Search Results
Results 401 - 450 of 1289
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Koch Peter P - - 2008
Total hip arthroplasty (THA) still carries a higher failure rate in patients with avascular necrosis of the femoral head (AVN) than in a similar patient population with THA for other reasons. This is particularly true for the acetabular component. One of the major factors accounting for this is the compromised ...
Francés Alberto - - 2007
A retrospective clinical review was done on 54 revision hip patients. Radiological analysis examined the Gross and AAOS classifications, stem position, cement mantles, allograft and evolution (subsidence, resorption and remodelling). The Harris Hip score was used for clinical assessment. We used bone bank allograft and a polished non-collared stem LD. ...
Danesh-Clough Tony - - 2007
The Synergy stem is a third-generation proximal in-growth, tapered titanium alloy uncemented stem, with standard and high offset versions. Two hundred ten primary hip arthroplasties were performed using the Synergy stem in 193 patients. There were 124 males and 69 females with an average age of 58 years (range, 22-85 ...
Gioe Terence J - - 2007
The advantages of a monoblock design and lower cost have generated renewed interest in all-polyethylene tibial components for total knee arthroplasty (TKA). We hypothesized an all-polyethylene design would function equivalently to a metal-backed modular design at lower cost and at long-term followup. We report the 8- to 12-year followup of ...
Sathappan Sathappan S - - 2007
Currently, there are several femoral stem designs available for use, but few have an extended track record. We have previously reported on 10- and 15-year outcome studies of total hip arthroplasty (THA) using a cemented normalized and proportionalized femoral stem from a single surgeon series. This is a follow-up study ...
Ulén B - - 2007
In five out of twelve Swedish agricultural rivers examined during the period 1993-2004, significant trends for decreasing concentrations of reactive inorganic nitrogen (RIN) were indicated after flow normalisation. These decreases were constant (equal to 2-4% per year), most apparent in the Scania region, and weakly correlated to reductions in livestock ...
Sano Keiji - - 2008
Cementless total hip arthroplasty has achieved reliable long-term results since porous coatings were developed, but postoperative changes around the stem remain poorly documented. In this study, changes of the bone mineral density (BMD) were compared between two types of cementless stem. In group B (28 patients with 31 hips), a ...
Zha Tianshan - - 2007
Distinguishing between, and quantifying, the different components of ecosystem C fluxes is critical in predicting the responses of ecosystem C cycling to climate change. The aims of this study were to quantify the photosynthetic and respiratory fluxes of a 50-year-old Scots pine (Pinus sylvestris) ecosystem, and to distinguish respiration of ...
Hayashi Tetsuo - - 2007
BACKGROUND: In our department, a vacuum bag with two lateral boards used to be utilized in order to maintain patients in the lateral decubitus position during THA. However, we recently changed this modality to a three-point fixation device for the pelvis in order to accurately control the position of the ...
Cherubino P - - 2007
The purpose of this study was to evaluate 115 "Conus" uncemented stems at an average follow-up of 6 years (2-9 years). Seventeen patients were lost at follow-up for a final number of 98 stems in 75 patients. The clinical outcome of 71 hips (72%) was graded excellent, 25 (25%) were ...
Smit Jeroen M - - 2007
INTRODUCTION AND AIM: To develop a protocolized monitor schedule in microvascular free flap reconstruction, we investigated a possible correlation between the outcome and the interval between clamp release and start of revision. MATERIALS AND METHODS: All the charts of patients treated between 2000 and 2006 with a free flap were ...
Mineo Ronald - - 2007
Increased femoral component lateralization has been reported to recreate femoral offset accurately, and should provide better function. Concerns exist that negative effects may occur such as increased thigh pain, trochanteric bursitis, and loosening. The current study aims to examine whether a lateralized femoral component design is associated with increase in ...
Masri Bassam A - - 2007
We retrospectively reviewed all patients at one center with an infected total hip arthroplasty treated with 2-stage revision using cementless components for the second stage and the PROSTALAC articulated spacer at the first stage. Twenty-nine patients were reviewed and followed for at least 2 years postoperatively. An isolated Staphylococcus species ...
Kanazawa Taketoshi - - 2007
Little is known about the influence of simple limbectomy on the growth of the acetabulum. An experimental study was carried out in ten monkeys divided into two groups: limbectomy only (Group A) and limbectomy with concomitant cartilage resection (Group B). After three years and four months postoperatively, monkeys were sacrificed. ...
Lux Matthew - - 2007
PURPOSE: We evaluated long-term viability, quality of life and satisfaction with the redesigned 2 piece Ambicor inflatable penile prosthesis. This device underwent revision of the rear tip extender and reinforcement of the pump tubing connection to decrease fluid leak failure in 1998. MATERIALS AND METHODS: In this retrospective analysis we ...
Martínez de Aragón Javier S - - 2007
We report the updated results for a previously evaluated patient cohort who had uncemented total hip arthroplasties using the Lord femoral component. The original cohort consisted of 114 total hip arthroplasties (110 patients) performed from 1979 to 1984. The patients were followed up for an average of 21 years postoperatively. ...
Nichols Gregory A - - 2007
OBJECTIVE: To revise older estimates of secondary failure that may no longer describe the contemporary pattern of sulfonylurea (SU) monotherapy and to identify predictors of such failure. METHODS: We identified 4,091 patients who achieved hemoglobin A1c (A1C) <8% within 1 year after initiation of SU therapy as their first-ever antihyperglycemic ...
Rahman F - - 2007
This prospective study was made to asses the results of total hip replacement done primarily at Dhaka Medical College Hospital by the surgical team from its orthopaedic department. Eight patients were selected randomly from April/2005 to December/2005. Six patients were male and two females. Age of the patients was ranging ...
Jaffe William L - - 2007
A retrospective review of two multicenter prospective stud- ies was performed of a dual radius design acetabular shell, one with a titanium arc deposited surface roughening and hydroxylapatite coating (AD HA) designed to optimize initial component stability and enhance biological ixation and the other grit-blasted and HA (GB HA) coated. ...
Ström Håkan - - 2007
We performed this investigation to determine the possible migration starting immediately after surgery and the effect of different weightbearing regimens on the migration pattern of an uncemented hip stem (CLS). Stem migration was determined with radiostereometry analysis with baseline when the patients still were anesthetized. Subsequent examinations were done up ...
Lara Beatriz - - 2007
The Spanish registry of alpha-1 antitrypsin deficiency was founded in 1993 and became a member of the International Registry (AIR) in 1999. We describe the updating process following its incorporation into AIR and compare the data collected in the first period (1993-1999) and the second period (1999-2005), during which time ...
Einsiedel T - - 2007
Proximal stem fixation by partial cementing is a new concept in hip arthroplasty. We conducted a prospective clinical and radiological analysis to evaluate the preliminary outcome of this new technique with the Option 3000 stem (Mathys Orthopaedics, Bettlach, Switzerland). One hundred and thirty-three hip replacements in 123 patients have been ...
Inoue Atsushi - - 2006
The present retrospective study assessed radiographs to determine socket wear in total hip arthroplasty (THA) with 22-mm zirconia or COP (Cobalt-Chrome alloy rich in Cobalt and Phosphorous) heads, and in cemented stems at more than 10 years after operation. Sockets of ultra high molecular weight polyethylene were used in each ...
Capello William N - - 2006
Hydroxyapatite-coated femoral components were introduced to enhance fixation, but concerns were raised about whether the coating would be maintained over time. We therefore determined the long-term clinical and radiographic results of a proximally hydroxyapatite-coated femoral component and compared the mechanical failure rate to other fixation methods at similar lengths of ...
Paprosky Wayne - - 2006
We sought to determine if acetabular cages prevented rerevision and loosening in acetabular reconstructions in the setting of pelvic discontinuity. We followed 15 patients with 16 acetabular cage reconstructions for an average 5 years (range, 2-8 years). Acetabular classifications included two Type 2C, six Type IIIA, and eight Type IIIB. ...
Hilding Maria - - 2006
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 maximal total ...
Ince Akif - - 2006
BACKGROUND: Poor bone stock in patients with osteonecrosis of the femoral head may be a reason for poor outcome after hip replacement. One way of studying bone quality is to measure implant migration. We thus investigated the clinical and radiographic results of cementless THR in younger patients with femoral head ...
Murphy Stephen B - - 2006
From June 1997 to June 2003 we performed 194 total hip arthroplasties on 173 patients using alumina ceramic-on-ceramic bearings as part of a prospective United States Food and Drug Administration/Investigational Device Exemption study. The average patient age at surgery was 49.9 years. Minimum followup time was 2 years (mean 4.3 ...
Jensen, Flemming Pagh; Orbicon, ...
This paper presents the results of a satellite tracking study of seven adult Abdim's Storks <i>Ciconia abdimii</i> that were followed from the nesting areas in southern Niger across the equator to the non-breeding range and back. Post-breeding migration started between early November and early December when all birds migrated directly ...
Lübbeke Anne - - 2007
OBJECTIVE: Revision hip arthroplasty is associated with less favorable short and longterm results than primary total hip arthroplasty (THA). We compared quality of life and satisfaction 5 years after the 2 interventions, to determine the influence of patient characteristics on poorer outcomes after revision, and to analyze if their influence ...
Huddleston Harvey Terrell - - 2006
A list of sterilization failures encountered on the Benign Gynecology Service, Department of Obstetrics and Gynecology, L.S.U. Medical Center, Shreveport during the last eight and one-half years of the decade of the 1990's is reported. A total of 127 failures were collected. Eighteen (14%) of these cases fulfilled the criteria ...
Nedir Rabah - - 2006
PURPOSE: Evaluation of prosthetic complication was performed on 236 patients treated with 528 implants in an 8-year private practice experience. MATERIALS AND METHODS: The study sample included 55 overdentures (ODs) and 265 fixed partial dentures (FPDs). Among the latter, 231 FPDs were cemented and 34 were screw-retained. The type and ...
Hungerford Marc W - - 2006
BACKGROUND: Recent studies have indicated that the rate of successful long-term outcome after primary total hip arthroplasty for patients with osteonecrosis may be improved with the use of later-generation porous-coated prostheses (biologic ingrowth fixation) and cement techniques (cement fixation). Less is known about the long-term outcome after revision arthroplasty in ...
Karatosun Vasfi - - 2006
BACKGROUND: The thrust plate prosthesis is an implant with a metaphyseal fixation at the proximal femur that transmits the load forces of the hip onto the femoral neck. METHODS: In this prospective study, 15 patients (8 women, 7 men) with 19 cementless thrust plate prostheses because of femoral head necrosis ...
Lachiewicz Paul F - - 2006
This study reviewed the long-term efficacy of the locking mechanism of the Harris-Galante porous (HGP) I and II acetabular components and the results and complications of polyethylene liner exchange without cement. There were 400 HGP-I components with a mean follow-up of 10 years (range, 2-19 years) and 78 HGP-II components ...
Geerdink Carel H - - 2006
BACKGROUND: Polyethylene wear-induced osteolysis is a major cause of implant loosening in total hip arthroplasty. New crosslinked polyethylenes are presumed to give lower wear rates, but no long-term clinical results are available yet. PATIENTS AND METHODS: We compared basic material characteristics and MTS hip joint simulator wear rates of a ...
Grübl Alexander - - 2006
Between October 1986 and November 1987, 208 total hip arthroplasties were performed with use of the cementless Zweymüller stem and a threaded cup in 200 consecutive patients. Of 102 patients (108 hips) who were available for follow-up at a minimum of 180 months postoperatively, eighty-three (eighty-nine hips) had the primary ...
Amstutz Harlan C - - 2006
BACKGROUND: Following the reintroduction of metal-on-metal articulating surfaces for total hip arthroplasty in Europe in 1988, we developed a surface arthroplasty prosthetic system using a metal-on-metal articulation. The present study describes the clinical and radiographic results of the first 400 hips treated with metal-on-metal hybrid surface arthroplasties at an average ...
Sporer Scott M - - 2006
Pelvic discontinuity can be encountered during acetabular revision in patients with severe bone loss. All patients who had an acetabular reconstruction for a type IIIB acetabular defect according to the classification of Paprosky et al [Paprosky WG, Perona PG, Lawrence JM. 1994. Acetabular defect classification and surgical reconstruction in revision ...
Phillips S J - - 2006
We carried out a retrospective case-control study in 80 patients who underwent a revision total hip replacement. Group A (40 patients) received tranexamic acid and intra-operative cell salvage. Group B (40 patients) was a matched control group and did not receive this management. Each group was divided into four subgroups: ...
Tai C C - - 2006
We carried out a prospective study of 118 hydroxyapatite-coated, cementless total knee replacements in patients who were </= 55 years of age and who had primary (92; 78%) or post-traumatic (26; 22%) osteoarthritis. The mean period of follow-up was 7.9 years (5 to 12.5). The Knee Society clinical scores improved ...
Leali Alex - - 2006
Uncemented stems have been advocated for primary total hip arthroplasties in the young active population. We evaluated the clinical and radiographic results of total hip arthroplasties with a customized lateral flare cementless femoral stem in a prospective, consecutive series of 35 patients (40 hips) younger than 55 years at the ...
Morgan Hannah D - - 2006
Limb salvage surgery is an effective procedure with a low risk of tumor recurrence. In an attempt to define the incidence of implant failure at 2, 5, and 10 years postoperatively, we retrospectively reviewed implant survival in a group (n = 105) of pediatric (< 18 years of age) and ...
Saunders James E JE Department of Otorhinolaryngology, University of Oklahoma, Health Sciences Center, Oklahoma City, OK 73190-3048, USA. - - 2006
Otolaryngologists are often confronted with structural defects in the tegmen, scutum, or external auditory canal (EAC). Carbonated calcium phosphate (CCP) bone cements offer an alternative way of managing these defects. Retrospective review in an academic otology practice. The technical feasibility of these techniques described as well as the wound healing ...
Maruthainar K - - 2006
We performed a retrospective analysis of twenty-five consecutive massive articulating endoprostheses that were inserted at our unit during the management of patients with Giant Cell Tumours of their distal femur. Fifteen of these implants were fixed hinge devices and ten were rotating hinge devices with HA collars (since 1993). None ...
Jain S - - 2006
The treatment of erectile dysfunction has been revolutionised with the introduction of orally active phosphodiesterase inhibitors which are successful in 70-80% of men. However, there remain a group of men in whom conservative treatment fails and surgical insertion of a penile prosthesis is required. This type of surgery has in ...
Khan R J K - - 2006
We treated 34 patients with recurrent dislocation of the hip with a constrained acetabular component. Roentgen stereophotogrammetric analysis was performed to assess migration of the prosthesis. The mean clinical follow-up was 3.0 years (2.2 to 4.8) and the radiological follow-up was 2.7 years (2.0 to 4.8). At the latest review ...
Comba F - - 2006
We reviewed the clinical and radiological results of 131 patients who underwent acetabular revision for aseptic loosening with impacted bone allograft and a cemented acetabular component. The mean follow-up was 51.7 months (24 to 156). The mean post-operative Merle D'Aubigné and Postel scores were 5.7 points (4 to 6) for ...
van der Linde Matthys J A - - 2006
Prosthesis migration in bone inevitably occurs in cemented and uncemented total knee arthroplasty tibial components. Cemented designs as the gold standard give immediate fixation whereas cementless designs need a period of bone ingrowth onto the surface irregularities of the implants. The addition of bioactive coatings may enhance this process of ...
Rahme Hans H Department of Orthopedics, Uppsala University Hospital, Sweden. - - 2006
It is unclear whether humeral stems should be fixed with or without cement. We question whether press-fit fixation would provide similar results to cemented stem fixation. We prospectively randomized 26 shoulders in 24 patients with rheumatoid arthritis (20 women, 4 men) to have either a cemented or press-fit stem. In ...
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