In vitro comparison of frictional torque and torsional resistance of aged conventional gamma-in-nitrogen sterilized polyethylene versus aged highly crosslinked polyethylene articulating against head sizes larger than 32 mm.

abstract：:Background and purpose - Discharge on the day of surgery (DOS) in selected patients operated with total hip arthroplasty (THA) or total knee arthroplasty (TKA) has been shown to be feasible, but different factors may determine whether patients are discharged on the DOS or not and setting may be one of them. We investi...

journal_title：Acta orthopaedica

authors： Husted C,Gromov K,Hansen HK,Troelsen A,Kristensen BB,Husted H

更新日期：2020-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:There are limited population-based data on utilization, outcomes, and trends in total knee arthroplasty (TKA). The purpose of this study was to examine TKA utilization and short-term outcomes in a pre-paid health maintenance organization (HMO), and to determine whether rates and revision burden c...

journal_title：Acta orthopaedica

authors： Khatod M,Inacio M,Paxton EW,Bini SA,Namba RS,Burchette RJ,Fithian DC

更新日期：2008-12-01 00:00:00

abstract：BACKGROUND:We have previously reported that 6 months of oral treatment with clodronate reduced the migration of the NexGen total knee prosthesis during the first postoperative year, as measured by radiostereometry (RSA). We now report the 4-year results. METHODS:This was a double-blind randomized study, using RSA with...

journal_title：Acta orthopaedica

authors： Hilding M,Aspenberg P

更新日期：2006-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Symptomatic treatment of osteoarthritis of the knee with leeches is presently undergoing a renaissance. Previous studies have shown methodical weaknesses. In the present study patients were blinded regarding the treatment, and a control group was included to explore possible differences in variou...

journal_title：Acta orthopaedica

authors： Andereya S,Stanzel S,Maus U,Mueller-Rath R,Mumme T,Siebert CH,Stock F,Schneider U

更新日期：2008-04-01 00:00:00

abstract：:Background and purpose - Functional limitations after total knee arthroplasty (TKA) are common. In this longitudinal study, we wanted to identify subgroups of patients with distinct trajectories of pain-related interference with walking during the first year after TKA and to determine which demographic, clinical, symp...

journal_title：Acta orthopaedica

authors： Lindberg MF,Miaskowski C,RustøEn T,Rosseland LA,Cooper BA,Lerdal A

更新日期：2016-12-01 00:00:00

abstract：BACKGROUND:When surgical treatment of dysplastic hip osteoarthrosis is necessary, osteotomy is preferable to fusion or THR. We evaluated periacetabular osteotomy as a method of choice. PATIENTS AND METHODS:We treated 36 symptomatic dysplastic hip joints (32 patients) with the Bernese periacetabular osteotomy (PAO) bet...

journal_title：Acta orthopaedica

authors： Pogliacomi F,Stark A,Wallensten R

更新日期：2005-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:There are no reports in the literature on the influence of learning on the pedicle screw insertion. We studied the effect of learning on the rate of screw misplacement in patients with adolescent idiopathic scoliosis treated with segmental pedicle screw fixation. METHOD:We retrospectively evalua...

journal_title：Acta orthopaedica

authors： Abul-Kasim K,Ohlin A

更新日期：2011-02-01 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 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:Current techniques for epiphysiodesis involve opening of cortical windows; use of staples, screws, and tension devices; and fusion with curettes or drills. Complications may have serious consequences. There is a need for a more reliable, precise, and less traumatic procedure that overcomes the kn...

journal_title：Acta orthopaedica

authors： Shiguetomi-Medina JM,Rahbek O,Abood AA,Stødkilde-Jørgensen H,Møller-Madsen B

更新日期：2014-09-01 00:00:00

abstract：BACKGROUND:After total hip replacement, increased bone metabolism is seen. A local periprosthetic osteopenia can be measured by dual-energy X-ray absorptiometry (DXA), but it is still unkown whether biochemical markers can be used to monitor the local remodeling at an earlier stage. PATIENTS AND METHODS:In this prospe...

journal_title：Acta orthopaedica

authors： Habermann B,Eberhardt C,Feld M,Zichner L,Kurth AA

更新日期：2007-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Problems during knee extension, due to kinematic alterations, are not uncommon after total knee arthroplasty. Hinged prostheses provide higher stability than non-hinged designs and may minimize these alterations. Thus, in this in vitro study we investigated the quadriceps force required to extend...

journal_title：Acta orthopaedica

authors： Ostermeier S,Friesecke C,Fricke S,Hurschler C,Stukenborg-Colsman C

更新日期：2008-02-01 00:00:00

abstract：:Background and purpose - The Mitch proximal epiphyseal replacement (PER) was developed to preserve proximal femoral bone and minimize femoral neck fracture associated with hip resurfacing arthroplasty (HRA). We studied the survival and risk of revision of HRA compared with cementless metal-on-polyethylene (MoP) total ...

journal_title：Acta orthopaedica

authors： Tang-Jensen M,Kjærsgaard-Andersen P,Poulsen TK,Overgaard S,Varnum C

更新日期：2019-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Although total ankle replacement (TAR) is a recognized procedure for treatment of the painful arthritic ankle, the best choice of implant and the long-term results are still unknown. We evaluated the survival of two TAR designs and factors associated with survival using data from the nationwide a...

journal_title：Acta orthopaedica

authors： Skyttä ET,Koivu H,Eskelinen A,Ikävalko M,Paavolainen P,Remes V

更新日期：2010-02-01 00:00:00

abstract：:Background and purpose - Modular-neck hip stems have been identified with corrosion-related problems from the neck-stem junction. We report an ongoing varus deformity of modular-neck hip stems with simultaneous metal ion release observed during a study comparing the migration of modular vs. standard hip stems. Patient...

journal_title：Acta orthopaedica

authors： Kiernan S,Kaptein B,Flivik C,Sundberg M,Flivik G

更新日期：2020-12-10 00:00:00

abstract：:Background and purpose - Mobile-bearing total knee prostheses (TKPs) were developed in the 1970s in an attempt to increase function and improve implant longevity. However, modern fixed-bearing designs like the single-radius TKP may provide similar advantages. We compared tibial component migration measured with radios...

journal_title：Acta orthopaedica

authors： Van Hamersveld KT,Marang-Van De Mheen PJ,Van Der Heide HJL,Van Der Linden-Van Der Zwaag HMJ,Valstar ER,Nelissen RGHH

更新日期：2018-04-01 00:00:00

abstract：:Background and purpose - The treatment of patients between 55 and 70 years with displaced intracapsular femoral neck fracture remains controversial. We compared internal fixation (IF), bipolar hemiarthroplasty (HA) and total hip arthroplasty (THA) in terms of mortality, reoperations and patient-reported outcome by usi...

journal_title：Acta orthopaedica

authors： Bartels S,Gjertsen JE,Frihagen F,Rogmark C,Utvåg SE

更新日期：2018-02-01 00:00:00

abstract：BACKGROUND:The frontal pelvic plane has traditionally served as the reference plane for implantation of the acetabular cup during total hip arthroplasty, with referencing performed with the patient supine on the operating table. During daily activities in an upright position, the frontal pelvic plane changes from a hor...

journal_title：Acta orthopaedica

authors： Mayr E,Kessler O,Prassl A,Rachbauer F,Krismer M,Nogler M

更新日期：2005-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Ultrasound is used for imaging of pseudotumors associated with metal-on-metal (MoM) hips. Ultrasound has been compared with magnetic resonance imaging, but to date there have been no studies comparing ultrasound findings and revision findings. METHODS:We evaluated the sensitivity and specificity...

journal_title：Acta orthopaedica

authors： Lainiala O,Elo P,Reito A,Pajamäki J,Puolakka T,Eskelinen A

更新日期：2015-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Integration of repaired cartilage with surrounding native cartilage is a major challenge for successful tissue-engineering strategies of cartilage repair. We investigated whether incorporation of mesenchymal stem cells (MSCs) into the collagen scaffold improves integration and repair of cartilage...

journal_title：Acta orthopaedica

authors： Araki S,Imai S,Ishigaki H,Mimura T,Nishizawa K,Ueba H,Kumagai K,Kubo M,Mori K,Ogasawara K,Matsusue Y

更新日期：2015-02-01 00:00:00

abstract：:Background and purpose - Alternative bearing surfaces such as ceramics and highly crosslinked polyethylene (HXLPE) were developed in order to further improve implant performance of total hip arthroplasties (THAs). Whether these alternative bearing surfaces result in increased longevity is subject to debate. Patients a...

journal_title：Acta orthopaedica

authors： Peters RM,Van Steenbergen LN,Stevens M,Rijk PC,Bulstra SK,Zijlstra WP

更新日期：2018-04-01 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 AND PURPOSE:Hydroxyapatite (HA) coating is believed to improve bone-implant ingrowth and long-term survival of prostheses. Recent studies, however, have challenged this view. Furthermore, HA particles may produce third-body wear and initiate aseptic loosening of implants. We report the performance of HA- and...

journal_title：Acta orthopaedica

authors： Valancius K,Søballe K,Nielsen PT,Laursen MB

更新日期：2013-12-01 00:00:00

abstract：:Background and purpose - Information on the epidemiological trends of pelvic fractures and fracture surgery in the general population is limited. We therefore determined the incidence of pelvic fractures in the Finnish adult population between 1997 and 2014 and assessed the incidence and trends of fracture surgery.Pat...

journal_title：Acta orthopaedica

authors： Rinne PP,Laitinen MK,Kannus P,Mattila VM

更新日期：2020-10-01 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 - To date there is a lack of studies defining the anatomical position of the proximal fibula. This is especially relevant when planning surgical interventions affecting the knee joint such as permanent or temporary epiphysiodesis to correct leg length discrepancies or angular deformities in grow...

journal_title：Acta orthopaedica

authors： Frommer A,Niemann M,Gosheger G,Toporowski G,Laufer A,Eveslage M,Bröking JN,Rödl R,Vogt B

更新日期：2020-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The Norwegian Cruciate Ligament Register (NCLR) was founded in 2004. The purpose of the NCLR is to provide representative and reliable data for future research. In this study we evaluated the development of the registration rate in the NCLR. METHODS:The Norwegian Patient Register (NPR) and the e...

journal_title：Acta orthopaedica

authors： Ytterstad K,Granan LP,Ytterstad B,Steindal K,Fjeldsgaard KA,Furnes O,Engebretsen L

更新日期：2012-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Resurfacing total hip arthroplasty (RTHA) may preserve the femoral neck bone stock postoperatively. Bone mineral density (BMD) may be affected by the hip position, which might bias longitudinal studies. We investigated the dependency of BMD precision on type of ROI and hip position. METHOD:We DX...

journal_title：Acta orthopaedica

authors： Penny JØ,Ovesen O,Brixen K,Varmarken JE,Overgaard S

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:The in vivo pharmacokinetics of gentamycin- loaded collagen fleeces in humans have not been described in the current literature. We therefore analyzed in vivo pharmacokinetics of these fleeces when used in the treatment of periprosthetic infections. PATIENTS AND METHODS:Gentamycin concentrations were measur...

journal_title：Acta orthopaedica

authors： Swieringa AJ,Goosen JH,Jansman FG,Tulp NJ

更新日期：2008-10-01 00:00:00

abstract：BACKGROUND:Cancellous bone can act as a delivery vehicle for vancomycin without impairment of graft incorporation. However, local and systemic antibiotic levels, biological activity of vancomycin, interaction with antibiotic-loaded cement, and also nephrotoxicity of these composites have not yet been studied clinically...

journal_title：Acta orthopaedica

authors： Buttaro MA,Gimenez MI,Greco G,Barcan L,Piccaluga F

更新日期：2005-06-01 00:00:00