Louisiana Research Day Program Book 2025

Anatomy and Epidemiology

Anatomy and Epidemiology

Gabrielle Fouchi, OMS-II 1 ; Jackson Clayton, OMS-II 1 ; Jacob Krews, OMS-II 1 ; Devon Smith, OMS-II 1 ; Matthew Overturf, PhD 2 1 VCOM-Louisiana; 5 VCOM Lousiana, Department of Anatomical Sciences 43 A SUBHEPATIC CECUM IN CADAVERIC DISSECTION: CLINICAL AND EDUCATIONAL SIGNIFICANCE

Nicholas Villar, OMS-II; Kaitlin Phillips, OMS-II; Nicholas Wong, OMS-II; Kenny-Khai Vo, OMS-II; Jenna Dittmar, PhD VCOM-Louisiana 44 OSSEOUS CHANGES ASSOCIATIED WITH HALLUX VALGUS DEFORMITY

Context: Subhepatic cecums are rare conditions (0.3-0.5% of live births) that demonstrate a malrotation event during

of patients with abnormal presentation of appendiceal and colonic pathologies.

Objective: Hallux valgus (HV) is one of the most common deformities of the forefoot characterized by a lateral deviation of the first proximal phalanx (PP1) and in relation to the head of the first metatarsal (MT1). The aim of this project is to analyze the osseous changes associated with HV. Materials: The feet from 20 adult formalin embalmed cadavers located at VCOM-Louisiana (VCOM) in Monroe, Louisiana were assessed. Methods: The hallux valgus angle (HVA) was assessed radiographically and the first metatarsophalangeal (MTP) joints of each foot were disarticulated and skeletonized to allow them to be macroscopically assessed. HV was considered present if lateral deviation of the PP1 was greater than 20 degrees. A total of 18 features were recorded on each MT1, PP1, and sesamoid bone. These data were analyzed using Chi square or Fisher’s exact tests, as appropriate. Results: A total of 13 individuals had at least one MT1 with an HVA of greater than 20 degrees. Individuals with HV deformity more

commonly presented with bony exostoses on the medial aspect of the head of MT1, eburnation on the distal articular surface of the MT1, and flattening of the intersesamoidal ridge, though none of these relationships were statistically significant. Lytic lesions located on the medial aspect of the head were not observed, nor were any boney changes on the distal articular surface of PP1. Conclusions: Thus far, no statistically significant relationship between osseous features and HVA have been identified. Future research will focus on increasing sample size and seek to include cases of severe HV deformity (>40 degrees of lateral deviation). Significance: This is the first study to analyze the osseous changes of the first MTP joint and assesses its correlation with hallux valgus angle. Limitations: No cases of severe HV deformity (>40 degrees of lateral deviation) were present in this sample.

embryologic development. This condition is rare but presents unique challenges for appendicitis diagnosis due to the appendix’s displacement to the right upper quadrant compared to its traditional right lower quadrant location. Report of Case: In this case presentation, we demonstrated a subhepatic cecum during routine medical student dissection of the gastrointestinal system. Our patient was an 85-year-old male with past medical history significant for type 2 diabetes mellitus, atrial fibrillation, systolic congestive heart failure, and severe protein malnutrition. Further examination showed unique variation in ileocecal artery pathways in order to accommodate the malrotation. Conclusions: Through this unique presentation, our team could share the vasculature and colonic variation within this patient with the larger medical community. Despite its rarity, understanding of this developmental variation is beneficial for accurate diagnosis and treatment

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2025 Research Recognition Day