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Grant Alfred D. M.D.; Strongwater, Allan M.D.; Lehman, Wallace M.D.; Nelson, John M.D.; Atar, Dan M.D.
Journal of Pediatric Orthopaedics: January-February 1990
Neck Metaphyseal Angle Guidance in Proximal Femoral Varus Osteotomy: PDF Only


An angle within the femoral arch is defined, and its line is described in selecting the osteotomy site and the position of the fixation device in performing a femoral varus osteotomy. This neck metaphyseal angle was measured with varying degrees of rotation on seven pediatric femurs; it was also studied on 283 randomly selected hip radiographs. The angle varied 25-40° in 90% of the patients and was not age related. The angle is stable within 5° as long as the landmarks, base of the great trochanter, and medial metaphysis of the femoral neck are definable (0-30° of rotation).

Address correspondence and reprint requests to Dr. A. D. Grant at Hospital for Joint Diseases, Orthopaedic Institute, 301 E. 17th Street, New York, NY 10003.

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