著者

PUHAN HE JENNIFER CAUGHEY R. SHANE TUBBS JOE IWANAGA

出版者

Kurume University School of Medicine

雑誌

The Kurume Medical Journal (ISSN:00235679)

巻号頁・発行日

pp.MS682016, (Released:2023-05-12)

参考文献数

18

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Summary: Background: The purpose of this study was to investigate the structure of the incisive canal using dry maxillae harvested from human cadavers. Methods: Seven dry maxillae were harvested from adult Caucasian human cadavers. The incisive canals in all specimens were observed from an intraoral viewpoint with the naked eye and under a surgical microscope with 20× magnification. Results: All specimens had a single incisive foramen leading to different numbers of canals. Two specimens had a single canal (Type I), two were double (Type II), and three had triple canals (Type III). In both type I specimens, the canal was centered in the incisive foramen. Type II had a septum between the two canals. This septum was irregular in shape near the entrance of the canal but smooth inside the canal. The canals were positioned asymmetrically within the foramen. Type III had two septa between the three canals. Again, those located near the entrance of the canal were irregular while those inside the canal were smooth. The orientation of the lumina differed from one another in the type III canals. Conclusion: The study identified morphological variations in the anatomy of the incisive canal, underscoring the importance of pre-surgical planning in the administration of local anesthesia, placement of dental implants, or removal of impacted teeth in the anterior maxillary region.

著者

JOE IWANAGA FRANCISCO REINA BASEM ISHAK MIGUEL ANGEL REINA AARON S. DUMONT R. SHANE TUBBS

出版者

Kurume University School of Medicine

雑誌

The Kurume Medical Journal (ISSN:00235679)

巻号頁・発行日

vol.68, no.2, pp.75-80, 2021-06-30 (Released:2023-07-03)

参考文献数

17

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Summary: Background: Our goal was to revisit the innervation of the adductor muscles of the thigh and add new evidence to currently existing knowledge. Methods: Ten thighs from five fresh frozen cadavers were dissected. Obturator nerve innervation to the pectineus, obturator externus, adductor brevis, adductor magnus, adductor longus, and gracilis was documented. Results: The adductor longus and gracilis were innervated by the anterior branch in 100%, and the adductor magnus was innervated by the posterior branch in 100%. The adductor brevis was supplied by both the anterior and posterior branches in 90%. The obturator externus was innervated by the posterior branch in 60% and a direct branch from the main trunk in 10%. No innervation of the obturator externus by the obturator nerve was found in 30%. Conclusions: The obturator externus and adductor brevis need to be explored further to clarify their innervation.

著者

SHOGO KIKUTA JOE IWANAGA BASEM ISHAK AARON S. DUMONT R. SHANE TUBBS

出版者

Kurume University School of Medicine

雑誌

The Kurume Medical Journal (ISSN:00235679)

巻号頁・発行日

vol.67, no.1, pp.1-4, 2020-03-31 (Released:2022-03-11)

参考文献数

23

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Summary: This paper aimed to better describe the anatomy of the superficial anterior atlanto-occipital ligament of the craniocervical junction and discuss this ligament’s potential function and clinical implications. A broad literature review on the anatomical features and findings of the superficial anterior atlanto-occipital ligament was performed. The superficial anterior atlanto-occipital ligament is located anterior to the anterior atlanto-occipital membrane. However, the physiological role of the superficial anterior atlanto-occipital ligament is still unclear due to a lack of anatomical and biomechanical studies although one study has suggested that this ligament is a secondary stabilizer of the craniocervical junction. Further studies are needed to clarify the function and anatomy of the superficial anterior atlanto-occipital ligament.