Scientific ArticleAn Analysis of Associated Conditions and the Relationship Between the Severity of Hand Manifestations With That of the Forearm in Ulnar Longitudinal Deficiency
Section snippets
Materials and Methods
Before study initiation, institutional review board approval was obtained. The Congenital Upper Limb Differences (CoULD) registry, a multicenter database of patients with congenital upper limb anomalies, was used.29,30 Patients aged less than 18 years who are receiving care for a congenital upper limb difference from a participating institution and have undergone no previous surgical intervention for their congenital upper limb difference are eligible for inclusion in the registry. At the time
Results
A total of 89 extremities were identified in 75 patients (61 unilateral and 14 bilateral). The mean age at enrollment was 3.4 years (median, 1.9 years; range, 0–15.5 years). In this study, 70 of the 75 patients (93%) with ULD had an anomaly of the hand. A total of 14 of the 75 patients (19%) had an associated medical condition (Table 2), and 15 of the 75 patients (20%) had an associated musculoskeletal abnormality (Table 3).
Discussion
Ulnar longitudinal deficiency is an uncommon congenital malformation of the upper extremities, with a highly variable clinical presentation, that potentially affects the entire length of the upper extremities, from the shoulder girdle to the hand.14,15,24,27,28 Unlike RLD, ULD is believed to occur sporadically and has less commonly been associated with concomitant medical conditions. Goldfarb et al17 examined the medical and musculoskeletal conditions in 165 patients with RLD and found that
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