Aesthetic discomfort in hand osteoarthritis: results from the LIege Hand Osteoarthritis Cohort (LIHOC)

Introduction: The primary complaint of patients with hand osteoarthritis (OA) is frequently the inelegant appearance of their hands. Only one study has been conducted to assess the magnitude of and identify the determinants of aesthetic discomfort in hand OA. Methods: The LIege Hand Osteoarthritis Cohort is a prospective cohort of 203 patients diagnosed with hand OA. At baseline, these patients rated their aesthetic discomfort on a 100-mm visual analogue scale (VAS) and used a Likert scale (range 0-7) to quantify the magnitude of their aesthetic damage. Results: The median value of the aesthetic discomfort VAS was 35.0 [interquartile range (Q1-Q3) 6.0-59.0]. The median damage was rated 3.0 (Q1-Q3 1.0-4.0), corresponding to a moderate level. Both were significantly (p < 0.02) associated with the female gender, the duration of hand OA, the radiological severity of OA (Verbruggen-Veys and Kellgren-Lawrence scales) and pain, disability, or stiffness [Australian Canadian Osteoarthritis Hand Index (AUSCAN) and Functional Index for Hand Osteoarthritis]. After a stepwise analysis, the parameters correlated to the aesthetic discomfort were the presence of erosive joints (p = 0.0048), the AUSCAN score (p < 0.0001), the number of joints with severe radiological damage (p = 0.023), and gender (p = 0.0009). For aesthetic damage, the parameters associated were AUSCAN score (p < 0.0001), duration of hand OA > 10 years (p = 0.001), and presence of erosive joints (p < 0.0001). Compared with patients with low aesthetic discomfort (VAS <= 33 mm), those with the highest discomfort (VAS >= 66 mm) had more erosive OA (p = 0.014), a higher Verbruggen and Veys score (p = 0.0039), and a higher AUSCAN score (p < 0.001). Conclusions: Aesthetic discomfort and damage are significant complaints in patients with hand OA. The determinants of the magnitude of these are gender, radiological severity, duration of hand OA, presence of erosive joints, and impact on pain, function, and stiffness as assessed with the AUSCAN.