title: [Usefulness of ultrasound sonography in performing posterior sacroiliac ligament injection in elderly patients].
abstract: BACKGROUND
  The sacroiliac joint (SIJ) is recognized as a potential source for low back pain especially in elderly people. Previous studies indicated that in patients with SIJ pain, posterior sacroiliac ligament injections are more effective than intra articular injections. The aim of this study was to assess usefulness of ultrasound sonography (US) in performing posterior sacroiliac ligament injection.
  
  
  METHODS
  We examined SIJ and ligaments, and injected local anesthetics using ultrasonography. US guided needle insertions were performed. We also examined the cadevar of a 74-year-old woman to examine SIJ anatomy.
  
  
  RESULTS
  US was performed in 61 male and 97 female outpatients (N = 158) with a mean age of 72.8 ± 10.9. US examination of the SIJ is difficult to perform because of its complex anatomy, and wide range of normal variations, and relative inaccessibility by surface scanning. The long posterior sacroiliac ligament (LPSL) is visualized as a hyper echoic laminated linear structure. We were able to confirm needle placement and area affected by local anesthetics.
  
  
  CONCLUSIONS
  Our study suggests that US can be useful in performing posterior sacroiliac ligament injections. Sufficient anatomical knowledge and extensive US experience are essential in performing these injections.
authors: Kanna
authors: K
authors: Nakamura
authors: Sonoko
authors: S
authors: Matsumoto
authors: Tatsuya
authors: T
authors: Enomoto
authors: Atsuko
authors: A
authors: Hara
authors: Hiromasa
authors: H
authors: Mitsuhata
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000779:Anesthetics, Local / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007267:Injections; D008023:Ligaments, Articular / Q000000981:diagnostic imaging*; D017116:Low Back Pain / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D059408:Pain Management / Q000379:methods*; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging*; D014463:Ultrasonography
chemical_list: D000779:Anesthetics, Local