Palacos compared to Palamed bone cement in total hip replacement: a randomized controlled trial

Abstract

Background and purposeStability and survival of cemented total hip prostheses is dependent on a multitude of factors, including the type of cement that is used. Bone cements vary in viscosity, from low to medium and high. There have been few clinical RSA studies comparing the performance of low- and high-viscosity bone cements. We compared the migration behavior of the Stanmore hip stem cemented using novel low-viscosity Palamed bone cement with that of the same stem cemented with conventional high-viscosity Palacos bone cement.Patients and methodsWe performed a randomized controlled study involving 39 patients (40 hips) undergoing primary total hip replacement for primary or secondary osteoarthritis. 22 patients (22 hips) were randomized to Palacos and 17 patients (18 hips) were randomized to Palamed. Migration was determined by RSA.ResultsNone of these 40 hips had been revised at the 10-year follow-up mark. To our knowledge, the patients who died before they reached the 10-year endpoint still had the implant in situ. No statistically significant or clinically significant differences were found between the 2 groups for mean translations, rotations, and maximum total-point motion (MTPM).InterpretationWe found similar migration of the Stanmore stem in the high-viscosity Palacos cement group and the low-viscosity Palamed cement group. We therefore expect that the risk of aseptic loosening with the new Palamed cement would be comparable to that with the conventional Palacos cement. The choice of which type of bone cement to use is therefore up to the surgeon’s preference.

Promoting Osseointegration of Ti Implants through Micro/Nanoscaled Hierarchical Ti Phosphate/Ti Oxide Hybrid Coating

“…Nowadays, people are having a much longer life expectancy, and it is expected that people >65 years will reach 21.1% of the population by the end of 2050 . The increasing aging population has also led to a greater demand for hard tissue implants (bone and dental, in particular), as elderlies are more prone to severe musculoskeletal diseases and dental problems. − On the other hand, the demand for hard tissue implants by younger patients (<65 years) cannot be underestimated, taking into account the incidence of accidents, diseases, and the increasing demand in cosmetic surgeries.…”

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