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Fig. 1 | Journal of Orthopaedic Surgery and Research

Fig. 1

From: Older age and multi-joint external fixator are two risk factors of complications in ulnar lengthening in children with hereditary multiple exostosis

Fig. 1

Schematic drawing of the Masada classification for forearm deformity in patients with multiple osteochondromas. Type 1: the main osteochondroma formation is in the distal portion of the ulna, but the radial head is not dislocated. Type IIA: the radial head is dislocated because of an osteochondroma at the proximal metaphysic of the radius. Type IIB: in addition to ulnar shortening the radial head is dislocated. Type III: the main osteochondroma formation is in the metaphysic of the distal radius, and there is relative shortening of the radius. MHE multiple hereditary exostosis

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X