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TWENTY-EIGHTH REPORT OF PROGRESS IN ORTHOPEDIC SURGERY

ROBERT B. OSGOOD, M.D.; NATHANIEL ALLISON, M.D.; PHILIP D. WILSON, M.D.; HERMAN BUCHOLZ, M.D.; ROBERT SOUTTER, M.D.; HARRY LOW, M.D.; MURRAY S. DANFORTH, M.D.; LLOYD T. BROWN, M.D.; M. N. SMITH-PETERSEN, M.D.
Arch Surg. 1926;12(1):151-168. doi:10.1001/archsurg.1926.01130010155007.
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CONGENITAL CONDITIONS 

Congenital Dislocation of the Hip.  —Certain rather interesting observations have been made in two series of end-result studies of reduction of congenital dislocation of the hip. One study is by Ely1 of seventeen cases in which the Lorenz method was employed. Nine, or a little over 50 per cent., of these cases were successful. Ely believes that if the first attempt to reduce fails a second attempt is rarely successful. Open operation showed that the failure was due to a constriction of the capsule with or without adhesions of the head, or to the internal twist of the neck and head on the shaft of the femur. In his series, deformities of the acetabulum were not important.The second series of 349 cases in private practice is reported by Chatterton and Flagstad,2 and in these Ridlon's method of reduction was employed. About 85 per cent, of

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