This document is not irauod to the gmoral public, and all ri&ta are rm8orvad by tha World Health Organization WHO). Tha document may not bo reviwod, abrtractad, quoted raproducod or tranalatod. in part or in wholo, without tha prior writtan pandasion of WEO. No put of this document may ba atorod in a rrtriwal ryatam or tranamittad in any form or by any maans l hctronic, machanical or othar with...

291 The terminal hinge axis (THA) is the axis around which the mandible rotates when the mandible is in centric relation. The purpose of facebow is to record the patients THA and transfer it to the articulator so that it coincides with the arc of closure/hinge axis of the articulator. When the THA coincides with the hinge axis of the articulator, it is presumed that the restorations will be fre...

BACKGROUND Hip arthroplasties is one of the most frequent surgical procedures in Spain and are conducted mainly in elderly subjects. We aim to analyze changes in incidence, co-morbidity profile, length of hospital stay (LOHS), costs and in-hospital mortality (IHM) of patients undergoing primary total hip arthroplasty (THA) over an 8-year study period in Spain. METHODS We selected all surgical...

BACKGROUND Total hip arthroplasty (THA) for severe developmental dysplasia of the hip (DDH) is a technically demanding procedure for arthroplasty surgeons, and it is often difficult to reduce the hip joint without soft tissue release due to severe flexion contracture. We performed two-stage THAs in irreducible hips with expected lengthening of the affected limb after THA of over 2.5 cm or with ...

BACKGROUND Inconsistent findings of weight change following total knee (TKA) and hip (THA) arthroplasty may largely be attributable to heterogeneous cohorts and varied definitions of weight loss. This study examined weight change following TKA and THA for osteoarthritis (OA). METHODS 64 participants with hip or knee OA were recruited from orthopaedic joint arthroplasty waiting lists at a sing...

BACKGROUND AND PURPOSE Data from the national joint registries in Australia and England and Wales have revealed inferior medium-term survivorship for metal-on-metal (MoM) total hip arthroplasty (THA) than for metal-on-polyethylene (MoP) THA. Based on data from the Nordic Arthroplasty Register Association (NARA), we compared the revision risk of cementless stemmed THA with MoM and MoP bearings a...

OBJECTIVES Hips with metal-on-metal total hip arthroplasty (MoM THA) have a high rate of adverse local tissue reactions (ALTR), often associated with hypersensitivity reactions. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) measures tissue perfusion with the parameter Ktrans (volume transfer constant of contrast agent). Our purpose was 1) to evaluate the feasibility of DCE-MRI ...

OBJECTIVES To determine whether the use of total hip arthroplasty (THA) among individuals with a displaced intracapsular fracture of the femoral neck is based on national guidelines or if there are systematic inequalities. DESIGN Observational cohort study using the National Hip Fracture Database (NHFD). SETTING All hospitals that treat adults with hip fractures in England, Wales, and North...

BACKGROUND Poor pain and function outcomes are undesirable after an elective surgery such as total hip or knee arthroplasty (THA/TKA). Recent studies have indicated that the presence of contralateral joint influences outcomes of THA/TKA, however the impact of ipsilateral knee/hip involvement on THA/TKA outcomes has not been explored. The objective of this study was to assess the association of ...

IMPORTANCE The combination of an aging population, growing number of medical interventions, and surging economic burden of health care has renewed interest in reevaluating and exploring new health care models. OBJECTIVES To compare the performance of the US and Canadian health care systems by assessing major complications following primary total hip arthroplasty (THA) and total knee arthropla...