title: Usefulness of a myofascial trigger point injection for groin pain in patients with chronic prostatitis/chronic pelvic pain syndrome: a pilot study.
abstract: OBJECTIVE
  To investigate the therapeutic effectiveness of trigger point injection into the muscles around the groin in patients with clinically diagnosed chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS).
  
  
  METHODS
  Prospective, unicenter trial.
  
  
  METHODS
  University rehabilitation hospital.
  
  
  METHODS
  Patients (N=21) with clinically diagnosed CP/CPPS who are suspected of having myofascial pain syndrome.
  
  
  METHODS
  Ultrasound-guided trigger point injection.
  
  
  METHODS
  Visual analog scale (VAS), National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) score, and injection-associated complications.
  
  
  RESULTS
  Ultrasound (US)-guided trigger point injection of the iliopsoas, hip adductor, and lower abdominal muscles resulted in excellent outcomes. The mean values of the NIH-CPSI score decreased significantly from 20.2 pretreatment to 12.5 after the first treatment (P<.05). The mean values of VAS decreased significantly from 6.3 pretreatment to 2.9 after the first treatment (P<.05).
  
  
  CONCLUSIONS
  In patients with CP/CPPS, US-guided trigger point injections of the iliopsoas, hip adductor, and abdominal muscles are safe and effective for both diagnosis and treatment when the cause of groin pain is suspected to originate from muscles. In particular, the iliopsoas muscle was affected in all patients in this study.
authors.affiliation: Department of Urology, Myongji Hospital, Kwandong University College of Medicine, Gyeonggi, South Korea.
authors.forename: Dong Suk
authors.initials: DS
authors.lastname: Kim
authors.forename: Tae Yoong
authors.initials: TY
authors.lastname: Jeong
authors.forename: Yong-Kyun
authors.initials: YK
authors.lastname: Kim
authors.forename: Won Hyuk
authors.initials: WH
authors.lastname: Chang
authors.forename: Jeong-Gyu
authors.initials: JG
authors.lastname: Yoon
authors.forename: Sang Chul
authors.initials: SC
authors.lastname: Lee
mesh_terms: D000009:Abdominal Muscles; D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage*; D002908:Chronic Disease; D006801:Humans; D007273:Injections, Intramuscular; D008012:Lidocaine / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D009209:Myofascial Pain Syndromes / Q000150:complications / Q000188:drug therapy*; D010147:Pain Measurement; D017699:Pelvic Pain / Q000188:drug therapy* / Q000209:etiology; D010865:Pilot Projects; D011472:Prostatitis / Q000150:complications*; D016658:Psoas Muscles; D016896:Treatment Outcome; D061028:Trigger Points; D018084:Ultrasonography, Interventional; D055815:Young Adult
chemical_list: D000779:Anesthetics, Local; D008012:Lidocaine