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  • Title: Combination drug therapy retards the development of rheumatoid atlantoaxial subluxations.
    Author: Neva MH, Kauppi MJ, Kautiainen H, Luukkainen R, Hannonen P, Leirisalo-Repo M, Nissilä M, Möttönen T, FIN-RACo Trail Group.
    Journal: Arthritis Rheum; 2000 Nov; 43(11):2397-401. PubMed ID: 11083260.
    Abstract:
    OBJECTIVE: To compare the efficacy of combination therapy with disease-modifying antirheumatic drugs (DMARDs) versus single therapy with DMARDs in the prevention of early cervical spine changes in patients with rheumatoid arthritis (RA). METHODS: One hundred ninety-five patients with recent-onset RA (mean disease duration 8 months) were randomly assigned to receive a combination of DMARDs (sulfasalazine, methotrexate, hydroxychloroquine, and prednisolone) or a single DMARD with or without prednisolone. After 2 years of followup, cervical spine radiographs were taken of 176 of these patients (85 in the combination-therapy group and 91 in the single-therapy group). These radiographs were evaluated, and the findings were correlated with the therapy strategies as well as with peripheral joint destruction and clinical and laboratory variables describing the disease activity. RESULTS: Anterior atlantoaxial subluxation (aAAS), atlantoaxial impaction (AAI; i.e., vertical subluxation), and subaxial subluxation (SAS) were found in only 6 (3.4%), 2 (1.1%), and 5 (2.8%) of the patients, respectively. Interestingly, none of the patients in the combination-therapy group had aAAS or AAI. The incidences of aAAS and AAI in the single-therapy group were 6.6% and 2.2%, respectively. SAS was present in 2 patients (2.2%) in the single-therapy group and in 3 patients (3.5%) in the combination-therapy group. The difference in the incidence of aAAS between the treatment groups was statistically significant (P = 0.029). None of the patients with cervical spine changes achieved remission of RA during the study. CONCLUSION: In the present study, the incidence of cervical spine subluxations in patients treated with single-drug therapy was in accord with findings of previous studies. However, none of the patients in the combination-therapy group had aAAS or AAI. These findings suggest that early, aggressive combination-DMARD therapy with sulfasalazine, methotrexate, hydroxychloroquine, and prednisolone can prevent or retard the development of rheumatoid atlantoaxial disorders.
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