Radiographic measurements in the evaluation and classification of elbow joint destruction in patients with rheumatoid arthritis.

Clinical Rheumatology
Kenzo HashizumeToshifumi Ozaki

Abstract

We developed two new radiographic parameters-the humeral surface height ratio and ulnar surface height ratio-to precisely detect changes in the bony structure of rheumatoid elbows. Of the 59 patients with rheumatoid arthritis, 101 elbows were classified into four types (osteoarthritis, ankylosis, erosive, and resorptive) according to the radiographic appearance. Clinically, osteoarthritis type and ankylosis type were considered to be stable form, and erosive type and resorptive type were unstable form. Patients' clinical data and yearly radiographic changes in the bony structure evaluated by the humeral surface height ratio and ulnar surface height ratio were compared among the four types and between the two forms. There were significant differences between the two forms and among the three types except for the ankylosis type in yearly radiographic changes in the bony structure evaluated by the humeral surface height ratio and ulnar surface height ratio. Stable and unstable forms were distinguished by a cut-off point of 0.65 and 2.58 in yearly radiographic changes in the bony structure evaluated by the humeral surface height ratio and the ulnar surface height ratio, respectively. These parameters might be useful for monitoring ...Continue Reading

References

Nov 30, 2000·The New England Journal of Medicine·J M BathonB K Finck
Nov 30, 2000·The New England Journal of Medicine·P E LipskyUNKNOWN Anti-Tumor Necrosis Factor Trial in Rheumatoid Arthritis with Concomitant Therapy Study Group
Jun 19, 2002·Journal of Shoulder and Elbow Surgery·Janne T LehtinenMatti U k Lehto
Jan 15, 2004·Annals of the Rheumatic Diseases·F C BreedveldR N Maini
Mar 6, 2004·Lancet·Lars KlareskogUNKNOWN TEMPO (Trial of Etanercept and Methotrexate with Radiographic Patient Outcomes) study investigators
Dec 1, 2004·Journal of Shoulder and Elbow Surgery·Koichi NemotoKyosuke Fujikawa
May 4, 2006·Clinical Rheumatology·Takashi KitamuraKazuomi Sugamoto
Jun 25, 1949·Journal of the American Medical Association·O STEINBROCKERR C BATTERMAN

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