LAUSR

INTRODUCTION The proximal course of the obturator nerve as related to the psoas major has been described differently among various authors. As this relationship is important for better understanding clinical presentations and during surgical approaches, the present study aimed to elucidate this anatomy via cadaveric dissection. METHODS Twenty obturator nerves from ten Caucasian cadaveric specimens underwent dissection and observations were made of the relationship between the nerve and psoas major muscle. RESULTS On all sides, the obturator nerve descended posterior to the psoas major and never through it. CONCLUSIONS These results might be important to clinicians who interpret radiology of this region, treat patients with presumed obturator compression syndromes, or to surgeons who operate near the intracavitary part of the obturator nerve.