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Post-Traumatic Longitudinal Atlanto-Occipital Dissociation without Neurodeficits Treated with Visor (Head-Neck-Chest ) Orthosis - a Rare Case Report and Review of the Literature.
J Orthop Case Rep
December 2024
Department of Spine Surgery, Children Hospital Westmead, Sydney, Australia.
Introduction: Death is the most common outcome of longitudinal atlanto-occipital dissociation (L-AOD). Even though rare, survival is commonly seen in the pediatric population. This study reports a successful outcome of a pediatric patient with an L-AOD without neurodeficits, immobilized in a visor (head-neck-chest) orthosis.
View Article and Find Full Text PDFPatterns of Sexual Dimorphism, Static Allometry, and Modularity in the Skull of the Ethiopian White-Footed Mouse, (Rodentia: Muridae).
Zoolog Sci
December 2024
The Kyoto University Museum, Kyoto University, Kyoto 606-8501, Japan.
Article Synopsis
- - The study examined sexual dimorphism in the skull of the Ethiopian white-footed mouse using geometric morphometrics, revealing nonsignificant differences in cranial size and shape between males and females, but significant differences in mandibular size.
- - Discriminant analysis showed no notable differences in skull features between sexes, and allometric patterns were similar for both, indicating that growth patterns affected both male and female skulls similarly.
- - Overall, findings suggest sexual monomorphism in the mouse's skull, implying that factors like growth-related change and functional requirements may influence skull morphology without affecting sexual differences.
Adult maxillary expansion: CBCT evaluation of skeletal changes and determining an efficiency factor between force-controlled polycyclic slow activation and continuous rapid activation for mini-screw-assisted palatal expansion - MASPE vs. MARPE.
Head Face Med
December 2024
Department of orthodontics, Universitat international de Catalunya (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona, 08195, Spain.
Aim: This consecutive retrospective study compared Mini-implant Assisted Slow Palatal Expansion (MASPE) with rapid palatal expansion (MARPE) using a bone-borne skeletal expander in adults with a narrow maxilla. CBCT scans analyzed transverse changes and potential pterygoid process deformation before (T1) and after expansion (T2).
Materials And Methods: The Force Controlled PolyCyclic (FCPC) SLOW palatal expansion group (FCPC-MASPE-G) comprised 35 adults aged 18-54 years and received a skeletal expander limiting expansive force only allowing 500 cN at the activation wrench (force control).
Effect of bone-borne maxillary skeletal expanders on cranial and circummaxillary sutures: A cone-beam computed tomography study.
Korean J Orthod
November 2024
Department of Orthodontics, School of Dentistry, Kyung Hee University, Seoul, Korea.
Article Synopsis
- The study examines the impact of two types of bone-borne maxillary expansion devices (C-expander and ATOZ expander) on cranial and circummaxillary sutures in patients with calcified midpalatal sutures, utilizing cone-beam computed tomography (CBCT) for analysis.
- A total of 81 patients participated, and significant changes in suture widths were observed after maxillary expansion, with notable increases in various sutures for both devices while some suture widths specifically changed differently between the groups.
- The findings indicate that while both expanders affect the sutures in the naso-maxillo-zygomatic area, the C-expander reduces specific circum-zygomatic suture widths, and
Distraction osteogenesis application in bone defect caused by osteomyelitis following mandibular fracture surgery: a case report and literature review.
BMC Musculoskelet Disord
October 2024
Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Clinical Research Center for Craniofacial Deformity, College&Hospital of Stomatology, Guangxi Medical University, Nanning, 530021, China.
Background: Osteomyelitis secondary to mandibular fracture surgery is rare and complete surgical debridement of necrotic infected tissues is an optimal treatment for it. Subsequent reconstruction is required for bone defect caused by operation. Autogenous, allograft and synthetic bone graft substitutes have become widespread in bone defect treatment.
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