Search results for "Ligament"
showing 10 items of 176 documents
Results of isolated posterolateral corner reconstruction
2010
Abstract Background Isolated posterolateral corner (PLC) tears are relatively rare events. Various surgical techniques to treat posterolateral knee instability have been described; because surgical results are linked to cruciate reconstructions it has been difficult to date to define whether one surgical procedure has better prognosis than another. The goal of this study is to determine the clinical outcome of PLC reconstruction following fibular-based technique. Materials and methods We retrospectively evaluated a case series of patients who received isolated PLC reconstruction between March 2005 and January 2007. Ten patients were surgically treated for isolated injuries and were availabl…
Biomechanical comparison between the modified rolling-hitch and the modified finger-trap suture techniques
2016
Purpose: The purpose of this study was to characterize the biomechanical effect of two grasping suture techniques used during ligament reconstruction: the modified rolling-hitch (MRH) and the modified finger-trap (MFT). Methods: Flexor profundus tendons were harvested from fresh pig hind-leg trotters. Each specimen was mounted on an electro-mechanic universal testing machine (Instron 3367). In half of all tendons (15 specimens), the suture was passed around the tendon following the MRH knot (Group 1). In the remaining half of all tendons (15 specimens), the suture was passed over a distance of 30 mm according to the MFT suture technique (Group 2). As per standard intra-operative technique, …
Impact of oral contraceptive use and menstrual phases on patellar tendon morphology, biochemical composition, and biomechanical properties in female …
2013
Sex differences exist with regards to ligament and tendon injuries. Lower collagen synthesis has been observed in exercising women vs. men, and in users of oral contraceptives (OC) vs. nonusers, but it is unknown if OC will influence tendon biomechanics of women undergoing regular training. Thirty female athletes (handball players, 18–30 yr) were recruited: 15 long-term users of OC (7.0 ± 0.6 yr) and 15 nonusers (>5 yr). Synchronized values of patellar tendon elongation (obtained by ultrasonography) and tendon force were sampled during ramped isometric knee extensor maximum voluntary contraction to estimate mechanical tendon properties. Furthermore, tendon cross-sectional area and lengt…
Valoración funcional de pacientes intervenidos de ligamentoplastia de ligamento cruzado anterior con la técnica de doble fascículo versus técnica mon…
2018
La rotura del LCA es una lesión muy frecuente, que afecta predominantemente a sujetos jóvenes y con un grado de actividad elevado, con lo que resulta irrenunciable conseguir una recuperación funcional óptima con el tratamiento, generalmente quirúrgico. El objetivo de la presente Tesis doctoral fue evaluar, mediante un análisis biomecánico, la alteración funcional de la marcha y del equilibrio de pacientes con rotura del LCA y la recuperación funcional tras la intervención quirúrgica de la lesión, realizada con dos técnicas distintas: ligamentoplastia mediante la técnica del monofascículo o mediante la técnica del doble fascículo. El presente estudio se ha realizado en 64 sujetos, 27 sujetos…
Eagle syndrome compared with stylohyoid syndrome: complete ossification of the stylohyoid ligament and joint
2017
A 65-year-old man presented with a history of type 2 diabetes, chronic obstructive pulmonary disease, and non-alcoholic fatty liver. He had had no injuries to, or operations on his neck, but had had right submandibular and retroauricular pain for years. Computed tomography with 3-dimensional reconstruction (Figs. 1 and 2) showed elongation of both styloid processes associated with pseudoarticulation of the hyoid bone on the right side. This confirmed the complete ossification of the stylohyoid ligament, but the patient did not want an operation to resolve it. Sin financiación 1.260 JCR (2017) Q3, 65/91 Dentistry, Oral Surgery & Medicine, 138/200 Surgery UEV
Proximal Tibiofibular Joint Reconstruction With Autogenous Semitendinosus Tendon Graft
2013
Isolated and chronic anterolateral instability of the proximal tibiofibular joint (TFJ) is an uncommon condition, generally linked to an unrecognized or unhealed dislocation of the TFJ. Clinically, abnormal anterior movement of the head of the fibula is detected. In acute injuries conservative management should be preferred, whereas surgical treatment have been advocated in patients with chronic TFJ instability. Authors describe a new surgical reconstruction technique for chronic instability of the proximal TFJ using an autogenous semitendinosus tendon. The graft is passed through fibular and tibia tunnels and fixed with 2 interference screws. The tibial tunnel is reamed from the posterolat…
Blocks of the Trunk and Perineum
1988
Intercostal nerve block was derived from thoracic paravertebral block. Its origin can thus be traced to the beginning of the century (see Sect. VII. B).
Sagittal Plane Hip, Knee, and Ankle Biomechanics and the Risk of Anterior Cruciate Ligament Injury: A Prospective Study
2018
Background: Stiff landings with less knee flexion and high vertical ground-reaction forces have been shown to be associated with an increased risk of anterior cruciate ligament (ACL) injury. The literature on the association between other sagittal plane measures and the risk of ACL injuries with a prospective study design is lacking. Purpose: To investigate the relationship between selected sagittal plane hip, knee, and ankle biomechanics and the risk of ACL injury in young female team-sport athletes. Study Design: Case-control study; Level of evidence, 3. Methods: A total of 171 female basketball and floorball athletes (age range, 12-21 years) participated in a vertical drop jump test usin…
Valore del segno del doppio legamento crociato posteriore nell'imaging con RM del ginocchio
2008
Questo studio è stato condotto in maniera retrospettiva su 2436 esami di risonanza magnetica (RM) di ginocchio eseguiti nel periodo compreso tra Gennaio 2006 e Ottobre 2007. Gli esami sono stati analizzati usando come unico criterio diagnostico per la definizione del segno del doppio legamento crociato posteriore (LCP) la visualizzazione diretta di un frammento in gola intercondiloidea parallelo ed inferiore al LCP. Tale segno è stato riscontrato in 56 casi, di cui 50 successivamente sottoposti ad artroscopia che ha confermato la diagnosi in tutti i casi. Tale segno è risultato pertanto altamente sensibile e specifico nella diagnosi di rotture meniscali a manico di secchio This study was ca…
Biological Effects of New Hydraulic Materials on Human Periodontal Ligament Stem Cells.
2019
Background: The aim of this study was: to evaluate the biological properties of new hydraulic materials: Bio-C Repair and Bio-C Sealer. Methods: Periodontal ligament stem cells were exposed to several dilutions of Bio-C Repair and Bio-C Sealer. The ion release profile and pH were determined. Metabolic activity, cell migration and cell survival were assessed using the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT), wound-healing assays and Annexin assays, respectively. Cells were cultured in direct contact with the surface of each material. These were then analyzed via scanning electron microscopy (SEM) and energy dispersive X-ray (EDX). Statistical differences were ass…