Search Results
Results 401 - 450 of 1130
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McClelland Damian - - 2006
Longevity of cemented femoral components is dependent upon many factors. It is certainly related to the cementing technique. A dilemma exists between adequate cement pressurization and risk of embolic events. A cementation pressure above bleeding pressure, to allow optimum cement bone interdigitation but not high enough to produce embolic or ...
Baroud Gamal - - 2006
STUDY DESIGN: An experimental study using cadaveric vertebrae. OBJECTIVES: To measure the injection pressure in an ex vivo model and determine whether the redesigned cannula, featuring 2 distinct sections of different diameters, significantly reduces the injection pressure. SUMMARY OF BACKGROUND DATA: An important limitation of vertebroplasty is the excessive pressure ...
Hile Amy M - - 2006
CONTEXT: Theoretically, the risk of compartment syndrome is increased during creatine monohydrate (CrM) supplementation because of intracellular fluid retention in muscle cells and the overall increased size of the muscle tissue. Whether this change in intracellular fluid is associated with an increase in anterior compartment pressure in the lower leg ...
Zhao Lu - - 2006
Although 5-aminolevulinic acid, ALA, and its derivatives, have been widely studied and applied in clinical photodynamic therapy (PDT), there is still a lack of reliable and non-invasive methods and technologies to evaluate physiological parameters of relevance for the therapy, such as erythema, melanogenesis, and oxygen level. We have investigated the ...
Frei Hanspeter - - 2006
Cement intrusion into cancellous or impacted bone is not well understood. We adopted an engineering mechanics approach to predict the effect of surgical variables on the cement intrusion into impacted cancellous bone, used for the revision of failed total hip replacement with the impaction allografting technique. Specifically, a three-dimensional finite ...
Timmers M S - - 2005
Vacuum-assisted closure (V.A.C. Therapy) uses 2 distinct types of foams, with different physical characteristics: the black polyurethane (PU) foam and the white polyvinyl alcohol (PVA) foam. This prospective, randomized study evaluates the response of cutaneous blood flow (CBF) in healthy intact forearm skin to varying V.A.C. Therapy negative pressures and ...
Shirakawa Miki - - 2005
Chronic wounds present a significant challenge, because there are few available treatment options for timely healing. Topical negative pressure devices have been used in a number of different types of wounds, including chronic wounds. They are believed to hasten wound healing by (1) maintaining a moist environment, (2) removing wound ...
Downey Douglas M - - 2005
BACKGROUND: Leakage at an anastomosis is a major and often catastrophic complication of gastrointestinal (GI) surgery. Staple-line reinforcement with one of the several materials commercially available has been utilized to reduce the incidence of this complication. The bioprosthetic material, small intestinal submucosa (SIS, Surgisis((R)); Cook, Inc., Bloomington, IN) has found ...
Gozzard C - - 2005
Adequate cement pressurization during stem insertion improves the interdigitation of cement into bone. This increases the strength of the cement-bone interface, thus contributing to the reduction of the incidence of aseptic loosening, the commonest cause of revision surgery. This in-vitro study compared the cement pressurization achieved during insertion of four ...
Foga?a Walfredo Cherubini - - 2005
Normal facial sensibility on the area of the infraorbital nerve was determined in 24 healthy subjects. The measurement of two points discrimination distance and the evaluation of cutaneous pressure threshold were assessed on both sides on the zygomatic, paranasal, and superior labial skin. Cutaneous sensibility varied from region to region ...
Rosenthal Eben L - - 2005
BACKGROUND: Head and neck microvascular surgery commonly requires management of complex wounds of the upper aerodigestive tract and donor sites. Negative pressure dressings have been reported to promote healing in compromised wounds. METHODS: Between February 2001 and June 2004, data were collected in a retrospective manner on 23 patients who ...
Boylu S - - 2005
In this study, we investigated the effects of synchronous anastomosis on intestinal healing in experimental colonic resection. Sprague-Dawley rats were randomized into 3 groups; control (group I), single anastomosis (group II) and synchronous (double) anastomosis (group III). Single and proximal anastomoses were located 3 cm distal to caecum, and distal ...
Olson Steven A - - 2005
Acute compartment syndrome is a potentially devastating condition in which the pressure within an osseofascial compartment rises to a level that decreases the perfusion gradient across tissue capillary beds, leading to cellular anoxia, muscle ischemia, and death. A variety of injuries and medical conditions may initiate acute compartment syndrome, including ...
Gravlee Clarence C - - 2005
We tested competing hypotheses for the skin color-blood pressure relationship by analyzing the association between blood pressure and 2 skin color variables: skin pigmentation and social classification. We measured skin pigmentation by reflectance spectrophotometry and social classification by linking respondents to ethnographic data on the cultural model of "color" in ...
Rousseau Bernard B Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, TN, USA. - - 2006
Phytochemical constituents of medicinal plants demonstrate inhibition of tissue and bacterial hyaluronidase. Echinacoside is a caffeoyl conjugate of Echinacea with known anti-hyaluronidase properties. The purpose of this study was to investigate the wound healing effects of Echinacea on vocal fold wound healing and functional voice outcomes. Pig animal model. Vocal ...
Hassinger Sean Michael - - 2005
Initial wound treatment is critical in the treatment of open fractures, contaminated wounds, and abscesses. Ample evidence suggests that high-pressure pulsatile lavage damages bone structure and disrupts soft tissue. We compared the depth of penetration and amount of retention of bacteria in contaminated soft tissue subjected to one of two ...
Acheson Eric M - - 2005
BACKGROUND: QuikClot powder (QC), chitosan dressing (CD), and fibrin sealant dressing (FSD) are new hemostatic products touted to be more effective in controlling severe extremity bleeding than the current standard gauze dressing. All have been utilized in the global war on terrorism. Our objective was to evaluate the hemostatic efficacy ...
Partsch H - - 2005
OBJECTIVES: To measure interface pressure and stiffness of short-stretch and long-stretch bandages applied with variable strength. These parameters have a deciding influence on the efficacy of compression therapy in chronic venous disease. DESIGN: Prospective experimental study. MATERIALS AND METHODS: Compression bandages constructed of different materials were applied with light, moderate ...
Ohura N - - 2005
OBJECTIVE: Shear force is believed to affect pressure ulceration. Therefore, dressing materials that reduce shear force may prevent ulceration and facilitate healing. METHOD: We measured the following three properties: the coefficient of friction between the outer layer of the dressings and the patient's clothes; the degree of adhesiveness between the ...
Fette Andreas - - 2005
The treatment of pressure ulcers is still a matter of debate. The pros and cons of topical negative pressure versus traditional saline wet-to-moist dressings, platelet-derived growth factor, and surgical debridement are discussed in the literature review. This article examines literature that relates to the mechanism of action and efficacy of ...
Jones Sophia M SM Odstock Burns, Wound Healing and Reconstructive Surgery Charitable Trust, Salisbury District Hospital, Salisbury, United - - 2005
Topical negative-pressure therapy is a widely used wound management system that generates a negative pressure at the wound surface through a foam pad, which aids in wound stimulation through mechanical forces on the wound bed. System guidelines state that the foam dressing should be placed in direct apposition with the ...
Seel Edward H - - 2005
STUDY DESIGN: Experimental evaluation of intracompartmental pressures in a fresh above knee amputated human leg. OBJECTIVES: To determine what effect raised pressure in one compartment of the lower leg had upon its neighbour. SUMMARY OF BACKGROUND DATA: There has been no previous reports of isolated compartment pathology, following low velocity ...
Stanley Andrew C - - 2005
Chronic venous insufficiency and venous ulceration are consequences of elevated pressure within affected limbs. We hypothesized that wounded cells maintained at different atmospheric pressures heal at different rates and that pressure would adversely affect the processes necessary for wound healing. We have developed an in vitro model that replicates venous ...
Ozkayin Nadir - - 2005
We studied 39 patients with 42 diaphyseal tibial fractures in whom we suspected a high risk for the development of a compartment syndrome. We measured the anterior absolute compartment pressure (ACP) every 12 h for 72 h and also recorded the differential pressure (DeltaP=diastolic blood pressure-ACP). Fasciotomy of the extremity ...
Steinberg Bruce D - - 2005
The purpose of this project was to study a noninvasive method of evaluating limbs at risk of compartment syndrome. Untreated limb compartment syndrome may lead to irreversible dysfunction, chronic pain and contracture. An improved means of obtaining quantitative hardness measurements is reported. The handheld noninvasive compartment syndrome evaluator (NCSE) device ...
Teng Andelle L - - 2005
OBJECTIVE: This study describes a previously unpublished technique for compartment release that combines adjunctive transverse fasciotomies with a limited longitudinal dermatofasciotomy and compares its efficacy with a standard extensile longitudinal dermatofasciotomy. DESIGN: Limited 10-cm longitudinal dermatofasciotomies were performed bilaterally on 14 cadaveric specimens (28 legs). Next, we performed transverse fasciotomies ...
Ustek S - - 2005
BACKGROUND: To evaluate the effect of povidone-iodine liposome hydrogel on colonic anastomosis. METHODS: 70 Wistar-Albino male rats were randomly divided into seven groups. The left colon was transected and end-to-end anastomosis was performed. PVP-I liposome hydrogel was applied around the anastomoses in groups 2 and 5. Colonic bursting pressures and ...
Rothwell Stephen W - - 2005
BACKGROUND: Recently, a wide variety of bandages have been formulated to attempt to improve the effectiveness of emergency intervention in situations of uncontrolled bleeding. The best of these dressings contain a mixture of human thrombin and fibrinogen. The presence of human components in these bandages, although effective, increases the cost ...
Kheirabadi Bijan S - - 2005
BACKGROUND: An effective hemostatic agent capable of stopping severe arterial bleeding and sustaining hemostasis over a prolonged time is required. The U.S. Army recently distributed fibrin sealant (under an Investigational New Drug-approved protocol) and chitosan dressings among deployed medics for treating severe external hemorrhage on the battlefield. The purpose of ...
Jones S M - - 2005
In clinical practice many wounds are slow to heal and difficult to manage. The recently introduced technique of topical negative pressure therapy (TNP) has been developed to try to overcome some of these difficulties. TNP applies a controlled negative pressure to the surface of a wound that has potential advantages ...
German Benjamin T - - 2005
STUDY OBJECTIVES: Pressure-immobilization bandages are used in countries where neurotoxic snake envenomations are common. They impede lymphatic egress from the bite site and delay systemic venom toxicity. The effectiveness of these devices has not been evaluated in coral snake envenomations. We investigated the efficacy of pressure-immobilization bandages in delaying the ...
Liu Rong - - 2005
BACKGROUND: The beneficial effects of graduated elastic compression stockings (GCSs) have been demonstrated. However, their pressure performances are variable and unstable in practical applications owing to many influencing factors. Comprehensive assessment of skin pressure profiles may help elucidate the mechanisms of action of compression stockings. OBJECTIVE: The objective of this ...
Klepps Steven - - 2005
Glenoid loosening is the most common long-term complication occurring after total shoulder replacement. Imprecise cement technique and glenoid preparation may result in early radiolucent glenoid line formation. Early radiolucent lines may indicate inadequate initial fixation, which may contribute to early loosening. Improved cement techniques, refined instrumentation, and glenoid component design ...
Partsch Hugo H Department of Dermatology, Medical university of Vienna, Vienna, Austria. - - 2005
The efficacy of compression therapy depends mainly on the exerted pressure and on the stiffness of the material. To propose a simple method by which pressure and stiffness can be assessed in the individual patient. Using a pressure transducer (Kikuhime small probe, MediTrade, Soro, Denmark) the sub-bandage pressure is measured ...
Wackenfors Angelica - - 2005
BACKGROUND: Vacuum-assisted closure (VAC) therapy is a recently introduced method for the treatment of poststernotomy mediastinitis. The aim of this study was to examine the effects of negative pressure on peristernal soft tissue blood flow and metabolism because the mechanisms by which vacuum-assisted closure therapy promotes wound healing are not ...
Buranapanitkit Boonsin - - 2005
The etiopathogenesis of congenital talipes equinovarus remains mysterious. The authors investigated the role of increased intracompartmental leg pressures as a causal relationship with this deformity by measuring the pressures in 25 children aged between 6 months and 1 year with unilateral talipes equinivarus before surgical release. The deep posterior intracompartmental ...
Kutty Satish - - 2005
Our aim was to study the effect of traction on the compartment pressures during intramedullary nailing of closed tibial-shaft fractures. Thirty consecutive patients with Tscherne C1 fractures were randomised into two groups. Sixteen patients underwent intramedullary nailing of the tibia with traction and 14 patients without traction. Compartment pressures were ...
Flivik Gunnar - - 2005
BACKGROUND: Cementing technique is a crucial factor in prosthesis fixation. No randomized studies have been published, however, comparing the outcome of conventional fingerpacking with the outcome of pressurization of the cement prior to cup insertion. PATIENTS AND METHODS: We randomized 50 THAs to either fingerpacking or sequential pressurization (including individual ...
Odland Rick - - 2005
OBJECTIVES: To demonstrate the efficacy of compartment syndrome ultrafiltration for the treatment of acute compartment syndrome in an animal model. Our hypothesis is the removal of interstitial fluid will result in a reduction of intramuscular pressure compared with untreated controls in a model of bilateral induced compartment syndrome. DESIGN: Controlled ...
Ludwig Corinna - - 2005
OBJECTIVE: In a previous experimental study on 60 freshly slaughtered pig trachea, a statistically significant better resistance to pressure was found after mechanical stapling compared to hand suture. The objective of this study was to determine the resistance to pressure of a bronchial stump depending upon the closure technique (manual ...
Rodrigues Alfredo J - - 2005
To present our experience with penetrating cardiac injuries. We have retrospectively reviewed the records of 70 victims of penetrating cardiac injuries. A logistic regression has been performed in order to determine the association between death and clinical predictors. Penetrating injuries consisted of 43 stab wounds (61.4%) and 27 (38.6%) gunshot ...
Geller Stephen M - - 2005
Pyoderma gangrenosum is a skin disease characterized by wounds with blue-to-purple undermined borders surrounding purulent necrotic bases. This article reports on a patient with a circumferential, full-thickness, and partially necrotic lower-extremity ulceration of unknown etiology. Results of laboratory tests and arterial and venous imaging studies were found to be within ...
Krebs Jörg - - 2005
STUDY DESIGN: Clinical study of injection pressure during vertebroplasty. OBJECTIVES: To investigate the range of injection pressures during conventional vertebroplasty interventions and to study the influence of syringe design and cement polymerization time on injection pressure. SUMMARY OF BACKGROUND DATA: Vertebroplasty is an efficient procedure for the treatment of painful ...
Charalambides Charalambos - - 2005
BACKGROUND: Firm bandaging of the knee following knee replacement may prevent bleeding into the joint by a tamponade effect. We studied the pressure required to achieve tamponade, and then clinically compared the use of a compression bandage with the use of a standard crêpe bandage, with or without a drain. ...
Ogunlusi Johnson D - - 2005
Acute compartment syndrome is associated with tibial fractures and failure to diagnose it leads to grave consequences. This study was conceived with the aim of determining the intra-compartmental pressure in adults with closed tibial fractures and intended to provide early diagnosis of acute compartment syndrome. The Whitesides injection method was ...
Arnold William - - 2005
BACKGROUND: The consequences of a staple-line leak or disruption can be devastating particularly in the bariatric surgery population. This study was designed to assess if gastrointestinal staple-lines buttressed with bovine pericardium could tolerate greater intraluminal pressures compared with non-reinforced staple-lines. METHODS: A laparoscopic linear cutting staple device was used to ...
Persson Mikael - - 2005
During cardiac surgery the wound is exposed to desiccation, especially as a result of operating room ventilation and the insufflation of dry carbon dioxide (CO(2)) for de-airing. We compared the gas humidity and desiccation rates in an in vitro model of a cardiothoracic wound during these conditions and during insufflation ...
Baroud G - - 2005
One of the main limitations of vertebroplasty is the excessive pressure required to inject a sufficient amount of cement into a vertebral body. Based on previous work that shows that approximately 95% of the injection pressure is required to deliver the cement through the cannula, we proposed a new cannula ...
Norris Robert L - - 2005
OBJECTIVE: To determine whether volunteers (with or without prior medical training) can correctly apply pressure immobilization (PI) in a simulated snakebite scenario after receiving standard instructions describing the technique. METHODS: Twenty emergency medicine physicians (residents and attendings) and 20 lay volunteers without prior formal medical training were given standard printed ...
Venturi Mark L - - 2005
The use of sub-atmospheric pressure dressings, available commercially as the vacuum-assisted closure (VAC) device, has been shown to be an effective way to accelerate healing of various wounds. The optimal sub-atmospheric pressure for wound healing appears to be approximately 125 mm Hg utilizing an alternating pressure cycle of 5 minutes ...
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