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Accuracy of augmented reality navigated surgery for placement of zygomatic implants: a human cadaver study.
PeerJ
December 2024
Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, Netherlands.
Purpose: Placement of zygomatic implants in the most optimal prosthetic position is considered challenging due to limited bone mass of the zygoma, limited visibility, length of the drilling path and proximity to critical anatomical structures. Augmented reality (AR) navigation can eliminate some of the disadvantages of surgical guides and conventional surgical navigation, while potentially improving accuracy. In this human cadaver study, we evaluated a developed AR navigation approach for placement of zygomatic implants after total maxillectomy.
View Article and Find Full Text PDFCompensatory behavior for mental workload induced by freeway destination signs.
Traffic Inj Prev
December 2024
Intelligent Transportation Systems Research Center, Wuhan University of Technology, Wuhan, Hubei, China.
Objective: Exit ramps are accident-prone areas of freeways. One of the reasons for this is the information overload induced by destination signs, which makes them challenging to recognize and may even result in tension or mistakes. This study examined the cognitive workload that destination signs place on drivers and the compensatory behavior they use to counteract the additional workload.
View Article and Find Full Text PDFCesarean section with operation on placental support as an adapted EXIT procedure for fetal thyroid goiter: A case report and literature review.
Int J Gynaecol Obstet
December 2024
Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
The ex-utero intrapartum treatment (EXIT) procedure is a specialized delivery strategy that extends utero-placental-fetal circulation to convert a potential neonatal emergency condition into a condition that is compatible with postnatal life. Cesarean section with operation on placental support is an EXIT technique that requires a relatively short duration of placental support and few skilled medical personnel and specialized instruments; it can successfully treat selected fetal indications. In the present study, we report a case of fetal thyroid goiter as an example of a fetal anomaly requiring the procedure.
View Article and Find Full Text PDFAnatomical and Micro-CT Assessment of the First Metatarsal Head Vascularization and Soft Tissue Envelope Following Minimally Invasive Chevron Osteotomy for Hallux Valgus Deformity.
Foot Ankle Int
November 2024
Human Anatomy Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.
Background: Minimally invasive surgical (MIS) chevron-type osteotomy for hallux valgus (HV) treatment offers a surgical alternative to open surgery with minimal surgical dissection and a hypothetical decreased risk for soft tissue complications. The objectives of this study were to assess the incidence of injuries to the soft tissue envelope and to the blood supply of the first metatarsal head through gross dissection and, using micro-computed tomography (micro-CT), to identify the safe position to perform the MIS chevron-type osteotomy of the first metatarsal head based on the anatomical data.
Methods: Twenty cadaveric specimens with HV were used for the study.
Ezh2 Delays Activation of Differentiation Genes During Normal Cerebellar Granule Neuron Development and in Medulloblastoma.
bioRxiv
November 2024
Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA.
Medulloblastoma (MB) is the most common malignant brain tumour in children. The Sonic Hedgehog (SHH)-medulloblastoma subtype arises from the cerebellar granule neuron lineage. Terminally differentiated neurons are incapable of undergoing further cell division, so an effective treatment for this tumour could be to force neuronal differentiation.
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