Department of Surgery, Albany Health Campus, Albany, Australia
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Department of Surgery, Université de Montréal, Montréal, Québec, Canada
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. Currently, two factors may compromise this achievement: hip range of motion (ROM) restrictions and hip instability. One option addressing these two problems is the dual mobility (DM) articulation. This very old French invention, used since 1974 by Gilles
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summarized in this review, but the goal is not to add another review article to this topic but rather to focus on the question: How big is the taper corrosion problem currently in a representative setting in Germany after the removal of the most endangered
Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden
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Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden
The Swedish Hip Arthroplasty Register, Gothenburg, Sweden
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as intra-prosthetic dislocation. Today, in many countries, there is, however, an increased interest in and greater use of DMC to address the dislocation problem. Highly cross-linked polyethylene liners or cups articulating against metallic or
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to the unsuccessful ‘closed’ reduction of the fracture) were encountered. The problems were attributed to the broadness of the metaphyseal areas that cannot contain the nail firmly and additionally to the attachments of ligaments and tendons that act
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rheumatology advice as they have been shown to increase the risk of wound breakdown. 3 Our review revealed only one case of superficial wound infection post-operatively. Although the overall rate is low (0.9%), wound problems can threaten the underlying
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repair. 53 The ideal treatment of borderline developmental dysplastic hip (BDDH) is currently a subject of controversy. It is paramount to understand the underlining problem of the individual hip and distinguish instability (dysplasia) from FAI as
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Introduction Surgical correction of idiopathic developmental dysplasia of the hip (DDH) is one of the most challenging problems in pediatric orthopedic surgery. The treatment goal is to achieve a stable, congruent and concentric hip joint as
Division of Orthopaedics and Trauma Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
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Faculty of Medicine, University of Berne, Berne, Switzerland
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tip ( 101 , 102 , 104 ). The long-term results of the Lord and AML stems and the problems encountered at revision led to the creation of the TriLock stem, introduced in 1981 ( 105 ). The porous coating was limited to the proximal area, in order to
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Modular neck (MN) implants can restore the anatomy, especially in deformed hips such as sequelae of development dysplasia.
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Early designs for MN implants had problems with neck fractures and adverse local tissue, so their use was restricted to limited indications.
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Results of the latest generation of MN prostheses seem to demonstrate that these problems have been at least mitigated.
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Given the results of the studies presented in this review, surgeons might consider MN total hip arthroplasty (THA) for a narrower patient selection when a complex reconstruction is required.
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Long MN THA should be avoided in case of body mass index > 30, and should be used with extreme caution in association with high offset femoral necks with long or extra-long heads. Cr-Co necks should be abandoned, in favour of a titanium alloy connection.
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Restoring the correct anatomic femoral offset remains a challenge in THA surgeries.
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MN implants have been introduced to try to solve this problem. The MN design allows surgeons to choose the appropriate degree and length of the neck for desired stability and range of motion.
Cite this article: EFORT Open Rev 2021;6:751-758. DOI: 10.1302/2058-5241.6.200064
Service de Chirurgie Orthopédique, Traumatologie et Chirurgie Réparatrice des Membres, Hôpital d’Instruction des Armées Percy, France
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trauma of the hip. 3 In some cases local trauma and neurologic trauma are associated. Luckily, most of our cases were not associated with local trauma of the hip, where significant ossification of the hip associated with consolidation problems may
