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AB0862 The sensitivity of the double contour sign in hand joints would be better by the dorsal surface examination
  1. AM Mahdi1,2,
  2. H Rkain1,
  3. M Erraoui1,
  4. R Watfeh3,
  5. S Aktaou3,
  6. L Tahiri1,
  7. R Bahiri1,
  8. F Allali1,
  9. N Hajjaj-Hassouni1
  1. 1Rheumatology, Faculty of Medicine and Pharmacy
  2. 2University Mohamed V, Rabat
  3. 3Faculty of Medicine and Pharmacy, Rabat, Morocco

Abstract

Objectives To compare the prevalence of ultrasonographic gout specific sign double contour between the dorsal and palmar surfaces of the hand joints.

Methods This is a cross-sectional study which includes 15 patients with chronic gout, defined according to the American College of Rheumatology criteria (ACR 1977). Ultrasound (US) examination was performed using a high-frequency linear probe (Toshiba Xario®, frequency (8–14 MHz)) in B and Doppler modes. 560 articular sites were studied at their dorsal and palmar surfaces. We compared the prevalence of the hyperechoic band over the superficial margin of the articular cartilage described as a double contour (DC) between the dorsal and palmar surfaces at each site studied.

Results The mean age at onset was 54.7±12,6 years, and the median diagnosis duration was 0 (0.3) years).

The results of the US examination are summarized in Table 1

Table 1.

comparison of double contour prevalence between the dorsal and palmar surfaces of wrist, MCP, PIP and DIP joints in the studied population

Conclusions Our study suggests that globally, DC predilect significatily in dorsal than in palmar surfaces of hand joints. These results should be verified on a larger population.

Disclosure of Interest None declared

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