Herrera, Antonio Mateo, Jesús Gil-Albarova, Jorge Lobo-Escolar, Antonio Ibarz, Elena Gabarre, Sergio Más, Yolanda Universal economic constraints in healthcare services dictate that further developments in total hip replacement will be governed by their cost-effectiveness.Ĭementless Hydroxyapatite Coated Hip Prostheses Computer-assisted surgery will contribute to reproducible and accurate placement of implants. Short-term objectives must not compromise long-term performance. Minimally invasive surgery limits soft-tissue damage and facilitates accelerated discharge and rehabilitation. Better materials and design have allowed use of large-bore bearings, which provide an increased range of motion with enhanced stability and very low wear. Both cemented and uncemented hips can provide durable fixation. Advances in bioengineering technology have driven development of hip prostheses. Today, young patients present for hip-replacement surgery hoping to restore their quality of life, which typically includes physically demanding activities. In the 1960s, total hip replacement revolutionised management of elderly patients crippled with arthritis, with very good long-term results. Learmonth, Ian D Young, Claire Rorabeck, Cecil The operation of the century: total hip replacement. ![]() Their revision should be a more simple operation, but this is only true for hip resurfacing, not for short stems. ![]() Both models are principally indicated in the young adult. The results in research point to the use of smaller prostheses, which use the metaphyseal zone more and less the diaphyseal zone, and hence the large number of the abovementioned short stem prostheses. Maintaining quality of life, preserving the bone and soft tissues, as well as achieving a very stable implant, are the goals of every hip orthopaedic surgeon for these patients. In addition, new information technologies contribute decisively to the preference for non-cemented prostheses. Young patients present a demand for additional activity, which makes them a serious challenge for the survival of implants. The poor results obtained in young patients when using a conventional prosthesis led to the resurgence of hip resurfacing to find less invasive implants for the bone. Gallart, X Riba, J Fernández-Valencia, J A Bori, G Muñoz-Mahamud, E Combalia, A Surface prostheses and short-stem prostheses. Further, the possible link between excessively high frictional torques and loosening is discussed in the light of current results obtained from explanted prostheses. In particular, recent developments in the use of soft layer components are highlighted. The use of simple laboratory screening-type machines in the frictional assessment of different material combinations is discussed together with experiments performed on single axis simulators using both conventional and experimental prostheses. To stimulate discussion on the role of friction in loosening, a review of the frictional characteristics of different prostheses was undertaken. PMID:25893020Īlthough the reduction of frictional torques was the driving force behind the design of the Charnley prosthesis, later concerns about wear and subsequent loosening of this and other hip replacements have dominated debate within the bioengineering community. Each of the patents presents a new design as a solution to different issues ranging from the longevity of the hip prostheses to discomfort and inconvenience experienced by patients in the long-term. The patents present various designs of prostheses, different materials as well as methods of fixation. This paper reviews several recent patents on hip replacement surgery. ![]() Nevertheless, there are still long-term problems that are essential to search and resolve to find the optimum implant. ![]() Hip surgery has become a solution for many in need of hip joint remedy and replacement across the globe. In the past five decades the advances that have been made in technology, advanced and smart materials innovations, surgical techniques, robotic surgery and methods of fixations and sterilization, facilitated hip implants that undergo multiple design revolutions seeking the least problematic implants and a longer survivorship. Hip replacement surgery has gone through tremendous evolution since the first procedure in 1840. Recent Patents and Designs on Hip Replacement Prostheses
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