Pain Threshold Along the Lower Leg in Alpine Ski Boots

Reduction in Pain Sensitivity from Pharmacological Elevation of Blood Pressure in Persons with Chronically Low Blood Pressure

Journal of Psychophysiology ◽

10.1027/0269-8803.23.3.104 ◽

2009 ◽

Vol 23 (3) ◽

pp. 104-112 ◽

Cited By ~ 12

Author(s):

Stefan Duschek ◽

Heike Heiss ◽

Boriana Buechner ◽

Rainer Schandry

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Pain Sensitivity ◽

Pain Threshold ◽

Pain Perception ◽

Drug Effects ◽

Pressure Effects ◽

Double Blind ◽

Low Blood Pressure ◽

Present Trial

Recent studies have revealed evidence for increased pain sensitivity in individuals with chronically low blood pressure. The present trial explored whether pain sensitivity can be reduced by pharmacological elevation of blood pressure. Effects of the sympathomimetic midodrine on threshold and tolerance to heat pain were examined in 52 hypotensive persons (mean blood pressure 96/61 mmHg) based on a randomized, placebo-controlled, double-blind design. Heat stimuli were applied to the forearm via a contact thermode. Confounding of drug effects on pain perception with changes in skin temperature, temperature sensitivity, and mood were statistically controlled for. Compared to placebo, higher pain threshold and tolerance, increased blood pressure, as well as reduced heart rate were observed under the sympathomimetic condition. Increases in systolic blood pressure between points of measurement correlated positively with increases in pain threshold and tolerance, and decreases in heart rate were associated with increases in pain threshold. The findings underline the causal role of hypotension in the augmented pain sensitivity related to this condition. Pain reduction as a function of heart rate decrease suggests involvement of a baroreceptor-related mechanism in the pain attrition. The increased proneness of persons with chronic hypotension toward clinical pain is discussed.

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Numerical steady flow solutions of the lower leg venous circulation: effects of external compression

The European Physical Journal Applied Physics ◽

10.1051/epjap:2007066 ◽

2007 ◽

Vol 38 (3) ◽

pp. 287-297

Author(s):

J.-M. Fullana ◽

P. Flaud

Keyword(s):

Steady Flow ◽

Lower Leg ◽

External Compression ◽

Venous Circulation

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Comparison of standardised lymphoscintigraphic function test and high resolution sonography of the lymphoedema of legs

Phlebologie ◽

10.1055/s-0037-1622238 ◽

2008 ◽

Vol 37 (05) ◽

pp. 247-252 ◽

Cited By ~ 4

Author(s):

V. S. Brauer ◽

W. J. Brauer

Keyword(s):

Lower Leg ◽

Clinical Findings ◽

Lower Limbs ◽

Fatty Tissue ◽

Qualitative And Quantitative ◽

Function Test ◽

Unreliable Method ◽

Negative Conclusion ◽

Fine Disperse

SummaryPurpose: Comparison of qualitative and quantitative sonography with the lymphoscintigraphic function test and clinical findings in legs. Patients, methods: In 33 patients a lymphoscintigraphic function test of legs combined with measurement of lymph node uptake was performed and subsequently compared with sonography. Sonographic criteria were: Thickness of cutis, thickness of subcutanean fatty tissue and presence of liquid structures or fine disperse tissue structure of lower limbs, foots and toes. Results: In 51 legs uptake values lie in the pathologic area, in four legs in the grey area and in ten legs in the normal area. The cutis thickness in the lower leg shows no significant correlation with the uptake. The determination of the thickness of the subcutanean fatty tissue of the lower leg and of the cutis thickness of the feet turned out to be an unreliable method. In 47% of the medial lower legs and in 57% of the lateral lower legs with clinical lymphoedema sonography is falsely negative. Conclusion: Early lymphoedema is only detectable with the lymphoscintigraphic function test. In the case of clinical lymphoedema clinical examination is more reliable than sonography.

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Efficiency of 3% Non-epinephrine Mepivacaine Application During Intraligamentary Anesthesia With Positive and Negative Aspiration in Pain Sensitivity to Electric Current of Young Subject`s Upper Anterior Teeth Pulp:

Journal of Oral & Dental Health ◽

10.33140/jodh/01/01/00006 ◽

2017 ◽

Vol 1 (1) ◽

Keyword(s):

Pain Sensitivity ◽

Pain Threshold ◽

Young Subject ◽

Reference Level ◽

Maximum Effect ◽

Anterior Teeth ◽

Randomized Controlled Studies ◽

Group Methods ◽

Peak Increase ◽

Infiltration Anesthesia

Background: Separation methods of local anesthesia to diffuse and vascular must significantly affect the clinical effect of adrenaline containing local anesthetic (mepivacaine). The aim of this prospective, randomized, controlled studies µAde was to compare the degree of anesthesia of intact upper lateral incisor the cartridge ¼ 3% mepivacain without epinephrine in the group after the infiltration and after intraligamentary anesthesia (ILA) in the experimental group. Methods: Anesthesia performed computer syringe Sleeper One 86 subjects aged 20-23 years. In all cases, aspiration was performed. With pulp tester IVN-01 measured the pain threshold incisors and canines in microamperes during the anesthetic effect. Results: Reference level of all researched teeth (86 subjects) was ranged from 1 to 10 µA. Uniform pain threshold increase to 95 (±20) µA by 5 min. watched during infiltration anesthesia then this value gradually descended to reference level (by 20 min.). Peak single increase of pain threshold to 55 (±8,9) µA occurred immediately after 1st minute of ILA, then this value subsequently drops to reference level (10 µA) by 20 minutes. Difference between groups of infiltration and intraligamentary anesthesia (ILA+ red) and (ILA – green) presented on Chart 6. Conclusions: Infiltration anesthesia with mepivacaine without epinephrine smoothly diffusely increased the pain threshold of the front teeth, reaching a significant, maximum effect by 5 minutes. Intraligamentary injection immediately after administration created a peak increase in pain sensitivity at a lower level, almost without the participation of the diffuse component.

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Maisonneuve fracture

Perspectives in Surgery ◽

10.33699/pis.2020.99.2.77-85 ◽

2020 ◽

Vol 99 (2) ◽

pp. 77-85

Keyword(s):

Open Reduction ◽

Lower Leg ◽

Fracture Dislocation ◽

Deltoid Ligament ◽

Ct Reconstruction ◽

Distal Fibula ◽

Ct Examination ◽

Maisonneuve Fracture ◽

Fibular Fracture ◽

Wide Range

Introduction: Maisonneuve fracture (MF) is a generally known entity in ankle trauma. However, details about this type of injury can be found only rarely in the literature. For these reasons we have decided to perform a study on MF epidemiology and pathoanatomy. Methods: The group comprised 70 patients (47 men, 23 women), with the mean age of 48 years, who sustained an ankle fracture-dislocation involving the proximal quarter of the fibula. Ankle radiographs in three views and lower leg radiographs in two views were performed in all patients. A total of 59 patients underwent CT examination in three views, including 3D CT reconstruction in 49 of these patients. MRI was performed in 4 patients. Operative treatment was used in 67 patients; open reduction of the distal fibula into the fibular notch was opted for in 54 of them. Results: The highest MF incidence rate was recorded in the 5th decade in the whole group and in men, while in women the peak incidence was in the 6th decade. After the age of 50, the share of women significantly increased. In 64 cases, the fibular fracture was subcapital, and in 6 cases it involved the fibular head. In 24% of the patients, the fibular fracture was seen only in the lateral radiograph of the lower leg. Widening of the tibiofibular clear space was shown by radiographs in 40 cases. Posterior dislocation of the fibula (Bosworth fracture) and tibiofibular diastasis were recorded in 2 cases each. An injury to the anterior and posterior tibiofibular ligaments was found in all 54 patients with open reduction of the distal fibula. A fracture of the medial malleolus was identified in 27 cases (39%) and a complete lesion of the deltoid ligament in 36 cases (51%); in 7 cases (10%) the medial structures were intact. A fracture of the posterior malleolus occurred in 54 (77%) patients. Osteochondral fracture of the talar dome was diagnosed in 2 patients and compression of the articular surface of the distal tibia in the region of the fibular notch in 1 patient. Conclusion: Maisonneuve fracture includes a wide range of injuries both to bone and ligamentous structures of the ankle. Therefore, CT examination is an indispensable part of assessment of this type of fracture.

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