Ортопедическая и мышечная система: текущие исследования
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Multiple Finger Extensor Tendon Dislocations in Systemic Lupus Erythematosus with Unique Trigger Phenomena

Shunsuke Asakawa*, Yuki Hara, Sho Kohyama and Yasumasa Nishiura

Dislocation of extensor tendons is the most frequently seen complaint for suffers of rheumatoid arthritis. Here, we present a rare clinical case of multiple finger extensor tendon dislocations in systemic lupus erythematosus (SLE). Upon physical examination, active extension of middle, ring and little fingers were impossible at the MP joint. A trigger phenomenon was generated when these extensors were reduced in passive extension. The procedure was performed under local anesthesia. A satisfactory clinical outcome was achieved with sagittal band reconstruction and reinforcement for the site using juncturae tendinum. Surgical intervention under the local anesthesia allowed for extensive gathering of information about repair site strength and dynamic stability.