Anteriorly displaced supracondylar fractures of the humerus are caused by lateral rotation injury and posteriorly displaced by medial rotation injury: a new hypothesis.
During the last 20 years, the author has treated 1120 cases of supracondylar fractures of the humerus in children and has proposed a new hypothesis. In supracondylar fractures of the humerus it is the rotational force at the time of the injury, which determines the antero-posterior displacement. Medial rotation injury because of an anterior fall on an outstretched hand with forearm pronated is associated with posterior displacement and lateral rotation injury because a posterior fall on the outstretched hand with supinated forearm is associated with anterior displacement.
Department of Orthopaedics, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India. gnkhare@sify.com
Ghanshyam Narayan
GN
Khare
D000058:Accidental Falls; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006810:Humeral Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D006811:Humerus / Q000000981:diagnostic imaging / Q000293:injuries* / Q000503:physiopathology; D008297:Male; D011403:Pronation; D011859:Radiography; D012399:Rotation / Q000009:adverse effects*; D014102:Torsion Abnormality / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology