title: Symptomatic lumbar facet joint synovial cysts: clinical assessment of facet joint steroid injection after 1 and 6 months and long-term follow-up in 30 patients.
abstract: OBJECTIVE
  To study the results of facet joint intraarticular steroid injections in patients with symptomatic lumbar facet joint synovial cysts.
  
  
  METHODS
  Data from 30 patients (age range, 44-82 years; mean age, 67 years) with nerve root pain due to a lumbar facet joint synovial cyst and treated with facet joint steroid injection were retrospectively studied. On the basis of MacNab criteria, the clinical course of nerve root pain was evaluated after 1 (n = 30) and 6 (n = 28) months. Data from long-term follow-up (mean, 26 months) were also available in 14 nonsurgically treated patients.
  
  
  RESULTS
  After 1 month, the nerve root pain outcome was excellent or good in 20 patients (67%) and fair or poor in 10 (33%). After 6 months, 10 (50%) of these 20 patients still had excellent or good results, and 18 (60%) of the 30 patients had a fair or poor clinical status, 14 of whom underwent surgery; two patients (7%) were lost to follow-up. Excellent and good results were maintained at further follow-up (range, 9-50 months).
  
  
  CONCLUSIONS
  One-third of patients with symptomatic lumbar facet joint synovial cysts had long-lasting acceptable benefit from facet joint steroid injections in this study. Steroid injection should be indicated before surgery.
authors: Department of Bone and Joint Radiology, Hôpital Lariboisière, Paris, France.
authors: C
authors: C
authors: Parlier-Cuau
authors: M
authors: M
authors: Wybier
authors: R
authors: R
authors: Nizard
authors: P
authors: P
authors: Champsaur
authors: P
authors: P
authors: Le Hir
authors: J D
authors: JD
authors: Laredo
mesh_terms: D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D005938:Glucocorticoids / Q000008:administration & dosage* / Q000627:therapeutic use; D006801:Humans; D007270:Injections, Intra-Articular; D008159:Lumbar Vertebrae; D008297:Male; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology; D011239:Prednisolone / Q000008:administration & dosage / Q000031:analogs & derivatives / Q000627:therapeutic use; D011281:Pregnatrienes / Q000008:administration & dosage / Q000627:therapeutic use; D011355:Prodrugs; D011859:Radiography; D012189:Retrospective Studies; D013122:Spinal Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy*; D013126:Spinal Nerve Roots; D013581:Synovial Cyst / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy*; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D005938:Glucocorticoids; D011281:Pregnatrienes; D011355:Prodrugs; C009935:prednisolone acetate; D011239:Prednisolone; C005924:cortivazol