Abstract
Children with ulnar longitudinal deficiency present with a rare spectrum of malformations that involve the digits, partial to complete absence of the ulna, carpals, and hypoplasia of related joints, muscles, tendons, nerves, and blood vessels. Ulnar longitudinal deficiency appears to be non-inherited, but it does have a close association with other musculoskeletal anomalies, such as proximal femoral focal deficiency, fibular and tibial ray deficiency, phocomelia, scoliosis, clubfeet, absent patellae, and hip abnormalities. Clinically, the child’s entire upper limb is hypoplastic, and the elbow may be abnormal or fused. Patients most commonly have partial absence of the ulna, but usually with a stable wrist. Patients with ulnar longitudinal deficiency commonly have finger and thumb involvement, and most of their surgical treatment is focused on the function of their hand.
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Gottschalk, H.P., Bednar, M.S. (2021). Ulnar Longitudinal Deficiency. In: Laub Jr., D.R. (eds) Congenital Anomalies of the Upper Extremity. Springer, Cham. https://doi.org/10.1007/978-3-030-64159-7_11
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DOI: https://doi.org/10.1007/978-3-030-64159-7_11
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