Effects of metal-on-metal wear on the host immune system and infection in hip arthroplasty.

abstract：:Background and purpose - The long-term outcome of pin-fixed supracondylar humerus fractures (SCHF) in children is not well known. We assessed the 7- to 12-year outcome in 168 children. Patients and methods - During 2002-2006, 210 domestic children (age 7 (1-14) years) with SCHF (Gartland III 79%, Gartland II 19%, and ...

journal_title：Acta orthopaedica

authors： Tuomilehto N,Sommarhem A,Nietosvaara AY

更新日期：2018-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Loss of bone stock remains a challenge in revision hip surgery. Grafting with allograft is well established, but there are problems with availability, cost, infection, antigenicity, reproducibility, and stability of the created construct. BoneSave is a biphasic porous ceramic consisting of sinter...

journal_title：Acta orthopaedica

authors： Whitehouse MR,Dacombe PJ,Webb JC,Blom AW

更新日期：2013-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Tourniquet-related nerve injuries remain a concern in orthopedic surgery. The cuff pressures used today are generally lower, and therefore a decreasing incidence of peripheral nerve injuries might also be expected. However, there have been few neurophysiological studies describing the outcome aft...

journal_title：Acta orthopaedica

authors： Olivecrona C,Blomfeldt R,Ponzer S,Stanford BR,Nilsson BY

更新日期：2013-04-01 00:00:00

abstract：:Background and purpose - Patient-specific instrumentation (PSI) for total knee arthroplasty (TKA) has been introduced to improve alignment and reduce outliers, increase efficiency, and reduce operation time. In order to improve our understanding of the outcomes of patient-specific instrumentation, we conducted a meta-...

journal_title：Acta orthopaedica

authors： Huijbregts HJ,Khan RJ,Sorensen E,Fick DP,Haebich S

更新日期：2016-08-01 00:00:00

abstract：BACKGROUND:Total hip replacement is increasingly used in active, relatively healthy elderly patients with fractures of the femoral neck. Dislocation of the prosthesis is a severe complication, and there is still controversy regarding the optimal surgical approach and its influence on stability. We analyzed factors infl...

journal_title：Acta orthopaedica

authors： Enocson A,Hedbeck CJ,Tidermark J,Pettersson H,Ponzer S,Lapidus LJ

更新日期：2009-04-01 00:00:00

abstract：:Background and purpose - Anterior knee pain is common after tibial nailing. Its origin is poorly understood. Injury of the infrapatellar nerve is a possible cause. In this randomized controlled trial we compared changes in knee pain after an infrapatellar nerve block with lidocaine or placebo in patients with persiste...

journal_title：Acta orthopaedica

authors： Leliveld MS,Kamphuis SJM,Verhofstad MHJ

更新日期：2019-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Metal artifact reduction sequence (MARS) MRI is widely advocated for surveillance of metal-on-metal hip arthroplasties (MOM-HAs). However, its use is limited by susceptibility artifact at the prosthesis-bone interface, local availability, patient compliance, and cost (Hayter et al. 2011a). We wan...

journal_title：Acta orthopaedica

authors： Robinson E,Henckel J,Sabah S,Satchithananda K,Skinner J,Hart A

更新日期：2014-12-01 00:00:00

abstract：BACKGROUND:Modern metal-on-metal hip resurfacing was introduced as a bone-preserving method of joint reconstruction for young and active patients; however, the large diameter of the bearing surfaces is of concern for potentially increased metal ion release. PATIENTS AND METHODS:71 patients (< 65 years old) were random...

journal_title：Acta orthopaedica

authors： Smolders JM,Hol A,Rijnberg WJ,van Susante JL

更新日期：2011-10-01 00:00:00

abstract：:Background and purpose - A 2-stage revision is the most common treatment for late deep prosthesis-related infections and in all cases of septic loosening. However, there is no consensus about the optimal interval between the 2 stages. Patients and methods - We retrospectively studied 120 deep infections of total hip (...

journal_title：Acta orthopaedica

authors： Janssen DM,Geurts JA,Jütten LM,Walenkamp GH

更新日期：2016-08-01 00:00:00

abstract：BACKGROUND:Hospital-specific variation in outcome is generally considered to be an important source of information for clinical improvement. We have measured the magnitude of this variation. METHODS:We determined the revision risk in 37,642 cemented primary total knee arthroplasties inserted as a result of osteoarthri...

journal_title：Acta orthopaedica

authors： Robertsson O,Ranstam J,Lidgren L

更新日期：2006-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The Knee Injury and Osteoarthritis Outcome Score (KOOS) is distinguished from other knee-specific measures by the inclusion of separate scales for evaluation of activities of daily living, sports and recreation function, and knee-related quality of life, with presentation of separate subscale sco...

journal_title：Acta orthopaedica

authors： Örtqvist M,Roos EM,Broström EW,Janarv PM,Iversen MD

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Bones used in mechanical studies are frequently harvested from human cadavers that have been embalmed in a buffered formaldehyde solution. It has been reported that formaldehyde fixation or freezing hardly affects the mechanical properties of bone after a storage period of several weeks. However,...

journal_title：Acta orthopaedica

authors： van Haaren EH,van der Zwaard BC,van der Veen AJ,Heyligers IC,Wuisman PI,Smit TH

更新日期：2008-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:We previously evaluated a new uncemented femoral stem designed for elderly patients with a femoral neck fracture and found stable implant fixation and good clinical results up to 2 years postoperatively, despite substantial periprosthetic bone mineral loss. We now present the medium-term follow-u...

journal_title：Acta orthopaedica

authors： Sköldenberg OG,Sjöö H,Kelly-Pettersson P,Bodén H,Eisler T,Stark A,Muren O

更新日期：2014-08-01 00:00:00

abstract：:Background and purpose - Psychosocial factors are important risk factors for poor outcomes in the first year after total knee replacement (TKR), however their impact on long-term outcomes is unclear. We aimed to identify preoperative psychosocial risk factors for poor outcomes at 1 year and 5 years after TKR. Patients...

journal_title：Acta orthopaedica

authors： Wylde V,Trela-Larsen L,Whitehouse MR,Blom AW

更新日期：2017-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Recent literature suggests that the incidence and treatment modalities of distal radius fractures have been changing over the past 2 decades in the developed world. We examined the epidemiology of adult distal radius fractures in Iceland in 2004 and compared it with an Icelandic study from 1985 a...

journal_title：Acta orthopaedica

authors： Sigurdardottir K,Halldorsson S,Robertsson J

更新日期：2011-08-01 00:00:00

abstract：:Background and purpose - Elderly patients may benefit from a dislocation low-risk dual-mobility (DM) articulation in total hip arthroplasty, but the best cup fixation method is unknown. We compared cup migration for cemented and cementless DM cups using radiostereometry.Patients and methods - In a patient-blinded rand...

journal_title：Acta orthopaedica

authors： Tabori-Jensen S,Mosegaard SB,Hansen TB,Stilling M

更新日期：2020-06-01 00:00:00

abstract：BACKGROUND:No data exist regarding mortality rate in young patients with a first-time anterior shoulder dislocation. A cohort of 255 patients aged 12-40 years had a primary anterior shoulder dislocation during the years 1978 and 1979. After 10 years, 9 of the patients had died--which is a high figure for this cohort of...

journal_title：Acta orthopaedica

authors： Hovelius L,Nilsson JA,Nordqvist A

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:There is continuing confusion among practitioners with regard to the optimal choice of anesthetic type for repair of hip fractures. We investigated whether type of anesthetic was associated with short-term mortality after hip fracture surgery. PATIENTS AND METHODS:We conducted a retrospective co...

journal_title：Acta orthopaedica

authors： Brox WT,Chan PH,Cafri G,Inacio MC

更新日期：2016-01-01 00:00:00

abstract：:Background and purpose - The annual number of total knee arthroplasties (TKAs) has increased worldwide in recent years. To make projections regarding future needs for primaries and revisions, additional knowledge is important. We analyzed and compared the incidences among 4 Nordic countries Patients and methods - Usin...

journal_title：Acta orthopaedica

authors： NiemeläInen MJ,MäKelä KT,Robertsson O,W-Dahl A,Furnes O,Fenstad AM,Pedersen AB,Schrøder HM,Huhtala H,Eskelinen A

更新日期：2017-04-01 00:00:00

abstract：:Background and purpose - When nonoperative treatment of proximal humerus fracture (PHF) fails, shoulder arthroplasty may be indicated. We investigated risk factors for revision and evaluated patient-reported outcome 1 year after treatment with either stemmed hemiarthroplasty (SHA) or reverse total shoulder arthroplast...

journal_title：Acta orthopaedica

authors： Mechlenburg I,Rasmussen S,Unbehaun D,Amundsen A,Rasmussen JV

更新日期：2020-06-01 00:00:00

abstract：:Background and purpose - Femoral neck preserving hip replacement has been suggested to improve clinical results and facilitate late revision. We compared the 2-year outcome and radiostereometric pattern of femoral head migration between the Collum Femoris Preserving (CFP) stem and the Corail stem. Patients and methods...

journal_title：Acta orthopaedica

authors： Klein LJ,Puretic G,Mohaddes M,Kärrholm J

更新日期：2019-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:In recent years, intramedullary nails (INs) for the treatment of pertrochanteric hip fractures have gained prominence relative to conventional, sliding hip screws (SHSs). There is little empirical background for this development, however. A previous series of ours suggested that the use of SHS wa...

journal_title：Acta orthopaedica

authors： Palm H,Lysén C,Krasheninnikoff M,Holck K,Jacobsen S,Gebuhr P

更新日期：2011-04-01 00:00:00

abstract：BACKGROUND:The mechanism of failure of metal-on-metal (MoM) total hip arthroplasty (THA) has been related to a high rate of metal wear debris, which is partly generated from the head-trunnion interface. However, it is not known whether implant fixation is affected by metal wear debris. PATIENTS AND METHODS:49 cases of...

journal_title：Acta orthopaedica

authors： Hjorth MH,Søballe K,Jakobsen SS,Lorenzen ND,Mechlenburg I,Stilling M

更新日期：2014-08-01 00:00:00

abstract：BACKGROUND:There is no consensus on the best surgical treatment of periprosthetic femoral fractures. We report our experience with a dynamic compression plate. PATIENTS AND METHODS:We reviewed the results of 18 periprosthetic femoral fractures treated with open reduction and internal fixation using the dynamic compres...

journal_title：Acta orthopaedica

authors： Tsiridis E,Narvani AA,Timperley JA,Gie GA

更新日期：2005-08-01 00:00:00

abstract：:Background and purpose - Although the use of patient-specific positioning guides (PSPGs) in total knee replacement (TKR) in theory is promising, the technique has not yet proven its superior- ity compared with the conventional method. We compared radio- logical alignment and clinical outcome between TKR performed with...

journal_title：Acta orthopaedica

authors： Van Leeuwen JAMJ,Snorrason F,Röhrl SM

更新日期：2018-02-01 00:00:00

abstract：:Background and purpose - About 86,000 total hip replacements (THR) have been registered in patients under 55 years in the National Joint Registry of England and Wales (NJR). The use of uncemented implants has increased, despite their outcomes not having been proven to be significantly better than cemented implants in ...

journal_title：Acta orthopaedica

authors： Kiran M,Johnston LR,Sripada S,Mcleod GG,Jariwala AC

更新日期：2018-04-01 00:00:00

abstract：:Background and purpose - Recent studies have revealed deficiencies in the accuracy of data from joint registries when reoperations for prosthetic joint infections (PJIs) are reported, particularly when no components are changed. We compared the accuracy of data from the New Zealand Joint Registry (NZJR) to a multicent...

journal_title：Acta orthopaedica

authors： Zhu M,Ravi S,Frampton C,Luey C,Young S

更新日期：2016-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Multimodal techniques can aid early rehabilitation and discharge of patients following primary joint replacement. We hypothesized that this not only reduces the economic burden of joint replacement by reducing length of stay, but also helps in reduction of early complications. PATIENTS AND METHO...

journal_title：Acta orthopaedica

authors： Malviya A,Martin K,Harper I,Muller SD,Emmerson KP,Partington PF,Reed MR

更新日期：2011-10-01 00:00:00

abstract：BACKGROUND AND PURPOSES:The nervous system plays an important role in bone metabolism. However, the effect of denervation on bone formation during distraction osteogenesis (DO) remains unclear. We studied neural influence on bone regeneration during DO in a rabbit model. METHODS:24 New Zealand male white rabbits under...

journal_title：Acta orthopaedica

authors： Song D,Jiang X,Zhu S,Li W,Khadka A,Hu J

更新日期：2012-08-01 00:00:00

abstract：BACKGROUND:In Legg-Calvé-Perthes disease (LCPD), 4 major patterns (coxa plana, coxa magna, coxa vara, subluxation) of the femoral head are commonly observed. However, direct observation of pathological specimens is rarely possible. An animal model of LCPD may clarify the pathogenesis of femoral head deformity. ANIMALS...

journal_title：Acta orthopaedica

authors： Rowe SM,Lee JJ,Chung JY,Moon ES,Song EK,Seo HY

更新日期：2006-02-01 00:00:00