• Publikační typ
• abstrakty MeSH

Cílem práce bylo změřit změnu hloubky Speeovy křivky během nivelizace a změřit jaké množství její hloubky zůstane na další fáze léčby. Byl hodnocen soubor 36 pacientů léčených fixními aparáty, u kterých byly opakovaně zhotoveny sádrové modely dolního zubního oblouku před léčbou a v definovaných časových rozmezích během léčby: v čase T0 = v den nasazení fixního aparátu, v čase T1 =6 týdnů po nasazení fixního aparátu, v čase T2 = 12 týdnů po nasazení fixního aparátu. Modely byly vyfotografovány z levé a pravé strany. Na každé fotografii bylo zaznamenáno 16 bodů. Hloubka křivky byla měřena jako kolmice, která spojuje jednotlivé body s referenční rovinou. Byla zjištěna vzdálenost referenčních bodů od referenční roviny v čase T0, T1,T2a změna vzdálenosti v časových intervalech T0-T1, T1-T2, T0-T2. K největšímu vyrovnání křivky došlo v oblasti řezáků, za 12 týdnů léčby maximálně 0,12 mm, a to je 38% křivky. V oblasti premolárů bylo upraveno maximálně 0,40 mm, a to je 29% křivky. Během nivelizace došlo ke zvýšení skusu změnou v oblasti premolárů, ale jedná se pouze o desetiny mm. V průběhu léčby fixním aparátem nelze ztotožňovat fázi nivelizace a fázi, kdy dochází ke zvyšování skusu.

The aim of the study was to measure the size of the curve Spee during alignment as well as to measure how much of the curve remains for further stages of treatment. The sample of 36 patients treated with fixed appliances was evaluated. The plaster casts of the lower dental arch before treatment and In specified stages of treatment were used: at T0 = the day when the fixed appliance was applied, 71 = 6 weeks after beginning of treatment with fixed appliance, T2-12 weeks after the treatment start. Photographs were taken from both left and right sides. In each picture 16 points were assessed. The depth of the curve was measured as the perpenoicuiar connecting individual points and the reference plane. The distance of reference points from the reference plane was measured at T0, T1, 72, as well as the change of the distance in the inten/als 70-71, 77 -72, 70-72. The curve was best leveled in the area of incisors: the maximum of 0.12 mm after 12 weeks of the treatment, i.e. 38% of the curve. In the area of premolars the leveling reached the maximum of 0.40 mm, i.e. 29% of the curve. During the process of leveling the occlusion was raised due to the changes in premolar area. However, the extent of the change is only in tenth of mm. In treatment with fixed orthodontic appliances we cannot mix up the stage of alignment and the stage in which the bite is raised.

• MeSH
• lidé MeSH
• malokluze terapie   MeSH
• ortodoncie korekční metody   trendy   využití   MeSH
• ortodontické aparáty trendy   využití   MeSH
• ortodontické dráty využití   MeSH
• záznam mezičelistních vztahů metody   MeSH
• Check Tag
• lidé MeSH

Introduction. Different spine sagittal contours in classic and lumbar Scheuermann's disease are associated with various muscle imbalance. Material and methods. A randomized controlled trial of the efficacy of kinesiotherapy programs in patients with Scheuermann's kyphosis and lumbar Scheuermann's aged 16–26 years (mean age 20.6 ± 0.3 years) was performed. We evaluated the mobility of the spine and hip joints, the roentgenometric magnitude of thoracic kyphosis and lumbar lordosis, the parameters of EMG of the lumbar part of the muscles erector spinae using surface electrodes. Patients interviewed on the visual analogue scale (VAS), on the Oswestry Disability Questionnaire, version 2.0 (ODI), on the Pain and Anxiety Symptoms Scale (PASS) – 20. Results. After the treatment in groups with kinesiotherapy program was observed the increase of general spine mobility while bending forward, the increase of hip joint movements in sagittal plane and significant improvement VAS, ODI and PASS as compared with the control groups in the classic and atypical forms of the Scheuermann's disease, respectively. Discussion and Conclusion. We associate the efficiency of the kinesiotherapy program with applying a differential approach to prescribing the exercises according to the variation of sagittal spinal alignment.

• MeSH
• bederní obratle fyziologie   radiografie   MeSH
• cvičení MeSH
• dospělí MeSH
• elektromyografie MeSH
• hrudní obratle fyziologie   radiografie   MeSH
• kineziologie aplikovaná * metody   statistika a číselné údaje   MeSH
• kohortové studie MeSH
• kyčelní kloub fyziologie   MeSH
• lidé MeSH
• lumbalgie rehabilitace   MeSH
• měření bolesti MeSH
• mladiství MeSH
• mladý dospělý MeSH
• posturální rovnováha MeSH
• rozsah kloubních pohybů MeSH
• Scheuermannova nemoc * radiografie   rehabilitace   terapie   MeSH
• spokojenost pacientů MeSH
• statistika jako téma MeSH
• svalová hypertonie komplikace   rehabilitace   MeSH
• techniky fyzikální terapie * statistika a číselné údaje   MeSH
• výsledek terapie MeSH
• zádové svalstvo fyziologie   MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• Publikační typ
• hodnotící studie MeSH

UNLABELLED: MoTIVATION: Pairwise sequence alignment has received a new motivation due to the advent of recent patents in next-generation sequencing technologies, particularly so for the application of re-sequencing---the assembly of a genome directed by a reference sequence. After the fast alignment between a factor of the reference sequence and a high-quality fragment of a short read by a short-read alignment programme, an important problem is to find the alignment between a relatively short succeeding factor of the reference sequence and the remaining low-quality part of the read allowing a number of mismatches and the insertion of a single gap in the alignment. RESULTS: We present GapMis, a tool for pairwise sequence alignment with a single gap. It is based on a simple algorithm, which computes a different version of the traditional dynamic programming matrix. The presented experimental results demonstrate that GapMis is more suitable and efficient than most popular tools for this task.

• MeSH
• algoritmy * MeSH
• patenty jako téma MeSH
• sekvenční seřazení MeSH
• software * MeSH
• vysoce účinné nukleotidové sekvenování MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

This paper presents the utilization of progressive alignment principle for positional adjustment of a set of genomic signals with different lengths. The new method of multiple alignment of signals based on dynamic time warping is tested for the purpose of evaluating the similarity of different length genes in phylogenetic studies. Two sets of phylogenetic markers were used to demonstrate the effectiveness of the evaluation of intraspecies and interspecies genetic variability. The part of the proposed method is modification of pairwise alignment of two signals by dynamic time warping with using correlation in a sliding window. The correlation based dynamic time warping allows more accurate alignment dependent on local homologies in sequences without the need of scoring matrix or evolutionary models, because mutual similarities of residues are included in the numerical code of signals.

• MeSH
• algoritmy MeSH
• bakteriální RNA genetika   MeSH
• druhová specificita MeSH
• fylogeneze MeSH
• genom bakteriální * MeSH
• genomika metody   MeSH
• počítačové zpracování signálu MeSH
• RNA ribozomální 18S genetika   MeSH
• sekvenční seřazení metody   MeSH
• výpočetní biologie metody   MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Introduction. Variability of sagittal spinal-pelvic balance parameters results to a change of the types of standing. Material and methods. In the groups of asymptomatic volunteers (n=30 at the age of 20–30) and patients with lumbar degenerative disc diseases (n=42, at the age of 20–40) were investigated parameters of sagittal spinal-pelvic balance and the location of the lower limb joints relative to the line gravity. Results. In asymptomatic volunteers with all types of standing an optimal matching parameters of sagittal spinal-pelvic balance were noted. In patients a flattening of the lumbosacral sagittal contour compensated by an increase of the sagittal spinal list at the types of standing 1 and 2 (19.0% and 45.2%, respectively); one compensated by pelvis retroversion and hyperextension position in the hip joints at the types of standing 3 and 4 (23.9% and 11.9%, respectively). Discussion and Conclusion. Lumbar lordosis flattening – that is, flexing position of suprapelvic part of the body – and compensatory pelvic retroversion with the hip joints extension position create torque in the lumbosacral segment, which counteracts the persistent tension of stabilizing muscles of the lumbar spine. This mismatch of sagittal spinal-pelvic balance parameters creates a biomechanical conditions for the further progression of degenerative lumbar disc diseases.

• MeSH
• bederní obratle * fyziologie   radiografie   MeSH
• biomechanika * MeSH
• degenerace meziobratlové ploténky * patofyziologie   radiografie   MeSH
• dospělí MeSH
• gravitace MeSH
• lidé MeSH
• lordóza patofyziologie   radiografie   MeSH
• mladý dospělý MeSH
• pánev * fyziologie   radiografie   MeSH
• páteř radiografie   MeSH
• postura těla fyziologie   MeSH
• posturální rovnováha * fyziologie   MeSH
• studie případů a kontrol MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mladý dospělý MeSH

Úvod: Cílem naší studie bylo porovnání funkčního výsledku a radiografického postavení unikompartmentální náhrady kolenního kloubu (UKA) s využitím konvenčního nenavigovaného operačního postupu a pomocí počítačem asistované navigace. Metoda a materiál: Na našem pracovišti jsme od roku 2005 do roku 2012 implantovali 106 UKA. K implantaci bylo využito dvou typů UKA, 67 náhrad The PRESERVATION (DePuy) s využitím navigace a 39 náhrad Oxford Partial Knee (Biomet) bylo implantováno konvenční operační technikou. Bylo hodnoceno 104 mediálních UKA rozdělených do dvou skupin: konvenční operační technika a počítačem asistovaná operační technika. Hodnoty získané z pooperačního radiografického měření byly spárovány s funkčním výsledkem, který byl hodnocen podle The Knee Society Clinical Rating System (Knee score). Výsledky: Knee score skupiny operované pomocí navigace se zlepšilo z 58 předoperačně na 93 pooperačně. Knee score skupiny s konvenčním postupem se zlepšilo z 56 předoperačně na 91 pooperačně. Závěr: Počítačem asistovaná navigace umožňuje přesnější implantaci femorální i tibiální komponenty než konvenční operační technika. Přesto jsou pooperační funkční výsledky srovnatelné.

Introduction: The aim of our study was to compare the clinical outcome and radiographic alignment of unicompartmental knee arthroplasty (UKA) performed either with the use of conventional non-navigation technique or using computer-assisted navigation technique. Materials and Methods: At our department, we have performed 106 UKAs between 2005 and 2012. Two types of UKA transplants were used, 67 of UKAs were performed using The PRESERVATION (DePuy) with navigation and 39 UKAs used Oxford Partial Knee (Biomet.) and were performed using the conventional technique. We have evaluated 104 medial UKAs, divided into groups: conventional non-navigation technique and computer-assisted navigation technique. Postoperative radiographic measurement was performed and results were matched with clinical outcome postoperatively. This assessment was performed using The Knee Society Clinical Rating System (Knee score). Results: The group in whose cases navigation technique was used marked an improved Knee score from mean 58 preoperatively to 93 postoperatively. The "conventional" group's UKA Knee mean score improved from 56 preoperatively to 91 postoperatively. Conclusion: Computer-assisted navigation enables more exact alignment of the femoral and tibial component than conventional technique. In spite of this fact, the clinical outcome is comparable.

• Klíčová slova
• unikompartmentální náhrada,
• MeSH
• artróza kolenních kloubů chirurgie   MeSH
• biomechanika MeSH
• chirurgie s pomocí počítače MeSH
• lidé středního věku MeSH
• lidé MeSH
• miniinvazivní chirurgické výkony MeSH
• protézy kolene klasifikace   statistika a číselné údaje   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• totální endoprotéza kolene metody   statistika a číselné údaje   MeSH
• výběr pacientů MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• srovnávací studie MeSH

A wealth of evidence provides support for magnetic alignment (MA) behavior in a variety of disparate species within the animal kingdom, in which an animal, or a group of animals, show a tendency to align the body axis in a consistent orientation relative to the geomagnetic field lines. Interestingly, among vertebrates, MA typically coincides with the north-south magnetic axis, however, the mean directional preferences of an individual or group of organisms is often rotated clockwise from the north-south axis. We hypothesize that this shift is not a coincidence, and future studies of this subtle, yet consistent phenomenon may help to reveal some properties of the underlying sensory or processing mechanisms, that, to date, are not well understood. Furthermore, characterizing the fine structure exhibited in MA behaviors may provide key insights to the biophysical substrates mediating magnetoreception in vertebrates. Therefore, in order to determine if a consistent shift is exhibited in taxonomically diverse vertebrates, we performed a meta-analysis on published MA datasets from 23 vertebrate species that exhibited an axial north-south preference. This analysis revealed a significant clockwise shift from the north-south magnetic axis. We summarize and discuss possible competing hypotheses regarding the proximate mechanisms underlying the clockwise shifted MA and conclude that the most likely cause of such a shift would be a lateralization in central processing of magnetic information.

• MeSH
• druhová specificita MeSH
• funkční lateralita fyziologie   MeSH
• magnetické jevy * MeSH
• obratlovci fyziologie   MeSH
• orientace * MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

While magnetoreception in birds has been studied intensively, the literature on magnetoreception in bony fish, and particularly in non-migratory fish, is quite scarce. We examined alignment of common carps (Cyprinus carpio) at traditional Christmas sale in the Czech Republic. The sample comprised measurements of the directional bearings in 14,537 individual fish, distributed among 80 large circular plastic tubs, at 25 localities in the Czech Republic, during 817 sampling sessions, on seven subsequent days in December 2011. We found that carps displayed a statistically highly significant spontaneous preference to align their bodies along the North-South axis. In the absence of any other common orientation cues which could explain this directional preference, we attribute the alignment of the fish to the geomagnetic field lines. It is apparent that the display of magnetic alignment is a simple experimental paradigm of great heuristic potential.

• MeSH
• kapři fyziologie   MeSH
• magnetické jevy * MeSH
• obchod * MeSH
• orientace MeSH
• světlo MeSH
• voda MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika MeSH

PURPOSE OF THE STUDY The aim of the study was to find out whether the frequency and intensity of patellar pain can be affected by individual rotational alignment of the femoral component in total knee arthroplasty, as compared with the standard 3 degrees of external femoral rotation in conventional procedures. MATERIAL AND METHODS In randomly selected patients treated for knee osteoarthritis by total joint replacement between January 2007 and January 2011, the occurrence of patellar pain was assessed. The evaluated knees were allocated to two groups. Group 1 included 350 knee joints with conventional femoral rotational alignment, i.e., 3 degrees of external rotation. Group 2 comprised 380 knee joints with an individual rotational alignment of the femoral component based on the condylar twist angle. Post-operative anterior knee pain was assessed on the following scale: 1, no pain; 2, occasional mild pain; 3, moderate pain; 4, severe pain. RESULTS In group 1, 312 knee joints were free from pain, 15 occasionally experienced mild pain, 15 had moderate and eight had severe pain. A total of 23 revision operations were performed for patellar pain at the anterior knee and pain around the patella refractory to non-steroidal anti-rheumatic and rehabilitation therapy. In group 2, there were 331 pain-free knees, 48 with occasional mild pain, one with moderate pain and no knee with severe pain. No revision surgery was required. One patient with moderate patellar pain underwent surgery for spinal canal stenosis; after that knee pain was only mild. The groups were compared, as to pain assessment results, using the test of equality of relative frequencies, i.e., score categories 1+2 versus 3+4 of 350 (group 1) equalled 23 (6.57%) were compared with 1 (0.26%) of 380 (group 2); the difference was significant (p < 0.001). Using the same test for comparison of the frequency of repeat operations, i.e., 23 (0.57%) of 350 (group 1) versus 0 (0%) of 380 (group 2), also gave a significant result (p = 0.001). DISCUSSION Mild and occasional pain was recorded in both groups, suggesting that femoral component malrotation is not the only cause of patellar pain following total knee arthroplasty. A markedly lower incidence of moderate and severe pain and no need for revision surgery found in group 2 provides evidence that the use of individual rotational alignment of the femoral component is fully justified. CONCLUSIONS An individual rotational alignment of the femoral component can significantly reduce the incidence of moderate to severe patellar pain or even need for revision surgery.

• MeSH
• lidé středního věku MeSH
• lidé MeSH
• patela patofyziologie   MeSH
• pooperační bolest * etiologie   prevence a kontrola   MeSH
• rotace MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• totální endoprotéza kolene * klasifikace   metody   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• práce podpořená grantem MeSH
• srovnávací studie MeSH