the best fixation technique to use for total hip arthroplasty (THA) in hip osteoarthritis. Both the cementless and the cemented versions offer excellent long-term outcomes - if the respective technique is applied correctly. However, as far as we know, no recommendation has been made regarding cemented vs. cementless THA in primary myelofibrosis. The case described here concerns a very active 76-year-old patient with primary myelofibrosis. This is a rare hematological disease. It develops from clonal hematopoiesis with impaired blood formation and progressive bone marrow fibrosis. An MRI scan of the patients pelvis showed a marked spotted change over all of the imaged bone. Ultimately, in preoperative planning we decided in favor of a proven cementless implant (Allofit Alloclassic cup and the CLS Spotorno stem from Zimmer). Complication-free osseous integration of the cementless implants was observed. Histologic analysis of the bone showed a focally sclerotically altered bone structure. Neither osteoporosis nor osteopenia were found. In our opinion, taking into account all other indication criteria, there is no reason not to perform a cementless THA implantation in the presence of primary myelofibrosis. Key words: hip, primary myelofibrosis, cementless, THA, total hip replacement.