Chronic pain syndromes and their treatment iii. the piriformis syndrome
- 1 July 1979
- journal article
- case report
- Published by Springer Nature in Canadian Journal of Anesthesia/Journal canadien d'anesthésie
- Vol. 26 (4) , 305-308
- https://doi.org/10.1007/bf03006291
Abstract
The piriformis is a deep-seated muscle, most of its muscular portion being part of the dorsal wall of the pelvis. The lateral portion and its insertion is extra-pelvic and lies deep to the glutei. Like more superficially located and therefore more easily accessible skeletal muscles, the piriformis too can be the seat of trigger points, giving rise to symptoms indistinguishable from those of other causes of low backache, unless a deliberate search is made for the signs specific to the piriformis syndrome. Having made a presumptive diagnosis, confirmation is. gained by palpating the muscle itself via rectum or vagina and reproducing the pain by digital pressure. If this test also is positive, the muscle is injected, the approach being either through the sciatic notch, from the perineum, or through the vagina. Immediate relief of pain is experienced after the solution of local anaesthetic and steroid has been deposited deep within the fleshy portion of the muscle. Le syndrome du muscle pyramidal du bassin décrit la douleur originant des zones gachettes de ce muscle profondément situé et difficilement accessible à ľexamen. Ľimportance de syndrome est due au fait qu’il imite la lombalgie qui est très fréquente et dont les causes sont multiples. Heureusement ses manifestations sont précises et il peut être diagnostiqué par des manœuvres spécifiques lorsqu’on examine un malade pour une lombalgie. De plus ce syndrome se traite de la même façon que les zones gachettes de tout autre muscle squelettique par ľinjection ďanesthésiques locaux. Le muscle est accessible par la grande échancrure sciatique, à travers le périnée ou par le vagin. La douleur disparait très rapidement après une injection dans la partie charnue du muscle pyramidal situé en avant du sacrum.Keywords
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