Long-term prognosis of monoarthritis. A follow-up study

Scand J Rheumatol. 1983;12(4):374-6. doi: 10.3109/03009748309099744.


During 1973-75, a total of 446 patients with recent arthritis were examined. The diagnosis in 32 cases was non-classified monoarthritis. After the 3-9 years' follow-up of these 32 patients, two seropositive, definite rheumatoid arthritis cases (6%), and one ankylosing spondylitis case were noted. In the remaining patients the diagnosis was still non-specific arthritis. Of the 31 patients tested, 39% were HLA-B27-positive. The difference between this and the HLA-B27-positivity in the normal Finnish population (14%) is statistically significant (p less than 0.005). At the end of the follow-up the good prognosis of monoarthritis was confirmed: only one erosion developed in one patient's hands or feet.

MeSH terms

  • Adult
  • Arthritis / diagnosis*
  • Arthritis / immunology
  • Arthritis, Rheumatoid / diagnosis
  • Female
  • Follow-Up Studies
  • HLA Antigens / analysis
  • HLA-B27 Antigen
  • Humans
  • Male
  • Middle Aged
  • Prognosis
  • Prospective Studies
  • Spondylitis, Ankylosing / diagnosis


  • HLA Antigens
  • HLA-B27 Antigen