A randomized RSA study concentrating especially on continuous migration.

abstract：:Background and purpose - Hemiarthroplasty (HA) is the most common treatment for displaced femoral neck fractures in many countries. In Norway, there has been a tradition of using the direct lateral surgical approach, but worldwide a posterior approach is more often used. Based on data from the Norwegian Hip Fracture R...

journal_title：Acta orthopaedica

authors： Kristensen TB,Vinje T,Havelin LI,Engesæter LB,Gjertsen JE

更新日期：2017-02-01 00:00:00

abstract：UNLABELLED:BACKGROUND AND PURPOSE Analgesics can have undesirable effects. We assessed whether a single preoperative dose of 120 mg etoricoxib reduces the need for additional opioids after therapeutic arthroscopic knee surgery. METHODS A double-blind, placebo-controlled study was performed at a single center. 66 patien...

journal_title：Acta orthopaedica

authors： Lierz P,Losch H,Felleiter P

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND:Degree of satisfaction with a knee arthroplasty is said to be correlated to reduced pain and better function. During a validation of the Swedish Knee Arthroplasty Register in 1997, previously operated patients were asked how satisfied they were with their knee. A subgroup of "satisfied" patients was identifi...

journal_title：Acta orthopaedica

authors： Bremander AB,Dunbar M,Knutson K,Petersson IF,Robertsson O

更新日期：2005-12-01 00:00:00

abstract：:Background and purpose - Patients having a total knee arthroplasty (TKA) after a previous high tibial osteotomy (HTO) constitute a minor group among those undergoing primary TKA for knee osteoarthritis (OA). There have been few reports on whether such patients differ pre- and postoperatively from those who undergo TKA...

journal_title：Acta orthopaedica

authors： W-Dahl A,Robertsson O

更新日期：2016-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The pathomechanics of the Essex-Lopresti lesion are not fully understood. We used human cadavers and documented the genesis of the injury with high-speed cameras. METHODS:4 formalin-fixed cadaveric specimens of human upper extremities were tested in a prototype, custom-made, drop-weight test ben...

journal_title：Acta orthopaedica

authors： Wegmann K,Engel K,Burkhart KJ,Ebinger M,Holz R,Brüggemann GP,Müller LP

更新日期：2014-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Rotational osteotomies are usually necessary to correct pronounced rotational deformities in ambulant children with cerebral palsy. The effects of soft tissue surgery on such deformities are unclear. In this retrospective study, we determined whether multilevel soft tissue surgery, performed to c...

journal_title：Acta orthopaedica

authors： Lofterød B,Terjesen T

更新日期：2010-04-01 00:00:00

abstract：:Background and purpose - Threshold values defining 3 categories of passive range of motion are used in the Cerebral Palsy follow-Up Program to guide clinical decisions. The aim of this study was to investigate the threshold values by testing the hypothesis that passive range of motion in ankle dorsiflexion is associat...

journal_title：Acta orthopaedica

authors： Rasmussen HM,Svensson J,Thorning M,Pedersen NW,Overgaard S,Holsgaard-Larsen A

更新日期：2018-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Hip fracture (HF) in frail elderly patients is associated with poor physical recovery and death. There is often postoperative blood loss and the hemoglobin (Hb) threshold for red blood cell (RBC) transfusions in these patients is unknown. We investigated whether RBC transfusion strategies were as...

journal_title：Acta orthopaedica

authors： Gregersen M,Borris LC,Damsgaard EM

更新日期：2015-06-01 00:00:00

abstract：BACKGROUND:The etiology of osteoarthritis (OA) is multifactorial and current research attributes it to a complex network of biochemical factors. We attempted to identify important molecules in OA joint destruction. PATIENTS AND METHODS:Synovium was collected from 2 women with hip OA. Total RNA was extracted from the c...

journal_title：Acta orthopaedica

authors： Okabe T,Ohmori Y,Tanigami A,Hishigaki H,Suzuki Y,Sugano S,Kawaguchi A,Nakaya H,Wakitani S

更新日期：2007-10-01 00:00:00

abstract：BACKGROUND:Treatment of proximal humerus fractures in elderly patients is challenging because of reduced bone quality. We determined the in vitro characteristics of a new implant developed to target the remaining bone stock, and compared it with an implant in clinical use. METHODS:Following osteotomy, left and right h...

journal_title：Acta orthopaedica

authors： Duda GN,Epari DR,Babst R,Lambert SM,Matthys R,Südkamp NP

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The osteogenic potency of erythropoietin (EPO) has been documented. However, its efficacy in a large-animal model has not yet been investigated; nor has a clinically safe dosage. The purpose of this study was to overcome such limitations of previous studies and thereby pave the way for possible c...

journal_title：Acta orthopaedica

authors： Rölfing JH,Jensen J,Jensen JN,Greve AS,Lysdahl H,Chen M,Rejnmark L,Bünger C

更新日期：2014-04-01 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:Fat embolism (FE), the release of bone marrow contents into the circulation and the subsequent cardiovascular changes, is still a potentially fatal com-plication during orthopedic surgery. Different causative factors have been suggested, but the exact pathomechanism of FE still remains unclear. We investigat...

journal_title：Acta orthopaedica

authors： Aebli N,Schwenke D,Davis G,Hii T,Theis JC,Krebs J

更新日期：2005-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Surgical treatment of chronic acromioclavicular joint dislocations is challenging, and no single procedure can be considered to be the gold standard. In 2010, the GraftRope method (Arthrex Inc., Naples, FL) was introduced in a case series of 10 patients, showing good clinical results and no compl...

journal_title：Acta orthopaedica

authors： Nordin JS,Aagaard KE,Lunsjö K

更新日期：2015-04-01 00:00:00

abstract：UNLABELLED:BACKGROUND AND PURPOSE Corticosteroid treatment is associated with osteonecrosis of the femoral head (ON) in certain patients. The degree of drug sensitivity in general is governed by genetic variation between individuals. We investigated the relationship between ON and the presence of different alleles of t...

journal_title：Acta orthopaedica

authors： He W,Li K

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The first generations of total ankle replacements (TARs) showed a high rate of early failure. In the last decades, much progress has been made in the development of TARs, with the newer generation showing better results. We evaluated TARs implanted with rheumatoid arthritis (RA) or juvenile infla...

journal_title：Acta orthopaedica

authors： van der Heide HJ,Schutte B,Louwerens JW,van den Hoogen FH,Malefijt MC

更新日期：2009-08-01 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:Several mechanisms are responsible for patellar dislocation. We investigated how the primary pathomechanism relates to patient characteristics and the outcome. METHODS:126 patients (81 females) with primary patellar dislocation reported the knee position before the episode, the movement during i...

journal_title：Acta orthopaedica

authors： Nikku R,Nietosvaara Y,Aalto K,Kallio PE

更新日期：2009-08-01 00:00:00

abstract：BACKGROUND:Gamma irradiation has been widely used for sterilization of bone allografts. However, gamma irradiation alters proteins. This is favorable when it reduces immunogenicity, but is undesirable when osteoinductive proteins are damaged. Although the effect of gamma irradiation on BMPs has been studied, the effect...

journal_title：Acta orthopaedica

authors： Hannink G,Schreurs BW,Buma P

更新日期：2007-02-01 00:00:00

abstract：BACKGROUND:It is well known that anterior cruciate ligament (ACL) injuries are commoner in female athletes. Accordingly, we hypothesized that serum estrogen may play some role in this sex difference. We evaluated the relationship between serum estrogen levels and the mechanical properties of the ACL in rabbits. ANIMAL...

journal_title：Acta orthopaedica

authors： Komatsuda T,Sugita T,Sano H,Kusakabe T,Watanuki M,Yoshizumi Y,Murakami T,Hashimoto M,Kokubun S

更新日期：2006-12-01 00:00:00

abstract：:Background and purpose - It is unclear whether physiotherapy interventions or patient education before total hip replacement (THR) is beneficial for patients postoperatively. Utilizing the Swedish Hip Arthroplasty Register (SHAR), we retrospectively studied the influence of preoperative self-reported exposure to physi...

journal_title：Acta orthopaedica

authors： Torisho C,Mohaddes M,Gustafsson K,Rolfson O

更新日期：2019-08-01 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 - The number of primary, highly constrained knee arthroplasty implants has increased with a theoretically increased risk of early failure. Therefore we analyzed the risk of all revision following total knee arthroplasty (TKA) in patients receiving a hinged or condylar constrained knee (CCK) comp...

journal_title：Acta orthopaedica

authors： Badawy M,Fenstad AM,Furnes O

更新日期：2019-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Although a tourniquet may reduce bleeding during total knee replacement (TKA), and thereby possibly improve fixation, it might also cause complications. Migration as measured by radiostereometric analysis (RSA) can predict future loosening. We investigated whether the use of a tourniquet influenc...

journal_title：Acta orthopaedica

authors： Ledin H,Aspenberg P,Good L

更新日期：2012-10-01 00:00:00

abstract：UNLABELLED:BACKGROUND AND PURPOSE Over the last 5 years, there has been increasing interest in reducing length of hospitalization (LOS) through accelerated programs. We examined the clinical outcome of patients undergoing a unicompartmental knee replacement (UKR) in an accelerated care program (A group) compared to a c...

journal_title：Acta orthopaedica

authors： Borgwardt L,Zerahn B,Bliddal H,Christiansen C,Sylvest J,Borgwardt A

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND:To overcome the mismatch between a stiff stem and the more elastic bone, the concept of isoelasticity was introduced in the 1970s. This concept was based on the assumption that the implant and the bone should deform as one unit to avoid stress shielding. The Robert Mathys (RM) cementless total hip replacemen...

journal_title：Acta orthopaedica

authors： Trebse R,Milosev I,Kovac S,Mikek M,Pisot V

更新日期：2005-04-01 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: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 AND PURPOSE:The reproducibility of results and potential confounders in sample-based studies is important to consider in the assessment of studies. Comprehensive arthroplasty registers could serve as a reference dataset for comparative analyses. We analyzed an implant that is frequently used worldwide, the O...

journal_title：Acta orthopaedica

authors： Labek G,Sekyra K,Pawelka W,Janda W,Stöckl B

更新日期：2011-04-01 00:00:00