Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "tendon" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 19
Tytuł:
Outcomes of surgery for giant cell tumors of the tendon sheath within the hand
Autorzy:
Żyluk, Andrzej
Owczarska, Ada
Powiązania:
https://bibliotekanauki.pl/articles/1391812.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
giant cell tumor of the tendon sheath
hand tumor
soft tissue tumor
tendon sheath
Opis:
Introduction: Giant cell tumor of the tendon sheath is the most common benign proliferative lesion involving the upper limb, characterized by relatively high recurrence rate after surgery. Aim: The objective of the study was a retrospective analysis of outcomes of the operative treatment of these tumors, in a longterm (a mean of 4,2 year) follow-up. Material and methods: Preoperative examination was performed in 58 patients, 36 females (62%) and 22 males (38%), in a mean age of 41 years, and treatment outcomes were assessed in 47 persons (81% of the operated patients), at a mean of 4.2-year follow-up. The final assessment was performed in a form of phone interview. Results: The most common site of the tumors was the fingers – 42 cases (72%). In 31 patients (53%) the lesion had a well-defined capsule, and in 11 (19%) a satellite nodule was found around the main tumor. A total of 9 relapses (21%) occurred, all within the first 2 years following surgery. Two patients had a next episode of recurrence after the second operation. In 8 out of the 9 patients with a recurrence, the primary lesion did not have a well-defined capsule. In 38 patients who had no relapse, 31 were completely symptom-free, whereas 7 complained of mild pain of the scar and/or numbness of a part of the involved finger. Conclusions: The main factor that impacted the high rate of recurrence was incomplete tumor excision, which resulted from inadequately accurate surgery and the tumor morphology (having no well-defend capsule). The role of operating with the use of magnifying devices and keeping a greater surgical margin at resection of the non-capsulated lesions was emphasized, as it could translate into reducing the recurrence rate.
Źródło:
Polish Journal of Surgery; 2020, 92, 6; 16-21
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A revised surgical concept of anterior cruciate ligament replacement in a rabbit model : preliminary investigations
Autorzy:
Ficek, K.
Wieczorek, J.
Stodolak-Zych, E.
Kosenyuk, Y.
Powiązania:
https://bibliotekanauki.pl/articles/284158.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
ACL reconstruction
tendon implant
resorbable material
Opis:
In this project the anterior cruciate ligament (ACL) replacement in a rabbit model was performed for the preclinical phase of investigations of a new form of biomaterial i.e. polymer beads (granules). This material, based on resorbable aliphatic polyester (polylactide - PLA) was used as a filler of the bone tunnels to enhance tendon-to-bone healing. The high specific surface area and well known biocompatibility of this material designated it as an osteoconductive agent in reconstructive ligament surgery. Additionally, a new surgical concept was proposed which retains the natural elasticity of the harvested tendon. This method ensures fixation of the grafted tendon within the bone tunnels in their entire length.
Źródło:
Engineering of Biomaterials; 2012, 15, 113; 33-34
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidant properties of Artemisia absinthium accelerate healing of experimental Achilles tendon injury in rabbits
Właściwości antyoksydacyjne Artemisia absinthium przyspieszające gojenie w doświadczalnym uszkodzeniu ściegna Achillesa u królików
Autorzy:
Hoseinian, A.
Moslemi, H.R.
Sedaghat, R.
Powiązania:
https://bibliotekanauki.pl/articles/71335.pdf
Data publikacji:
2018
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
antioxidative property
Artemisia absinthium
antioxidant
Achilles tendon
rabbit
Opis:
Delayed tendon healing is still found to be among the complications that occur most often after tendon repair. The role of local injection of Artemisia absinthium was evaluated in healing of experimental Achilles tendon injury in rabbits. In nine adult New Zealand rabbits a partial thickness tenotomy was created on both hindlimbs. A. absinthium extract and normal saline were respectively injected daily to treatment and control groups for three days. On the day 7 after injury, the tendon sections showed that healing rate in A. absinthium treated group was higher than that in control group. Furthermore, at days 14 and 28, comparison between A. absinthium treated group and control group demonstrated that A. absinthium increased the healing rate but with no significance. Results of this study have showed that application of A. absinthium extract can improve healing process of damaged Achilles tendon.
Powolne gojenie jest jedną z komplikacji pojawiających się najczęściej po operacji odbudowy ścięgna. Badano wpływ miejscowego podania Artemisia absinthium w iniekcji na gojenie doświadczalnego uszkodzenia ścięgna Achillesa u królików. U dziewięciu dorosłych królików nowozelandzkich przeprowadzono częściową tenotomię ścięgien obu kończyn tylnych. Następnie podawano w iniekcji wyciąg z A. absinthium lub sól fizjologiczną odpowiednio w grupie doświadczalnej i w grupie kontrolnej przez trzy dni.Siódmego dnia po uszkodzeniu okazało się, że tempo gojenia w grupie leczonej wyciągiem z A. absinthium było wyższe niż w grupie kontrolnej. Co więcej, porównanie przeprowadzone 14. i 28. dnia wykazało, że podanie A. absinthium przyspieszyło gojenie, ale nieistotnie.Wyniki tego badania pokazują, że podanie wyciągu z A. absinthium może przyspieszyć process gojenia uszkodzonego ścięgna Achillesa.
Źródło:
Herba Polonica; 2018, 64, 1
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic Variation as a Possible Explanation for the Heterogeneity of Pain in Tendinopathy: What can we learn from other pain syndromes?
Autorzy:
Mkumbuzi, Nonhlanhla S.
Posthumus, Michael
September, Alison V.
Collins, Malcolm
Powiązania:
https://bibliotekanauki.pl/articles/1942934.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
tendon pain
genetics
extracellular matrix genes
inflammation genes
COMT
Opis:
The mechanisms of pain in tendinopathy are unclear. Current theories implicate tendon structural changes, neovascularisation, inflammation or changes in central pain processing. As with other types of musculoskeletal pain, tendon pain has high interindividual variability and, as with other types of pain, this could be attributed to genetic variation. Notably, the association between certain genetic polymorphisms and susceptibility to tendinopathy is well established in the literature. Therefore, the investigation of the mechanisms of tendon pain should also extend to include genetic variation as a possible explanation for the clinical features of tendon pain. This review summarises the current knowledge on genetic contributors to chronic pain and highlights findings that are relevant to chronic tendon pain. In particular, based on the current hypotheses on the possible sources of tendon pain, it focuses on findings that relate to genes that encode structural connective tissue components, inflammatory markers, ion channels and catecholamines and how they may relate to chronic tendon pain. In the absence of a definitive mechanism of tendon pain, an a priori genetic approach that is guided by these current hypotheses may help elucidate the mechanisms of tendon pain which may allow a more rational approach to research and treatment.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2021, 36; 57-72
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fibroma of the Tendon Sheath – A Rare Hand Tumor
Autorzy:
Heckert, Reed
Bear, Jonathan
Summers, Thomas
Frew, Michael
Gwinn, David
McKay, Patricia
Powiązania:
https://bibliotekanauki.pl/articles/1397016.pdf
Data publikacji:
2012-12-01
Wydawca:
Index Copernicus International
Tematy:
fibroma
tendon sheath
FTS
soft tissue tumor
hand lesion
Opis:
Fibroma of the tendon sheath (FTS) is a rare, benign, soft tissue lesion. Clinically, FTS presents similarly to the more common giant cell tumor of the tendon sheath. It is distinguished histologically by the lack of giant cells, foamy histiocytes and synovial cells. We presented a case of FTS involving the common tendon sheath surrounding the flexor tendons leading to the third metacarpal. A 63-year-old man presented with a 3-month history of a painless mass in his right palm that had recently tripled in size. Examination demonstrated a 5x4 cm firm, nodular, superficial mass that was adherent to the overlying skin. Radiographs of the hand revealed a soft tissue mass without bony abnormality. Ultrasound demonstrated a solid, heterogeneous and hypoechoic mass and computed tomography demonstrated that the mass centered predominantly at the mid and distal portions of the third metacarpal. The patient underwent excisional biopsy of the lesion and a palmar, longitudinal incision was made from the wrist to the third metacarpal. Submitted histologic sections revealed a well-circumscribed lesion closely resembling hyalinized collagen. Neither vascular proliferations, necrosis, nor mitoses were observed. Similarly, multinucleated giant cells, pigment-laden macrophages, and inflammatory cells were also not identified. A diagnosis of FTS was rendered. We provided an additional rare case to the literature of a FTS and highlight the need to consider this entity in the differential diagnosis for any soft tissue lesion in the hand. Three months post surgery the patient demonstrated full range of motion of the hand
Źródło:
Polish Journal of Surgery; 2012, 84, 12; 651-656
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Giant cell tumor of tendon sheath in the pediatric population – review
Autorzy:
Kopcik, Katarzyna
Koberling, Agnieszka
Koper, Jan
Bichalska-Lach, Magda
Rudzki, Marek
Waniczek, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2203243.pdf
Data publikacji:
2023-06-07
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
orthopedics
pediatric oncology
giant cell tumor of tendon sheath
Opis:
Giant cell tumor of tendon sheath is a rare and benign so-fttissue tumor, which is even less common in the pediatric population. It may be connected with chromosomal translocations, oeftn the 1p11-13. Symptoms include pain, swelling, palpable mass or limited range of motion. Magnetic resonance is the diagnostic method of choice. Histopathological image obtained from biopsy should be also evaluated. The gold standard of treatment is total surgical resection of the tumor, as incomplete excision may result in recurrence. Physicians should also consider the future function of the aefcted joint or limb. Our aim was to review the available literature about GCTTS in the pediatric population. Kopcik K, Koberling A, Koper J, Bichalska-Lach M, Rudzki M, Waniczek D. Giant cell tumor of tendon sheath in the pediatric population - review. Eur J Transl Clin Med. 2023;6(1):64-69.
Źródło:
European Journal of Translational and Clinical Medicine; 2023, 6, 1; 64-69
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-field magnetic resonance imaging of a normal anatomy of the rabbit common calcanean tendon
Autorzy:
Skalec, A.
Janeczek, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087532.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
animal model
rabbit
anatomy
hf-MRI
common calcanean tendon
Źródło:
Polish Journal of Veterinary Sciences; 2019, 2; 431-433
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Results of Early and Delayed Treatment of Injuries of the Extensor Tendons of the Fingers in Own Material
Autorzy:
Deskur, Anna
Deskur, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1054912.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
damage to the extensor digitorum tendon
early and delayed treatment
Opis:
The aim of this study was to evaluate the results of early and delayed surgical treatment and the rehabilitation of patients with traumatic injury in zone I of the extensor tendon of the fingers II–V. 47 patients after traumatic, closed damage of the extensor tendons of the fingers II–V of the hand were treated and examined. 17 women (36.2%) and 30 men (63.8%) aged 14–80 years were included in the study. Patients with a delayed first degree damage of the extensors tendon, as well as fourth degree damage, according to the Doleyle scale qualified for surgical treatment. Surgical treatment consisted of suturing the tendon band or restoring its attachment to the phalanx bone, as well as the arthrodesis of the distal interphalangeal (DIP) joint with Kirschner wire in extension. The wire was removed after 6 weeks. Rehabilitation treatment was carried out in order to restore a full range of motion of the fingers. Patients were under constant supervision of the medical team. The examination of the patients took place before and 3 months after the surgery. The presence of the pain was assessed by means of a 10-point VAS scale (Visual Analog Scale). A goniometer was used to measure the range of motion of patient’s fingers. Crawford’s scale was used to assess the results of treatment of injuries to the extensor tendons of the fingers. The early stages of treatment to these yielded excellent results in 84.2% of patients, 14.3% good results, 17.8% of satisfactory results and 3.6% of patients had poor results. The differences in the results were not statistically significant. Further operative intervention should be considered for patients with extensive damage to the tendon of the extensor finger with a greater detachment of a fragment of phalanx bone shortly after the injury. In patients with extensive damage to the tendon of the extensor finger with greater detachment of bone fragment of phalanx further surgery in the early period after injury should be considered.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2016, 13, 1; 117-122
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A biomechanical model of operated achilles tendon
Autorzy:
Stavrov, V. P.
Lashkovski, V.
Sviridenok, A.
Powiązania:
https://bibliotekanauki.pl/articles/387190.pdf
Data publikacji:
2009
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
ścięgno Achillesa
biomechanika
modelowanie
odbudowa
Achilles tendon
biomechanics
modelling
recovery
Opis:
The paper discusses a biomechanical model reflecting deformation and tear of a tendon part, namely, ellipric in cross-section strand formed by stochastically located collagen fibers whose strain to stress relation obeys the exponential law. Recovery of the tendon by a plastic reinforcement is shown to result in elevated rigidity and shorter limiting elongation of the strand proportionally to the reinforced portion length, the strength of the restored strand being preserved almost fully. The limiting deformation of the recovered strand made with incisions for adaptation of the ends increases the more the deeper are the incisions, their number and the total length of the areas being adapted. This, nevertheless, decreases essentially the breaking load during further loading.
Źródło:
Acta Mechanica et Automatica; 2009, 3, 4; 69-72
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of impairment and restitution of hand function in a group of patients with total damage to the extensor pollicis longus and in a group of patients with damage to the flexor pollicis longus tendon after surgical treatment
Porównanie ubytku oraz odbudowy funkcji ręki w grupie pacjentów z całkowitym uszkodzeniem ścięgna prostownika długiego kciuka i w grupie z uszkodzeniem ścięgna zginacza długiego kciuka leczonych operacyjnie
Autorzy:
Szczechowicz, Jakub
Jamka, Krzysztof
Pieniążek, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1798770.pdf
Data publikacji:
2016
Wydawca:
Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie
Tematy:
tendon injuries
dynamic splinting
rehabilitation
urazy ścięgien
aparatowanie dynamiczne
rehabilitacja
Opis:
The thumb constitutes 40% of the whole hand function, and damage to the extensor pollicis longus (EPL) and/or the flexor pollicis longus (FPL) tendons of the thumb results in its significant limitation. The main factors contributing to damage of the EPL and/or FPL tendons are mechanical injuries - cuts and spontaneous ruptures. The aim of the study was to compare values of thumb and whole hand function loss and restoration as a result of the implemented physical therapy in patients with total damage to the EPL tendon with the values obtained by the study group 2 comprised of patients with damage to the FPL tendon. The study involved 25 patients of the Specialized Hand Therapy Center in Krakow. 15 of them had ruptured continuity of the EPL tendon (study group), and 10 suffered damage to the FPL tendons (control group). The study included measurements of active motion of the thumb and wrist and superficial sensation. On the basis of these tests, functional impairment was measured using the methodology according to Swanson. The study included assessment of muscle strength in terms of global and precision grips using a dynamometer. Statistically signifcant functional improvement was noted for the thumb and whole hand as well as muscle strength in both groups. The values of functional loss differed between the two groups. The indicators of functional improvement were greater in patients with damage to the EPL tendon. Functional physical therapy is an important factor determining the return of function in the thumb and whole hand after total damage to the EPL and FPL tendons. Szczechowicz J., Jamka K., Pieniążek M. Comparison of impairment and restitution of hand function in a group of patients with total damage to the extensor pollicis longus and in a group of patients with damage to the flexor pollicis longus tendon after surgical treatment. Med Rehabil 2016; 20(3): 5-12. DOI: 10.5604/01.3001.0009.5009
Wstęp: Kciuk stanowi o 40% funkcji całej ręki, a uszkodzenie ścięgna prostownika długiego kciuka (EPL) i/lub ścięgna zginacza długiego kciuka (FPL) prowadzi do jej znacznego ograniczenia. Głównymi czynnikami wpływającymi na uszkodzenie ścięgna EPL i/lub FPL są urazy mechaniczne – przecięcia i samoistne zerwania. Cel badań: Celem pracy było porównanie wartości ubytku oraz odbudowy funkcji kciuka i całej ręki w efekcie wdrożonej fizjoterapii w grupie pacjentów z całkowitym uszkodzeniem ścięgna EPL z grupą kontrolną pacjentów z uszkodzeniem ścięgna FPL. Materiał i metody: Badaniami objęto 25 pacjentów Specjalistycznego Ośrodka Rehabilitacji Ręki w Krakowie. U 15 z nich doszło do przerwania ciągłości ścięgna EPL (grupa badana 1), a u 10 uszkodzeniu uległo ścięgno FPL (grupa badana 2). Przeprowadzone badania obejmowały pomiary czynnej ruchomości kciuka i nadgarstka oraz czucia powierzchownego. Na podstawie tych badań obliczono ubytek funkcjonalny wg metodyki Swansona. Badania objęły również ocenę siły mięśniowej w zakresie ścisku globalnego i chwytów precyzyjnych przy użyciu dynamometru. Wyniki: Wykazano istotną statystycznie poprawę funkcjonalną kciuka i całej ręki oraz siły mięśniowej w obu badanych grupach. Wartości ubytku funkcjonalnego różniły się pomiędzy badanymi grupami. Wskaźniki poprawy funkcji były większe w grupie pacjentów z uszkodzeniem ścięgna EPL. Wnioski: Fizjoterapia funkcjonalna jest ważnym czynnikiem decydującym o powrocie funkcji kciuka i całej ręki po całkowitych uszkodzeniach ścięgien EPL i FPL.
Źródło:
Medical Rehabilitation; 2016, 20(3); 5-12
1427-9622
1896-3250
Pojawia się w:
Medical Rehabilitation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of different suture techniques for Achilles tendon repair in rat model using collagen scaffolds
Autorzy:
Gabler, C.
Gierschner, S.
Tischer, T.
Bader, R.
Powiązania:
https://bibliotekanauki.pl/articles/306448.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ścięgno
model zwierzęcy
biomechanika
tendon repair
suture techniques
scaffolds
animal model
Opis:
Tendon injury is an increasing problem in medicine due to aging of the population and increased activity demands. Many rodent animal models are used in order to evaluate tendon reconstruction. Although tendon reruptures are a known problem, the outcomes of tendon repair in animal models are rarely discussed in the literature. The goal of the present experimental study was to compare the primary fixation stability of three suture techniques for repair of Achilles tendon defects in a rat model using a collagen scaffold. Methods: Cadaveric left hind limbs of Sprague-Dawley rats were prepared with an Achilles tendon defect of 3 mm and rejoined using a collagen scaffold. Three suture configurations (simple, simple stitch with additional framing suture, and modified Mason–Allen stitch; n = 5 each) underwent tensile testing until complete failure was observed. Results: Under a load of a mean value of 6.6 N, the failure load of simple stitches was the significantly lowest ( p < 0.01). Both, modified Mason–Allen stitches and simple stitches with additional framing suture showed a mean failure load of more than 14 N. Regardless of the suture technique, most of the samples showed failure of tendon due to suture tear-out. The suture material as well as the scaffold remained mostly intact. Conclusions: Although simple end-toend suture techniques are common in the literature, stitches with more suture strands should be preferred. Using techniques like an additional framing suture or modified Mason–Allen stitch, maximum failure load can be doubled and the risk of tendon rerupture may be decreased in vivo.
Źródło:
Acta of Bioengineering and Biomechanics; 2018, 20, 2; 73-77
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanobiology of soft tissues: FT-Raman spectroscopic studies
Autorzy:
Gąsior-Głogowska, M.
Komorowska, M.
Hanuza, J.
Mączka, M.
Będziński, R.
Kobielarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/115507.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
Raman spectroscopy
collagen
tendon
aorta
soft tissues
mechanical properties
uniaxial tensile test
Opis:
FT-Raman spectroscopy was used to investigate microstructural changes in the secondary protein structure of soft tissues subjected to increasing levels of macroscopic strain. Main protein bands at 938 cm-1 assigned as v(Cα–C), 1668 cm-1 — amide I and 1268 cm-1 — amide III are sensitive to applied strain and undergo wavenumber shifting. Other main vibrational modes at 1004 cm-1 assigned to the phenyl ring breathing mode and 2940 cm-1 (n(CH3,CH2)) remain unaltered. Spectroscopic results were compared with the mechanical relations obtained from the standard protocol of uniaxial tensile tests carried out in a testing machine. A clear correlation between Raman band shifting and the level of mechanical stress was established. Initially the load is transferred through elastin and then gradually also by collagen. It was proved that transferring loads by soft tissues involves changes in structural protein conformation. This process was described in detail for a tendon. It was also confirmed that mechanical properties of soft tissues depend on collagen and elastin fiers orientation.
Źródło:
Challenges of Modern Technology; 2011, 2, 3; 8-11
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomechanical evaluation of tendon connection with novel suture techniques
Autorzy:
Chen, Z.
Wang, J.
Wei, J.- S.
Hou, Z.-Y.
Li, M.
Chen, Q.-X
Powiązania:
https://bibliotekanauki.pl/articles/306902.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ścięgno Achillesa
IFLL
biomechanika
internal fixation with limited loop
Achilles tendon
biomechanics
Opis:
Achilles tendon rupture is a severe injury with poor curative effect due to its anatomical characteristic and mechanical peculiarity. Internal fixation of limited loop (IFLL) with steel-wire has been applied on patients with tendon rupture to fix the broken ends before physical rehabilitation. The purpose of this study is to investigate the biomechanical property and radiological characteristic of such suture technique for the repairment of tendon rupture. Methods: Tendons of pigs’ hint feet were separated for the biomechanical study. Suture surgery was performed according to the protocol of IFLL. Biomechanical Testing Machine was adopted to conduct the biomechanical tensile load examination. The maximal load, elastic modulus and tendon stiffness of the stitched tendons with or without reinforcement were examined. Results: The maximum tensile load of the stitched tendons using IFLL reached 1/4 of the uninjured tendon’s maximum tensile load, indicating that such suture technique is capable of providing enough tension for the ruptured tendon. Surprisingly, tendons fixed with titanium wire showed the highest load tension, which was comparable to the undamaged tendon. Therefore, we found the biomechanical basis of using IFLL in effectively connecting the rupture ends of tendons. Conclusions: In conclusion, we provide biomechanical evidence for the use of IFLL in treatment of Achilles tendon rupture, by providing enough strength for the ankle function. Such suture technique could help the patients with better rehabilitation and reduced in-hospital stay after Achilles tendon injury.
Źródło:
Acta of Bioengineering and Biomechanics; 2018, 20, 1; 135-141
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of the Achilles tendon healing process: can artificial intelligence be helpful?
Autorzy:
Kapiński, Norbert
Zieliński, Jakub
Borucki, Bartosz A.
Trzciński, Tomasz
Ciszkowska-Łysoń, Beata
Zdanowicz, Urszula
Śmigielski, Robert
Nowiński, Krzysztof S.
Powiązania:
https://bibliotekanauki.pl/articles/306348.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
rezonans magnetyczny
obrazowanie medyczne
sztuczna inteligencja
tendon traumas
magnetic resonance
medical imaging
artificial intelligence
deep learning
Opis:
The aim of this study was to verify improved, ensemble-based strategy for inferencing with use of our solution for quantitative assessment of tendons and ligaments healing process and to show possible applications of the method. Methods: We chose the problem of the Achilles tendon rupture as an example representing a group of common sport traumas. We derived our dataset from 90 individuals and divided it into two subsets: healthy individuals and patients with complete Achilles tendon ruptures. We computed approx. 160 000 2D axial cross-sections from 3D MRI studies and preprocessed them to create a suitable input for artificial intelligence methods. Finally, we compared different training methods for chosen approaches for quantitative assessment of tendon tissue healing with the use of statistical analysis. Results: We showed improvement in inferencing with use of the ensemble technique that results from achieving comparable accuracy of 99% for our previously published method trained on 500 000 samples and for the new ensemble technique trained on 160 000 samples. We also showed real-life applications of our approach that address several clinical problems: (1) automatic classification of healthy and injured tendons, (2) assessment of the healing process, (3) a pathologic tissue localization. Conclusions: The presented method enables acquiring comparable accuracy with less training samples. The applications of the method presented in the paper as case studies can facilitate evaluation of the healing process and comparing with previous examination of the same patient as well as with other patients. This approach might be probably transferred to other musculoskeletal tissues and joints.
Źródło:
Acta of Bioengineering and Biomechanics; 2019, 21, 1; 103-111
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of changes in the length and cross-sectional dimension of autogenous grafts from semitendinosus and gracilis tendons used for anterior cruciate ligament (ACL) reconstruction in patients with active growth plates: MRI analysis
Ocena zmian długości i wymiaru poprzecznego autogennego przeszczepu ze ścięgien mięśnia półścięgnistego i smukłego użytego do rekonstrukcji więzadła krzyżowego przedniego (ACL) u pacjentów z aktywnymi chrząstkami wzrostowymi: analiza MRI
Autorzy:
Ciszewski, Andrzej
Zarębska-Mróz, Aneta
Powiązania:
https://bibliotekanauki.pl/articles/20311524.pdf
Data publikacji:
2023-11-20
Wydawca:
Wydawnictwo Exemplum
Tematy:
ACL reconstruction
paediatric population
MRI tendon graft evaluation
rekonstrukcja ACL
populacja dziecięca
ocena przeszczepu ścięgnistego w MRI
Opis:
Introduction. In recent years, there has been an increase in anterior cruciate ligament (ACL) injuries during childhood and adolescence. Aim. The aim of this study is to observe the diameter and length of the graft change in the postoperative period. Materials and methods. The study group consisted of 21 adolescents (11 boys and 10 girls) who underwent ACL reconstruction using hamstring and gracilis tendon grafts. MRI evaluations were performed at 3-6 and 24-26 months postoperatively to assess the width and length of the graft. The graft cross-sectional dimension was measured at the mid-substance of the tendons on sagittal scans in T1 and T2-weighted sequences. Length measurement was performed on axial ACL scans at its central portion (assessing mid-substance length). The collected measurements from both postoperative periods were compared and statistically analysed. Results. MRI analysis conducted postoperatively showed a statistically significant decrease in graft cross-sectional dimension, from an average 7.21-5.82 mm. The intra-articular graft length measured in MRI at 3-6 months post-surgery averaged 21.52 mm, while the length measured at 24-26 months post-surgery averaged 22.42 mm. Conclusions. Postoperative MRI analysis of reconstructed ACLs in adolescents with active growth plates demonstrated a reduction in graft cross-sectional dimension and a slight increase in graft length.
Wstęp. W ostatnich latach obserwuje się wzrost uszkodzeń więzadła krzyżowego przedniego w okresie dziecięcym i młodzieżowym. Cel. Celem pracy jest zaobserwowanie czy średnica i długość przeszczepu zmienia się w okresie pooperacyjnym. Materiał i metody. Grupę badaną stanowiło 21 nastolatków (11 chłopców i 10 dziewczynek), u których przeprowadzono rekonstrukcję ACL z przeszczepem ze ścięgien mięśnia półścięgnistego i smukłego. 3-6 oraz 24-26 miesięcy po zabiegu operacyjnym wykonano MRI w celu oceny średnicy i długości przeszczepu. Wymiar średnicy przeszczepu mierzono w środkowej, śródstawowej części ścięgien na skanach strzałkowych w sekwencjach T1 i T2 zależnych. Pomiar długości dokonano na skanach osiowych ACL w jego centralnej części (oceniono śródstawową długość). Zebrane wymiary z obu okresów pooperacyjnych porównano i zanalizowano statystycznie. Wyniki. Analiza badań MRI, wykonana po rekonstrukcji, 21 kolan wykazała statystycznie istotne zmniejszenie wymiaru średnicy z średnio 7,21-5,82 mm. Długość wewnątrzstawowa przeszczepu w badaniu rezonansu magnetycznego wykonanego 3-6 miesiąca od operacji wyniosła średnio 21,52 mm. Pomiar długości więzadła po 24-26 miesiącach od operacji wyniósł średnio 22,42 mm. Wnioski. Pooperacyjna analiza MRI zrekonstruowanych ACL u dzieci z aktywnymi chrząstkami wzrostowymi wykazała zmniejszenie średnicy oraz niewielkie wydłużenie przeszczepu.
Źródło:
Chirurgia Narządów Ruchu i Ortopedia Polska; 2023, 88, 4; 183-186
0009-479X
2956-4719
Pojawia się w:
Chirurgia Narządów Ruchu i Ortopedia Polska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies