Mirror hand-ulnar dimelia: a single centre experience with 13 patients.

Mirror hand-ulnar dimelia (MHUD) is rare congenital disorder with a wide range of clinical and radiographic features. The current nomenclature is confusing and the existing classification systems focus mainly on morphology without providing much guidance for treatment. The goal of this study was to review the clinical and radiological features in 13 children with MHUD that were treated at a single institution. Our findings support the hypothesis that MHUD typically involves the entire upper limb, and the treatment plan should consider the predictors of function at each limb segment. A logical and comprehensive management algorithm is proposed.Level of evidence: IV.