Snapping
Dotaz
Zobrazit nápovědu
With this case report, we introduced a rare and commonly overlooked cause of lateral snapping knee, a snapping popliteus in a 14-year-old female patient. She was initially treated for a lateral discoid meniscus, a common diagnosis in this age group. Because of the non-resolving symptoms, a second-look arthroscopy was performed and showed a popliteus tendon snapping over a tubercle on the lateral femoral condyle. Resection of the tubercle resulted with a successful outcome. In evaluating the snapping knee in young children, popliteus tendon should be kept in mind. Key words: snapping popliteus, tubercle, knee, arthroscopy, popping.
- MeSH
- artroskopie škodlivé účinky MeSH
- dítě MeSH
- femur MeSH
- kolenní kloub * diagnostické zobrazování chirurgie MeSH
- lidé MeSH
- mladiství MeSH
- nemoci kloubů * chirurgie MeSH
- předškolní dítě MeSH
- šlachy chirurgie MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mladiství MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- kazuistiky MeSH
The external snapping hip syndrome (coxa saltans) is characterized by palpable or audible snap on the lateral region of the hip during movements. The syndrome is relatively rare, surgical treatment follows after potential failure of conservative therapy, published groups of patients are usually small. Author deals with syndrome dividing, genesis, diagnostics, surgical and non- -surgical treatment. The own group of patients is presented and various operative techniques are discussed.
- Publikační typ
- abstrakt z konference MeSH
Je popsán případ jedenáctileté dívky s vnitřní lupavou kyčlí. Je diskutována anatomie musculus iliopsoas, diagnostika a léčba vnitřní lupavé kyčle. Je hodnocen rozhodující přínos dynamické magnetické rezonance, podle které se odvíjela další léčebná taktika.
The case reports the eleven-years-old girl suffering from internal snapping hip syndrome from the diagnostic and therapeutic point of view. The contribution of the magnetic resonance performed in the neutral and flection position is evaluated.
- Klíčová slova
- lupavá kyčel, musculus iliopsoas, dynamická magnetická resonance, tenotomie iliopsoatu,
- MeSH
- artralgie diagnóza etiologie terapie MeSH
- bederní svaly chirurgie patofyziologie patologie MeSH
- chůze (způsob) MeSH
- diagnostické techniky a postupy využití MeSH
- dítě MeSH
- kyčelní kloub anatomie a histologie patofyziologie patologie MeSH
- lidé MeSH
- magnetická rezonanční tomografie metody využití MeSH
- ortopedické výkony metody využití MeSH
- tendinopatie diagnóza chirurgie patofyziologie MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
Alpheid snapping shrimps (Decapoda: Caridea: Alpheidae) constitute one of the model groups for inferences aimed at understanding the evolution of complex structural, behavioural, and ecological traits among benthic marine invertebrates. Despite being a super-diverse taxon with a broad geographical distribution, the alpheid fossil record is still poorly known. However, data presented herein show that the strongly calcified fingertips of alpheid snapping claws are not uncommon in the fossil record and should be considered a novel type of mesofossil. The Cenozoic remains analysed here represent a compelling structural match with extant species of Alpheus. Based on the presence of several distinct snapping claw-fingertip morphotypes, the major radiation of Alpheus lineages is estimated to have occurred as early as 18 mya. In addition, the oldest fossil record of alpheids in general can now be confirmed for the Late Oligocene (27-28 mya), thus providing a novel minimum age for the entire group as well as the first reliable calibration point for deep phylogenetic inferences.
Trigger finger (TF) is a prevalent hand condition characterized by impaired tendon gliding and pulley thickening, leading to pain and functional limitations. This narrative review explores TF's functional assessment, sonographic findings, and conservative treatments. Tools like the Quinnell Grading System and Jamar Dynamometer effectively quantify severity and function, while ultrasound identifies hypoechoic A1 pulley thickening (> 0.62 mm) and tendon snapping. Conservative treatments, including splinting and tendon gliding exercises, reduce pain by 70% within weeks. Ultrasound-guided corticosteroid injections and percutaneous A1 pulley release improve outcomes with minimal complications. Integrating imaging and personalized therapies optimizes TF management, reducing surgical reliance.
PURPOSE OF THE STUDY: In this prospective randomised study, the short-term results of arthroscopic transcapsular iliopsoas tenotomy approached from the peripheral versus the central compartment for internal snapping hip syndrome are presented. MATERIAL AND METHODS: A group of 19 patients (15 women and four men; mean age, 24.3 years) who underwent arthroscopic transcapsular iliopsoas tenotomy for internal snapping hip syndrome in the period between September 2010 and December 2011 were prospectively evaluated. No injury, hip surgery or feeling of hip instability was recorded in their personal histories. Radiographs did not show any dysplasia, retroversion of the acetabulum or cam lesions. The patients were allocated to two groups using sealed envelope randomisation: Group 1 patients (n=10) were treated by tenotomy from the peripheral compartment and group 2 patients (n=9) underwent tenotomy from the central compartment during traction of the lower extremity. The evaluation included pre-operative 3T MRI findings, arthroscopically detected intra-articular lesions, duration of traction and post-operative complications. The pre-operative WOMAC scores were compared with those at one-year follow-up. In comparison of the two groups, the Mann-Whitney exact test was used for WOMAC scores and Fisher's exact test for post-operative complications. Statistical significance was set at a 0.05 level. RESULTS: In comparing post-operative complications, a significant difference (p=0.0468) between the groups was found only for genital paresthesia, which did not occur in group 1. The other differences were not statistically significant. The pre-operative WOMAC scores did not differ significantly between the groups (p=0.79). The post-operative WOMAC scores were significantly higher in group 1 (p=0.02). In each group the change in WOMAC scores was different and was statistically significant in group 1 (p=0.0014). Associated intra-articular hip pathologies, most frequently synovitis of the peripheral compartment, acetabular chondropathy, or labral lesions, were diagnosed in 90% of group 1 patients and in 66.7% of group 2 patients. DISCUSSION: Most of the authors comparing the results of two different ilioproas tenotomy techniques at one-year follow-up did not report any statistically significant differences in WOMAC scores between them. In accordance with the data reported, an increase in the post-operative WOMAC score, i.e., improvement of clinical outcome, was achieved in all our patients and, in group 1, it was significantly higher (p=0.0015), as compared with a similar study by Ilizaliturri. However, further follow-up of the patients and evaluation of long-term results will be necessary. CONCLUSIONS: The technique of arthroscopic ilioproas tenotomy approached from the peripheral compartment resulted in significantly fewer cases of genital paresthesia and provided significantly better clinical outcomes in comparison with tenotomy from the central compartment.
- MeSH
- artroskopie metody MeSH
- bederní svaly chirurgie MeSH
- dospělí MeSH
- kompartment syndrom diagnóza chirurgie MeSH
- kyčel chirurgie MeSH
- lidé středního věku MeSH
- lidé MeSH
- magnetická rezonanční tomografie MeSH
- mladý dospělý MeSH
- nemoci kloubů diagnóza chirurgie MeSH
- prospektivní studie MeSH
- šlachy chirurgie MeSH
- syndrom MeSH
- tenotomie metody MeSH
- úžinový syndrom chirurgie MeSH
- výsledek terapie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- randomizované kontrolované studie MeSH
- srovnávací studie MeSH
Nitric oxide (NO) is identified as a signaling molecule involved in many cellular or physiological functions including meiotic maturation and parthenogenetic activation of mammalian oocytes. We observed that nitric oxide donor SNAP was potent to induce parthenogenetic activation in Xenopus eggs. NO-scavenger CPTIO impaired the effects of SNAP, providing evidence for the effects of the latter to be specific upon NO release. In Xenopus eggs, SNAP treatment induced pigment rearrangement, pronucleus formation and exocytosis of cortical granules. At a biochemical level, SNAP exposure lead to MAPK and Rsk inactivation within 30 minutes whereas MPF remained active, in contrast to calcium ionophore control where MPF activity dropped rapidly. MAPK inactivation could be correlated to pronuclear envelope reformation observed. In SNAP-treated eggs, a strong increase in intracellular calcium level was observed. NO effects were impaired in calcium-free or calcium limited medium, suggesting that that parthenogenetic activation of Xenopus oocytes with a NO donor was mainly calcium-dependent.
- MeSH
- aktivace enzymů účinky léků MeSH
- aparát dělícího vřeténka účinky léků metabolismus MeSH
- benzoáty farmakologie MeSH
- donory oxidu dusnatého farmakologie MeSH
- faktor podporující zrání metabolismus MeSH
- imidazoly farmakologie MeSH
- kinetika MeSH
- mitogenem aktivované proteinkinasy metabolismus MeSH
- morfogeneze účinky léků MeSH
- ovum cytologie účinky léků metabolismus MeSH
- oxid dusnatý metabolismus MeSH
- partenogeneze MeSH
- progesteron farmakologie MeSH
- S-nitroso-N-acetylpenicilamin farmakokinetika MeSH
- vápník metabolismus MeSH
- Xenopus laevis metabolismus MeSH
- zvířata MeSH
- Check Tag
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Nitric Oxide (NO) has been involved in both intra- and extra-cellular signaling pathways in a wide range of organisms, and can be detected in some reproductive tissues. Based upon previous results reporting that NO-donor SNAP (s-nitroso-n-acetyl penicillamine) promoted the release from the metaphase II-anaphase II block in amphibian eggs, the aim of the present study was to assess the influence of SNAP on the activation of the molecular mechanisms triggering meiotic resumption of Xenopus oocytes, analogous to G2/M transition of the cell cycle. A high concentration of SNAP (2.5 mM) was found to inhibit the appearance of the white spot (meiotic resumption) and promoted alteration of spindle morphogenesis leading to atypical structures lacking bipolarity and correct chromosomes equatorial alignment. The medium acidification (pH = 4) promoted by SNAP specifically impacted the white spot occurrence. However, even when pH was restored to 7.4 in SNAP medium, observed spindles remained atypical (microtubule disorganization), suggesting SNAP impacted spindle assembly regardless of the pH. n-Acetyl-d,l-penicillamine disulfide, a degradation product of SNAP with the same molecular characteristics, albeit without release of NO, yielded spindle assemblies typical of metaphase II suggesting the specificity of NO action on meiotic spindle morphogenesis in Xenopus oocytes.
- MeSH
- aparát dělícího vřeténka účinky léků MeSH
- chromozomy metabolismus MeSH
- donory oxidu dusnatého farmakologie MeSH
- meióza účinky léků MeSH
- morfogeneze účinky léků MeSH
- oocyty cytologie účinky léků MeSH
- S-nitroso-N-acetylpenicilamin farmakologie MeSH
- Xenopus laevis MeSH
- zvířata MeSH
- Check Tag
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
