title: Detrusor overactivity and penile erection in patients with lower lumbar spine lesions.
abstract: OBJECTIVE
  To investigate urodynamically detrusor overactivity and evaluate surgical outcome in patients with lower lumbar spine lesions.
  
  
  METHODS
  Eighty patients with spine lesions below the third lumbar spine including 31 patients with intervertebral disc prolapse (IDP) (mean age: 38.2 years) and 49 patients with spinal canal stenosis (SCS) (mean age: 56.7 years) were studied. Urinary symptoms and urodynamic data were recorded before and after orthopedic surgery.
  
  
  RESULTS
  Detrusor overactivity was noted in 17 patients: 3 IDP patients (10%) and 14 SCS patients (29%). Of these 17 patients (9 males and 8 females), 14 (82%) had voiding symptoms and 15 (88%) had storage symptoms. One patient was asymptomatic. Intermittent claudication was noted in 14 patients: 8 had urgency, 11 urge incontinence and 4 male patients showed erection on walking. Of 10 patients followed up after surgery, detrusor overactivity disappeared in 5 patients, improved in 1 patient and remained unchanged in 4 patients.
  
  
  CONCLUSIONS
  Detrusor overactivity was found in lower lumbar spine lesions. This phenomenon seemed to be caused by the irritation of sacral roots, especially on walking.
authors.affiliation: Department of Urology, Chiba University, School of Medicine, Chiba City, Chiba.
authors.forename: T
authors.initials: T
authors.lastname: Yamanishi
authors.forename: K
authors.initials: K
authors.lastname: Yasuda
authors.forename: R
authors.initials: R
authors.lastname: Sakakibara
authors.forename: N
authors.initials: N
authors.lastname: Murayama
authors.forename: T
authors.initials: T
authors.lastname: Hattori
authors.forename: H
authors.initials: H
authors.lastname: Ito
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010410:Penile Erection / Q000502:physiology*; D013122:Spinal Diseases / Q000150:complications* / Q000601:surgery; D001743:Urinary Bladder / Q000502:physiology; D014549:Urinary Incontinence / Q000209:etiology*; D014563:Urodynamics