We report a very rare case of a unilaterally absent piriformis muscle in a 60 year old woman. Accompanying variations comprised a common gluteal artery (instead of two distinct superior and inferior gluteal arteries), and an absent gemellus inferior muscle. The contralateral left side showed a normally developed piriformis muscle. In hominoids, the piriformis is constant, but is regularly missing in several other vertebrates. The piriformis muscle is an anatomical landmark for ultrasound investigations and ultrasound-guided interventions in the deep gluteal region such as a superior gluteal nerve block or even a sacral plexus block, also for any surgical approach such as total hip arthroplasty. A missing piriformis muscle therefore affects the orientation in the deep gluteal region and therefore the identification of the targeted structures.
Brenner E., Tripoli M., Scavo E., & Cordova A. (2019). Case report: absence of the right piriformis muscle in a woman. SURGICAL AND RADIOLOGIC ANATOMY, 41, 845-848 [10.1007/s00276-018-02176-6].
Data di pubblicazione: | 2019 | |
Titolo: | Case report: absence of the right piriformis muscle in a woman | |
Autori: | ||
Citazione: | Brenner E., Tripoli M., Scavo E., & Cordova A. (2019). Case report: absence of the right piriformis muscle in a woman. SURGICAL AND RADIOLOGIC ANATOMY, 41, 845-848 [10.1007/s00276-018-02176-6]. | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s00276-018-02176-6 | |
Abstract: | We report a very rare case of a unilaterally absent piriformis muscle in a 60 year old woman. Accompanying variations comprised a common gluteal artery (instead of two distinct superior and inferior gluteal arteries), and an absent gemellus inferior muscle. The contralateral left side showed a normally developed piriformis muscle. In hominoids, the piriformis is constant, but is regularly missing in several other vertebrates. The piriformis muscle is an anatomical landmark for ultrasound investigations and ultrasound-guided interventions in the deep gluteal region such as a superior gluteal nerve block or even a sacral plexus block, also for any surgical approach such as total hip arthroplasty. A missing piriformis muscle therefore affects the orientation in the deep gluteal region and therefore the identification of the targeted structures. | |
Settore Scientifico Disciplinare: | Settore MED/19 - Chirurgia Plastica | |
Appare nelle tipologie: | 1.01 Articolo in rivista |
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