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    A rare case of distal interphalangeal chondromatosis in the middle finger: Case report with review of literature

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    Primary synovial chondromatosis is a benign condition and consists of cartilaginous metaplasia of the synovium, which leads to the production of intra-articular and periarticular osteocartilaginous bodies. The entity usually involves the synovium of large joints (knee, hip, elbow, and shoulder). It has also been reported in the hand, especially involving interphalangeal or metacarpal joints of digits. The most common symptoms are pain, swelling, loss of range of motion and muscle atrophy. Because of its low prevalence and non-specific symptoms, synovial chondromatosis can present a diagnostic challenge for the hand surgeon and may lead to a delay in treatment. To date, only three cases involving distal interphalangeal joint have been reported. This article describes a rare case of primary articular synovial chondromatosis in the distal interphalangeal joint of a 65-year-old female, giving a deep insight into this pathology, and reviews the literature

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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