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Good clinical results have been reported with anatomic anterior cruciate ligament (ACL) reconstructions in which rectangular bone-patellar tendon-bone (BTB) grafts were fixed into rectangular bone tunnels made at anatomic ACL insertion sites of the femur and tibia (anatomic rectangular tunnel BTB ACL reconstruction). Notwithstanding these good results, some problems have remained unsolved, including procedural complexity and risk of damage to the femoral posterior tunnel wall, damage to nerves and blood vessels, and damage to cartilage. The purpose of this report is to present our technique of ACL reconstruction with BTB graft through a rectangular bone tunnel made with a rectangular retro-dilator. Our procedure may become a safe option for anatomic rectangular tunnel BTB ACL reconstruction because of the following advantages: (1) bone tunnels can be created more safely and accurately than in methods using transtibial and far medial portals, (2) the bone tunnel preparation procedure is less invasive than the standard outside-in method, (3) technical failure-related risks are lower because the guidewire is inserted only once, and (4) the operation time is shorter because the method is a single-bundle procedure.
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http://dx.doi.org/10.1016/j.eats.2017.03.018 | DOI Listing |
Biomed Phys Eng Express
August 2025
Universitätsmedizin Rostock, Südring 75, Rostock, 18059, GERMANY.
Objective: This study aims to develop canine radiotherapy phantoms and a dosimetry protocol for synchrotron microbeam radiation therapy (MRT).
Approach: Two canine head phantoms were designed based on computed tomography (CT) image sets obtained from veterinary patients. Polylactic acid polymer and calcium sulfate hemihydrate plaster were used to radiologically simulate soft tissue and bone.
J Nutr Sci
August 2025
Professional School of Human Nutrition, Faculty of Health Sciences, National University of Altiplano, Puno, Peru.
Infants born at high altitudes, such as in the Puno region, typically exhibit higher birthweights than those born at low altitudes; however, the influence of ethnicity on childhood anthropometric patterns in high-altitude settings remains poorly understood. This study aimed to characterise the nutritional status, body composition and indices, and somatotype of Quechua and Aymara children aged 6-10 years. A cross-sectional, descriptive, and comparative design was employed, with a simple random sampling of children from six provinces representative of the Puno region, including 1,289 children of both sexes.
View Article and Find Full Text PDFArch Orthop Trauma Surg
August 2025
Department of Orthopaedics, University Hospital Heidelberg, Heidelberg, Germany.
Introduction: The use of short stems has been a trend in shoulder arthroplasty within the last 15 years with excellent short- to mid-term clinical outcomes. Short stems anchor in the cancellous metaphysis and a high level of postoperative stability with absence of micro-movements at the bone-implant interface can be crucial for the following healing. The study aimed to assess the primary rotational stability of two uncemented short stems.
View Article and Find Full Text PDFJ Formos Med Assoc
August 2025
Department of Design and Engineering, Faculty of Science and Technology, Bournemouth University, UK; Department of Mechatronics Engineering, Faculty of Mechanical Engineering, University of Tabriz, Iran. Electronic address:
In this article, the performance of different geometries of specially designed fixation miniplates for mandibular symphyseal fracture is evaluated by investigating the effect of geometrical parameters on the biomechanical stability of the fracture. Experimental cone beam computed tomography (CBCT) images were used to generate and simulate the mandible model. Two novel miniplate geometries, including rectangular and elliptical designs, are presented to achieve better biomechanical performance than conventional design.
View Article and Find Full Text PDFArthrosc Tech
June 2025
Department of Orthopaedic Surgery, Jikei University School of Medicine, Tokyo, Japan.
Good long-term postoperative clinical results can be achieved after anterior cruciate ligament reconstruction using the quadriceps tendon (QT) as the graft. Anatomical rectangular tunnel anterior cruciate ligament (ACL) reconstruction is performed using a ribbon-shaped quadriceps tendon with bone (QTB) harvested in partial layers, considering that harvesting the transplanted tendon in all layers, including the joint capsule, may delay recovery from postoperative pain and muscle weakness. However, no consistent method for harvesting the QTB graft tendon has been established.
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