Oleh : Annisa Maharani
111 2016 2099
Pembimbing : dr. Muslimin Ali, Sp.An
Pendahuluan
Sindrom piriformis / piriformis syndrome
(PS) disebabkan oleh kontraksi otot
piriformis (piriformis muscle / PM) yang
berkepanjangan atau berlebihan. Karena
dekat dengan saraf skiatik, PS dikaitkan
dengan nyeri bokong, panggul, dan tungkai
bawah.
Epidemiologi
Nyeri punggung bawah dan skiatika terjadi
pada 40 juta kasus per tahun, kejadian PS
sekitar 2,4 juta kasus per tahun.
Pada sebagian besar kasus, PS terjadi pada
pasien paruh baya (usia rata-rata 38 tahun).
Rasio wanita banding pria yang mengalami
PS sebesar 6:1.
Anatomi
Anterior surface of lateral process of sacrum and
Origin gluteal surface of ilium at the margin of the greater
sciatic notch
Insertion Superior border of greater trochanter
Lateral rotator of the hip joint; also helps abduct the
Action
hip if it is flexed
Innervati
Piriformis nerve (L5, S1, S2)
on
Arterial Superior and inferior gluteal and internal pudendal
Supply arteries
The medical illustrations contained in this online atlas are copyrighted © 1997 by the University of Washington. They may not be utilized, reproduced, stored, or transmitted in any form or by any means, electronic or
mechanical, or by any information storage or retrieval system, without permission in writing from the University of Washington.
From: Piriformis Syndrome:Anatomic Considerations, a New Injection Technique, and a Review of the Literature
Anesthes. 2003;98(6):1442-1448.
Figure Legend:
Fig. 1. Posterior view of the sacrum, ilium, and greater trochanter of the femur, showing the course of the piriformis muscle, sciatic
nerve, and site of injection (X
).
Date of download: 3/12/2018 Copyright © 2018 American Society of Anesthesiologists. All rights reserved.
From: Piriformis Syndrome:Anatomic Considerations, a New Injection Technique, and a Review of the Literature
Anesthes. 2003;98(6):1442-1448.
Date of download: 3/12/2018 Copyright © 2018 American Society of Anesthesiologists. All rights reserved.
From: Piriformis Syndrome:Anatomic Considerations, a New Injection Technique, and a Review of the Literature
Anesthes. 2003;98(6):1442-1448.
Figure Legend:
Fig. 2. Fluoroscopic view of the needle in the piriformis muscle, which is outlined by the injected radiopaque dye. The needle is
inserted 1.5 ± 0.8 cm lateral and 1.2 ± 0.6 cm caudal to the lower border of the sacroiliac joint.
Date of download: 3/12/2018 Copyright © 2018 American Society of Anesthesiologists. All rights reserved.
From: Piriformis Syndrome:Anatomic Considerations, a New Injection Technique, and a Review of the Literature
Anesthes. 2003;98(6):1442-1448.
Figure Legend:
Fig. 3. Cadaver dissection showing the bipartite piriformis muscle. The tibial nerve passes below the piriformis muscle, whereas the
common peroneal nerve passes through the piriformis muscle. The piriformis muscle is colored to delineate its margins, and the
components of the sciatic nerve are colored to show their course.
Date of download: 3/12/2018 Copyright © 2018 American Society of Anesthesiologists. All rights reserved.
