Relationship of the Obturator Nerve and Psoas Major: Anatomic Study with Application to Avoiding Iatrogenic Injuries

The proximal course of the obturator nerve as related to the psoas major has been described differently among various authors. Because this relationship is important for better understanding of clinical presentations and during surgical approaches, this study aimed to elucidate this anatomy via cada...

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Bibliographic Details
Published in:World neurosurgery 2020-04, Vol.136, p.e365-e370
Main Authors: Iwanaga, Joe, Warner, Tyler, Scullen, Tyler A., von Glinski, Alex, Ishak, Basem, Bui, C.J., Dumont, Aaron S., Tubbs, R. Shane
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Anatomy
Cadaver
Delivery
Female
Humans
Iatrogenic Disease - prevention & control
Male
Middle Aged
Nerve injury
Neurosurgical Procedures - adverse effects
Neurosurgical Procedures - methods
Obturator nerve
Obturator Nerve - anatomy & histology
Psoas major
Psoas Muscles - anatomy & histology
Transpsoas approach
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Summary:The proximal course of the obturator nerve as related to the psoas major has been described differently among various authors. Because this relationship is important for better understanding of clinical presentations and during surgical approaches, this study aimed to elucidate this anatomy via cadaveric dissection. Twenty obturator nerves from 10 white cadaveric specimens underwent dissection. Observations were made of the relationship between the nerve and psoas major muscle. On all sides, the obturator nerve descended posterior to the psoas major and never through it. These results might be important to clinicians who interpret radiology of this region, to clinicians who treat patients with presumed obturator compression syndromes, or to surgeons who operate near the intracavitary part of the obturator nerve.
ISSN:1878-8750
1878-8769
DOI:10.1016/j.wneu.2020.01.008