The 3D micro- and nanostructure of wood has extensively been employed as a template for cost-effective and renewable electronic technologies. However, other electroactive components, in particular native lignin, have been overlooked due to the absence of an approach that allows access of the lignin through the cell wall. In this study, we introduce an approach that focuses on establishing conjugated-polymer-based electrical connections at various length scales within the wood structure, aiming to leverage the charge storage capacity of native lignin in wood-based energy storage electrodes.
View Article and Find Full Text PDFSupracondylar fractures of the humerus are frequent paediatric injuries. The aims of this study were to evaluate the applicability and reproducibility of the Gartland and Wilkins classification, the Baumann angle (BA) and the Anterior Humeral Line (AHL). This retrospective monocentric observational study was conducted on 217 patients.
View Article and Find Full Text PDFBackground: The treatment of congenital curvatures (bowing) of the tibia still represents a challenging problem for all pediatric orthopedic surgeons because of its unpredictable course, especially if pseudoarthrosis occurs after a pathologic fracture of the tibia.
Case Presentation: We describe the case of a child affected by an isolated curvature of his left leg. The congenital malformation was discovered at birth and no other pathological clinical finding was present.
Background: Conservative treatment in the Scheuermann's kyphosis obtain, during skeletal growth, remodelling of the deformed vertebras. In a previous paper on Scheuermann's kyphosis, we have studied the geometry variations of all vertebrae included in the curve, before and after the treatment. The purpose of this study was to confirm the effectiveness of conservative treatment in Scheuermann's kyphosis and was to evaluate and compare the variation of the vertebral geometry with the curve trend in Cobb degrees, before and after conservative treatment.
View Article and Find Full Text PDFBackground: The Progressive Action Short Brace (PASB) is a custom-made thoraco-lumbar-sacral orthosis (TLSO), devised in 1976 by Dr. Lorenzo Aulisa (Institute of Orthopedics at the Catholic University of the Sacred Heart, Rome, Italy). The PASB was designed to overcome the limits imposed by the trunk anatomy.
View Article and Find Full Text PDFInt J Immunopathol Pharmacol
November 2011
The study assessed the spontaneous repair of large critical full-thickness defects (FTD) in not mature and still growing sheep model and compared repaired tissue after Pridie's technique to the same technique combined with type I collagen matrix. Thirty-six FTD were divided into group 1 (untreated), group 2 (treated according to Pridie's technique with 10.2 as value ratio of marrow stimulation), and group 3 (treated using Pridie's marrow stimulation technique, and covered by a type I collagen matrix) .
View Article and Find Full Text PDFTreatment of anterior cruciate ligament (ACL) injury in skeletally immature patients is controversial. The growth plate could be damaged if treated with the reconstruction techniques used to treat instability in adults. For this reason, many authors postpone surgical treatment until skeletal maturity, but the acceptable length of time that treatment can be postponed without causing irreversible damage to the articular cartilage in children with ACL injury is unknown.
View Article and Find Full Text PDFJ Orthop Traumatol
September 2008
The authors report a case of acute knee injury in a 14-year-old teenager. The X-ray showed a so-called Segond's fracture: a small avulsed bone fragment, elliptical in shape, lying immediately below the external tibial plateau, a few millimeters from the lateral tibial cortex. The fracture site was in the portion of the tibial condyle which is linked to the middle third of the lateral capsule by meniscal tibial fibers.
View Article and Find Full Text PDFActa Neurochir (Wien)
March 2007
Background: We evaluated a sample of 28 patients surgically treated for lumbar stenosis (LS) four years after the first evaluation (length of the first follow-up mean 44.6 months, range 15-88) in order to evaluate the long-term follow-up of Quality of Life (QoL) after surgical treatment as LS may greatly impair the patients' QoL. We previously assessed QoL in 30 patients operated on for LS four years before, by performing a retrospective follow-up through the Short-Form 36 Health Survey (SF-36).
View Article and Find Full Text PDFBackground: In lumbar stenosis (LS) patients, clinical, neuroradiological and neurophysiological findings were not related to validated measurements of the outcomes that are more relevant to patients such as functional status and symptoms.
Method: We have retrospectively studied 30 patients surgically treated for LS. We have evaluated the patients by means of self-administered questionnaires (SF-36), clinical examination, and neuroradiological and neurophysiological measurements and we have registered preoperative and follow-up clinical and neurophysiological findings.
Stud Health Technol Inform
January 2005
The biomechanical behaviour of the spine significantly varies in relation to the age of the spine. Particularly, the elastic behaviour of the intervertebral discs has been proved to change during the spine growth, which changes the disc reaction to externally imparted forces. The biomechanical analysis of the G modulus of torsion rigidity of the intervertebral disc shows that the G values progressively increase through growth, which favours the progression of early scoliotic curves.
View Article and Find Full Text PDFStud Health Technol Inform
January 2005
Variation of vertebral morphology in Scheuermann's Kyphosis before and after orthopedic treatment is usually measured by the entity of the curve, using Cobb's method, and by vertebral wedging. But the lack of correlation between these parameters and the clinical evolution of the deformity, lead to the possibility of other alterations that can explain part of the kyphosis deformities before and after the treatment. In this group of alterations the inclination of anterior and posterior walls, that express the trapezoid deformity of vertebras, seem to be more reliable indicators of curve response to ortopedic treatment.
View Article and Find Full Text PDFSpine (Phila Pa 1976)
August 2004
Study Design: We performed a retrospective study using the Short Form-36 Health Survey questionnaire (SF-36), clinical examination, and neuroradiologic and neurophysiologic measurements.
Objectives: To evaluate patient outcomes, health-related quality of life (HRQoL), and clinical and neurophysiologic picture in a follow-up study of surgery for lumbar stenosis (LS).
Summary Of Background Data: In LS patients, clinical, neuroradiologic, and neurophysiologic findings were not related with validated measurement of the outcomes that are more relevant to patients such as functional status and symptoms.
Childs Nerv Syst
June 2003
Introduction: Discal calcification in childhood is rare. Calcifications are occasionally discovered during routine examinations, especially in the cervical spine. Generally, the calcification process is confined to the nucleus pulposus of the intervertebral disc.
View Article and Find Full Text PDFSpinal tuberculosis, or Pott's disease, has been known since ancient times; it was a common orthopaedic illness until 1950, but the progress of specific therapies confined it to third word countries; its resurgency in recent years in developed countries is due to drug resistance, immigration from endemic areas, and an increase in immunodeficient patients. Spinal disease is found in about 1% of all tuberculosis cases. Modern treatment consists of a diagnostic phase, based on clinical findings and imaging exams, and of a medical and surgical therapy.
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