Objectives . The study aimed to compare the accuracy of different methods data acquisition and reconstruction assess their usefulness for 3D printing tooth replicas. Methods 3-dimensional models molar canine teeth obtain utilizing CBCT examination with protocols, optical scanning was compared derived from micro-computed (micro-CT) using Geomagic Studio Qualify software. A pairwise comparison analysis standard deviation value mean distance given surfaces performed. Results Standard were...

Two-dimensional (2D) measurements of acetabular morphology and orientation are well known; there is less information on these characteristics in three dimensions. One important reason the lack standardized reference planes for pelvis, especially relation to spinopelvic unit; another that no method precisely assesses acetabulum three-dimensional (3D) based its axis rather than directions edges rim. We present an objective, highly reliable accurate, axis-based approach anthropometry...

Swelling and shrinkage anisotropy affect the susceptibility to an assembly of wooden elements by changing designed clearances or interference fits. This work described new method measure mounting holes’ moisture-induced shape instability its verification using three sets twin samples made Scots pinewood. Each set contained a pair with different grain patterns. All were conditioned under reference conditions (relative air humidity–RH = 60% temperature 20 °C), their moisture content (MC)...

Aim Lately, the diagnostic value of magnetic resonance imaging, Lasègue sign and classic neurological signs have been considered not accurate enough to distinguish radicular from non-radicular low back with leg pain (LBLP) a calculation symptomatic side muscle volume has indicated as probable valuable marker. However, only multifidus calculated so far. The main objective study was verify whether LBLP subjects presented pelvic atrophy compared healthy volunteers. second aim assess inter-rater...

Short-term vasodilatation in the pain area after dry needling (DN) of active trigger points (TrPs) was recorded several cases sciatica. Moreover, presence TrPs sciatica patients secondary to primary lesion suggested. Still, it is not known how often they occur and if every can provoke vasomotor reactions. The purpose this study evaluate prevalence among subacute response DN under infrared thermovision (IRT) camera control.Fifty consecutive Caucasian (mean age 41.2 ± 9.1y) with were diagnosed...

The aim of this study was to assess the validity and test-retest reliability Thermovision Technique Dry Needling (TTDN) for gluteus minimus muscle. TTDN is a new thermography approach used support trigger points (TrPs) diagnostic criteria by presence short-term vasomotor reactions occurring in area where TrPs refer pain. Method . Thirty chronic sciatica patients (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>n=15</mml:mi></mml:mrow></mml:math>TrP-positive...

Vasomotor responses to dry needling (DN) of trigger points (TrPs) under infrared thermovision (IRT) camera control and TrPs coexistence in chronic sciatica patients have never been studied. Materials Methods . Fifty consecutive were enrolled the study. DN IRT was performed for all regardless gluteus minimus (GM) active examination. Then, vasomotor response its agreement with examination evaluated. Results The prevalence GM 32%. provokes intensive vasodilatation TrPs-positive only,...

Sciatica has classically been associated with irritation of the sciatic nerve by vertebral disc and consequent inflammation. Some authors suggest that active trigger points in gluteus minimus muscle can refer pain similar way to sciatica. Trigger point diagnosis is based on Travel Simons criteria, but referred twitch response are significant confirmatory signs diagnostic criteria. Although vasoconstriction area a latent demonstrated, vasomotor reaction not examined. We report case...

Abstract Purpose Among various test methods for different human joints, the use of robot systems has attracted major interest and inherits potential to become a gold standard in biomechanical testing future. A key issue associated with those robot-based platforms is accurate definition parameters, e.g., tool center point (TCP), length or anatomical trajectories movements. These must be precisely correlated physiological parameters examined joint its corresponding bones. Exemplified hip...

Background: The newly proposed low back pain treatment requires case classification according to the mechanism (nociceptive, neuropathic or nociplastic) determine most effective therapeutic approach. However, there is a lack of objective tools for distinguishing these mechanisms. aim study was identify which symptoms, signs, and standard diagnostic parameters would allow predicting nociplastic (NP) subtype among leg (LBLP) patients. Methods: A retrospective analysis an LBLP case–control...

Abstract The article presents a new concept of combining the three dimensions (3D) person's manipulation space. data concern information about reach arms and biomechanical limiting load disabled person sitting in wheelchair. Measurement were acquired empirically, on original measuring station. included, respectively, arms' (static dynamic) or, alternatively, measurements forces. obtained processed into virtual 3D surfaces These provide required graphic model anthropotechnical data. Developed...

Background The significantly accelerated development of human society in the last millennium has brought about changes behavior and body mass that may have influenced bone morphology. Our objective was to analyze variation pelvic shape size males from modern medieval populations. Methods We obtained 22 girdles adult a cemetery located Cedynia, Poland. control group comprised 31 contemporary male pelves individuals inhabiting same region. analyzed parameters were: interspinous distance (ISD),...

Varied and complicated etiology of low back pain radiating distally to the extremities is still causing disagreement controversy around issue its diagnosis treatment. Most clinicians believe that source generally radicular. While some them postulate clinical significance sacroiliac joint syndrome, others demonstrate almost one in five people with experience symptoms indicative neuropathic component. To date, involvement has not been completely understood, different mechanisms are thought...

To see if three-dimensional (3D) methods could bring new understanding to acetabular changes in shape and orientation the spastic hip which direction(s) might change, is crucial for planning appropriate correction surgery.We performed a retrospective study of pelvic computed tomography (CT) examinations 20 consecutive patients (10 females, 10 males). The mean age was 12 years 9 months (SD 2y; range: 9-16y) at time CT examination. control group consisted 18 (36 acetabula) deceased individuals...

The trigger points (TrPs) related to chronic low back pain that mimic sciatica have been lately recognized and included in the International Classification of Diseases, 11th Revision. This study examined MATLAB software utility for objective stratification patients using Minimally Invasive Procedure (MIP). two diagnostic MIP parameters were: average temperature (ΔTavr) autonomic referred (AURP). Chronic with TrPs (n = 20) without were MIP. A significant increase both was confirmed thigh ROI...

Gluteal syndrome (GS) mimicking sciatica is a new disease that has been recently recognized and included in the International Classification of Diseases, 11th Revision. The present study examines nociplastic pain involvement GS patients using Skorupska protocol (SP) test provokes amplified vasodilatation area expected muscle-referred pain. A positive confirmed if there (i) development autonomic referred (AURP) (ii) an increase delta average temperature (Δ₸°) > 0.3 °C at end stimulation...

Although acetabulum orientation is well established anatomically and radiographically, its relation to the innominate bone has rarely been addressed. If explored, it could open discussion on patomechanisms of such complex disorders as femoroacetabular impingement (FAI). We therefore evaluated influence pelvic position structure acetabular spatial orientation. describe this clinical implications.This retrospective study was based computed tomography scanning three-dimensional models 31...

The Skorupska Protocol (SP) test is a new validated tool used to confirm nociplastic pain related muscles based on pathological autonomic nervous system (ANS) activity due muscle nociceptive noxious stimulation analyzed automatically. Two types of amplified vasomotor response are defined as possible: vasodilatation and vasoconstriction. Until now, among low back leg and/or sciatica subjects in the SP was confirmed. This case report presents an unusual within zone sciatica-like case....

Referred pain/sensation provoked by trigger points suits the nociplastic pain criteria. There is a debate over whether are related to peripheral phenomenon or central sensitization (CS) processes. considered possible sign of CS, which occurs probably mainly due abnormal activity immune and autonomic nervous systems. To confirm reactivity within referred zone active points, new diagnostic tool, Skorupska Protocol® (the SP test®), was applied. The test uses noxious stimulation (10 minutes dry...

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This article presents application of the Principal Component Analysis method for analysis geometry biological objects and computation three dimensional anthropometric database. In this work as fifteen human femur bones were used. The each bone was obtained by using 3D structural light scanner. For PCA all have to be described with same FEM mesh. To achieve this, modified fluid registration decomposes set into mean individual features (empirical modes) describing deviations from value. paper...