The Journal of Bone and Joint Surgery 81:295-296 (1999)
© 1999 The Journal of Bone and Joint Surgery, Inc.
Correspondence
Charles S. Neer, II, M.D.,
John W. Sperling, M.D.,
Robert H. Cofield, M.D. and
Charles M. Rowland, M.S.
TO THE EDITOR:
The article "Neer Hemiarthroplasty and Neer Total Shoulder Arthroplasty in Patients Fifty Years Old or Less. Long-Term Results" (80-A: 464473, April 1998), by Sperling et al., is an impressive statistical report from the outstanding database of the Mayo Clinic. However, the clinical information inflates the prevalence of complications because it is based on experience from early in the learning curve, which does not represent optimum technique. Regardless of how perfect the mathematics are, we are looking at a technique that is twenty years old.
Many of the patients in this series, who were managed between 1976 and 1985, were reported on previously1,2,6. Consider the technique at that time. The Neer-II prosthesis, which was introduced in 1973, was the first nonconstrained total shoulder system. With the cooperation of the manufacturer (3M, St. Paul, Minnesota), it was field-tested in a multicenter study for nine years before it was . . . [Full Text of this Article]

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