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Background: Central sensitization may be present in some patients with hip osteoarthritis (OA), often reflected as widespread pain. We examine the association between pain extent with signs of central sensitization and other clinical and psychological features in patients with hip OA. Methods: Thirty patients with hip OA were recruited for this cross‐sectional observational study. Participants completed pain drawings on a digital tablet, which displayed frontal and dorsal views of the body. The pain extent (%) for each participant was determined by combining the frontal and dorsal pixels shaded and dividing by the total pixels of the body chart area. Participants completed patient‐reported outcome measures to assess for signs and symptoms of central sensitization and psychosocial factors. Quantitative sensory testing including pain pressure thresholds (PPTs) and thermal pressure thresholds was performed at points anatomically local and distant from the hip. Results: Women had significantly greater pain extent (6.71%) than men (2.65%) (z = −2.76, P < 0.01). Across all participants, increased pain extent was significantly associated with higher scores on the Widespread Pain Index (r2 = 0.426, P < 0.05), painDETECT questionnaire (r2 = 0.394, P < 0.05), and Pain Catastrophizing Scale (r2 = 0.413, P < 0.05), and with lower PPTs at the thenar eminence (r2 = −0.410, P < 0.05), vastus lateralis (r2 = −0.530, P < 0.01), vastus medialis (r2 = 0.363, P < 0.05), and greater trochanter (r2 = −0.373, P < 0.05). Conclusions: Greater pain extent was associated with several measures of signs and symptoms of central sensitization in patients with hip OA. These results support the utility of the pain drawing for identifying signs of central sensitization in patients with hip OA. [ABSTRACT FROM AUTHOR]

Background and Aims According to existing literature, musicians are at risk of experiencing a range of painful musculoskeletal conditions. Recently, a novel digital technology was developed to investigate pain location and pain extent. The aim of this study was to describe pain location and pain extent in musicians using a digital method for pain drawing ( PD) analysis. Additionally, the association between PD variables and clinical features were explored in musicians with pain. Methods One hundred and fifty-eight musicians (90 women and 68 men; aged 22.4 ± 3.6 years) were recruited from Swiss and U.K. conservatories. Participants were asked to complete a survey including both background musical information and clinical features, the Quick DASH ( QD) questionnaire, and the digital PDs. Results Of the 158 participants, 126 musicians (79.7%) reported having pain, with higher prevalence in the areas of the neck and shoulders, the lower back, and the right arm. The mean percentage of pain extent was 3.1% ± 6.5%. The mean QD score was higher for musicians with pain than for those without pain. Additionally, the results indicated a positive correlation between the QD score and pain extent, and there were significant correlations between age and pain intensity, as well as between pain extent and pain intensity. Conclusions The high prevalence of pain among musicians has been confirmed using a digital technique for PD acquisition and analysis. In addition, positive correlations between pain extent and upper limb disability have been demonstrated. Our findings highlight the need for effective prevention and treatment strategies for musicians. [ABSTRACT FROM AUTHOR]